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Topic/Matter Intersection

Topic:"Asset Management" in M12451

Matter: Nova Scotia Power Inc. - 2026 General Rate Application (GRA)
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N-3Direct Evidence - General Rate Application 5 passages
Note: Appendix numbers correspond to section numbers in the Application. Some sections do not contain appendices. p. p. 15
Note: Appendix numbers correspond to section numbers in the Application. Some sections do not contain appendices. Description Appendix List of Standardized Filings and Attachments 1A List of Abbreviations 1B Status of GRA-Related Deliverab...

AI summary The document outlines various appendices related to a regulatory proceeding, including standardized filings, operating costs, depreciation studies, hydro decommissioning reports, and cost of service studies. These appendices provide detailed information on fuel and power costs, asset management, and infrastructure planning.

Overview p. p. 30
Overview - NS Power is a capital-intensive business that employs a significant asset base used in and in - support of generation, transmission, and distribution of electricity. Due to the size and scope of - the Company's asset base, NS Po...

AI summary NS Power manages a large asset base through pooled depreciation, aligning with industry standards. Regulatory amortization allows recovery of deferred charges over time. The company seeks to recover expenses related to property, plant, equipment, and regulatory assets through 2026-2027 customer rates, referencing standardized filing documents.

Hydro p. p. 43
to the recreational use of the waterway. In the case of the Tusket Hydro System, a reduction in the water table through decommissioning the Hydro System, would result in effects on residential wells. In addition to the foregoing, in the ca...

AI summary The decommissioning of Nova Scotia's Tusket, Wreck Cove, and Mersey hydroelectric systems could impact residential wells and jeopardize reliability standards set by NERC and NPCC. NS Power argues against including decommissioning costs in customer rates until broader stakeholder discussions occur, citing the need to mitigate rate pressure while ensuring grid reliability.

9.2.1 Average Capital Assets p. p. 49
Power has a mature asset management program and holds itself accountable to make capital - investments in an efficient manner to provide value to customers. This is consistent with the data - included in the Benchmarking Report provided by...

AI summary NS Power's mature asset management program ensures efficient capital investments, as evidenced by ScottMadden's Benchmarking Report (OP-03 Attachment 1) showing below-median capital investment per customer. The company expects increased average capital assets due to sustaining and transformational investments.

9.2.3 Average Materials and Supplies Inventory p. pp. 49-52
9.2.3 Average Materials and Supplies Inventory - NS Power has based its fuel and supplies inventory on the projected monthly average for 2026- - 2027, consistent with the methods used in the 2023-2024 General Rate Application. The inventor...

AI summary NS Power bases its 2026-2027 materials and supplies inventory on projected monthly averages, consistent with the 2023-2024 General Rate Application. The inventory includes coal, biomass, oil, and maintenance materials, with forecasted values of $298.4M (2026) and $294.5M (2027). Calculations for working capital using the 2012 lead/lag methodology are referenced in FOR-15.

N-42026-2027 GRA PR 01-03 - Proposed Rates (Tariffs) 2 passages
SPECIAL CONDITIONS p. pp. 28-30
SPECIAL CONDITIONS - (1) Metering will normally be at the low voltage side of the transformer. Should the customer's requirements make it necessary for the Company to provide primary metering, then the customer will be required to make a c...

AI summary Special conditions outline metering requirements, customer cost responsibilities for primary metering, transformer ownership for non-standard services, and load integrity obligations. Adjustments to kWh usage and system integrity factors (reliability, harmonics, voltage flicker) are specified. Customers must ensure their operations do not compromise power supply stability.

Supplier Obligations p. pp. 72-183
Supplier Obligations Transmission Customers that self-supply this service, and third-party suppliers, shall provide between 100 and 110 percent of the stated MW amount within 30 minutes of notification by the Transmission Provider to activ...

AI summary Suppliers must provide 100-110% of required MW reserves within 30 minutes of notification by the Transmission Provider, sustaining reserves for 60 minutes. Failure to meet obligations incurs penalties equal to one month's charge per deficiency, emphasizing system reliability. Penalties apply due to the critical role of reserves in grid stability.

N-52026-2027 GRA Appendix 1-6 - Redacted 34 passages
2026-2027 GRA Direct Evidence Appendix 3B Page 2 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 25
2026-2027 GRA Direct Evidence Appendix 3B Page 2 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Revisio n no. Effective Date Changes 0 April 8,2021 Document developed 1 April 9, 2025 Updated to reference existing Asset Management System...

AI summary The document is an appendix to a General Rate Application (GRA) for the 2026-2027 period, containing revisions and updates to procedures related to the Asset Management System. It includes a revision history with dates and changes made.

2026-2027 GRA Direct Evidence Appendix 3B Page 8 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 31-32
2026-2027 GRA Direct Evidence Appendix 3B Page 8 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 1.1 Map of NS Power Infrastructure NS Power recognizes the need for proactive climate change risk management to anticipate, plan for,...

AI summary NS Power is implementing a climate adaptation planning process to manage risks from climate change and extreme weather events on its $5 billion electricity infrastructure. The Strategic Asset Management Plan (SAMP), filed with the Nova Scotia Utility and Review Board, outlines a comprehensive approach to asset management aligned with corporate and regulatory goals.

2. Step 2: Identify Critical Assets and Operations p. p. 40
2. Step 2: Identify Critical Assets and Operations This section discusses how NS Power classifies its Generation and Transmission & Distribution assets in the context of importance to overall objectives. NS Power's assets and operations ge...

AI summary NS Power generates 10,000 GWh annually, meeting 95% of Nova Scotia's electricity needs via 5,000 km transmission and 28,000 km distribution infrastructure. The utility emphasizes classifying assets based on their role in delivering safe, reliable, and affordable electricity to over 500,000 customers.

2.1. Identification of Assets and Operations Critical to NS Power's Mission and Mandate p. p. 40
2.1. Identification of Assets and Operations Critical to NS Power's Mission and Mandate The assessment and assignment of the Criticality of an asset is fundamental to NS Power's approach to risk evaluation and decision‐making. Criticality...

AI summary NS Power assesses asset criticality based on impacts to health, environment, business sustainability, and reliability. Criticality is rated 1-5 using the Asset Management System Operating Procedure (NSPI-AMS-002). This aligns with the Capital Execution Justification Criteria (CEJC) and informs risk management and decision-making.

3. Step 3: Identify Key Potential Climate Impacts p. pp. 40-41
3. Step 3: Identify Key Potential Climate Impacts This section explains how NS Power has increased its knowledge on how climate impacts may develop over time and how they might be prioritized for adaptation. It summarizes the climate scena...

AI summary NS Power outlines its approach to identifying climate impacts on assets and operations through collaboration with Acclimatise and Manifest. The process includes climate scenario data analysis, prioritization methods, and integration into asset management. The CEA Guide's Step 3 focuses on assessing existing and potential climate risks to critical infrastructure.

2026-2027 GRA Direct Evidence Appendix 3B Page 18 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 41
2026-2027 GRA Direct Evidence Appendix 3B Page 18 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - Harvested best in class present-day and projected datasets and completed climate data analytics to generate physical climate risk analysi...

AI summary NS Power conducted climate risk analysis for 100 critical assets using present-day and projected climate datasets under RCP 4.5 and 8.5 scenarios. The analysis included monthly outputs with statistical metrics for risk assessment in their asset management mechanism.

3.1. Physical Climate Risk Analysis p. pp. 41-42
3.1. Physical Climate Risk Analysis The physical climate risk analysis exercise was designed to use the best available climate data to identify the various climate change impacts NS Power might face based on its geographic location and spe...

AI summary NS Power's physical climate risk analysis aims to identify climate change impacts on its infrastructure using climate data, integrate it into asset risk assessments, and inform mitigation strategies. Objectives include identifying risk variables, selecting time horizons, and providing usable data formats.

3.2. Identification of Critical Assets and Operations Vulnerable to Climate-related Risks p. pp. 48-50
3.2. Identification of Critical Assets and Operations Vulnerable to Climate-related Risks Building on the criticality assessment of NS Power assets and the climate datasets, this section focuses on identifying assets and operations vulnera...

AI summary NS Power identifies climate-vulnerable assets using the CEA Guide's climate impact table, mapping hazards to asset classes. Evaluation criteria include adaptation degree, expenditure levels, and timing, informed by climate data and historical operational insights from the EAM team.

2026-2027 GRA Direct Evidence Appendix 3B Page 27 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 50-51
2026-2027 GRA Direct Evidence Appendix 3B Page 27 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 3.1 below illustrates how these various climate hazards, such as storm surges, sea level rise, extreme weather events, and increasin...

AI summary The document discusses how climate hazards, such as storm surges and sea level rise, impact NS Power's critical operational areas, including transmission, distribution, and hydroelectric operations. It highlights the use of the ELAD Matrix to prioritize climate adaptation efforts based on expenditure and adaptation degree.

Preamble p. pp. 51-58
2026-2027 GRA Direct Evidence Appendix 3B Page 28 of 54 ELAD Matrix scores are currently derived using data from the Climate Master spreadsheet , which is based on experiential and historical/observed information from NS Power's asset reli...

AI summary The ELAD Matrix scores are currently derived from historical data but will be updated with quantitative climate data once climate risk analysis datasets are integrated into NS Power's asset management. This will improve the accuracy of the ELAD Matrix.

4. Step 4: Assess Risks to Critical and Vulnerable Assets and Operations p. pp. 54-56
4. Step 4: Assess Risks to Critical and Vulnerable Assets and Operations This section explains NS Power's existing asset risk assessment process and lays the groundwork for integrating climate impacts into assessments of generation and T&D...

AI summary NS Power's asset risk assessment process, integrating climate impacts, uses EAM's methodology to evaluate risks, inform investment and maintenance strategies, and adapt to climate change. The process assesses risks to critical assets and operations, incorporating climate considerations alongside safety risks.

4.1. NS Power's Asset Risk Management Process – Asset Reliability Teams p. p. 56
4.1. NS Power's Asset Risk Management Process – Asset Reliability Teams The Asset Reliability Team process at NS Power, as detailed in the Asset Management System Procedure (NSPI-AMS-001), plays a crucial role in the Company's climate adap...

AI summary NS Power's Asset Reliability Teams are integral to its climate adaptation strategy, managing asset risks and ensuring system resilience. These teams assess and maintain critical assets, using risk matrices and integrating climate adaptation plans to enhance reliability.

4.2. NS Power's Asset Risk Assessment Process – Risk Profiles p. pp. 56-57
4.2. NS Power's Asset Risk Assessment Process – Risk Profiles In the assessment of risk, NS Power considers three main aspects for each asset: its mission and utilization, its criticality to the electrical system, and its condition or like...

AI summary NS Power assesses asset risk based on mission/utilization, criticality, and condition. Risk profiles guide mitigation strategies and capital planning. Criticality considers health, safety, environmental, financial, and brand impacts. Condition assessments use maintenance, monitoring, and field experience. The process is outlined in AMPs, CEJC, and NSPI-AMS-002.

2026-2027 GRA Direct Evidence Appendix 3B Page 34 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 57-58
2026-2027 GRA Direct Evidence Appendix 3B Page 34 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 4.1: Overview of NS Power's Asset Management Mechanism

AI summary The document includes Figure 4.1, which outlines NS Power's Asset Management Mechanism as part of the 2026-2027 GRA Direct Evidence Appendix. The figure is referenced in a redacted section of the regulatory proceeding, focusing on asset management processes.

Evaluating Climate Datasets for Physical Impacts to Assets p. p. 58
Evaluating Climate Datasets for Physical Impacts to Assets NS Power regularly reviews the climate datasets provided by Acclimatise and Manifest in [Step 3](#page-41-0) to integrate the key climate impacts [(Table 3.5)](#page-52-1) into the...

AI summary NS Power evaluates climate datasets from Acclimatise and Manifest to assess physical impacts on assets, focusing on wind events affecting overhead infrastructure. Historical wind data shows lower values than CSA standards, prompting recommendations for updated design criteria. Climate trends indicate rising wind speeds by 2030/2050, informing risk mitigation strategies for asset reliability.

5. Step 5 Identify Potential Adaptation Measures (risk controls) p. p. 60
5. Step 5 Identify Potential Adaptation Measures (risk controls) This step reviews the types of risk mitigation measures that are available to NS Power to adapt to physical climate impacts and the Company's management system for climate in...

AI summary NS Power's Step 5 focuses on identifying adaptation measures to mitigate physical climate risks. The process involves annual risk assessments by asset reliability teams, prioritizing high/medium-high risks. Mitigation options are evaluated through two streams: asset teams proposing solutions and capital engineering resources flagging assets. No standardized response exists for risks, with treatments varying by asset.

2026-2027 GRA Direct Evidence Appendix 3B Page 38 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 61-62
2026-2027 GRA Direct Evidence Appendix 3B Page 38 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 5.2: Risk Mitigation Options for High Risk Assets

AI summary The document contains a redacted page from a Nova Scotia regulatory proceeding related to the 2026-2027 General Rate Application (GRA). It references Figure 5.2, which discusses risk mitigation strategies for high-risk assets, though specific details are confidential.

Critical Spares p. p. 62
Critical Spares The critical spares option is used to prepare for the failure of the asset. The critical spare would be kept in inventory, or readily available from approved suppliers, to enable a relatively quick replacement and return-to...

AI summary The critical spares strategy involves maintaining inventory or supplier access for essential components to ensure rapid replacement of failed assets, minimizing operational disruptions and customer impact. Spares are considered based on asset complexity, lead times, and cost, with classification into operating or capital expenditures depending on the component type. For example, pole-top transformers may be kept in inventory due to their relatively low cost and quick installation requirements.

2026-2027 GRA Direct Evidence Appendix 3B Page 39 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 62
2026-2027 GRA Direct Evidence Appendix 3B Page 39 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) This option may be suitable where an item has parameters that can be readily measured, such as vibration or temperature, or where operation...

AI summary The text discusses monitoring methods for transmission infrastructure, such as using vibration or temperature sensors, or operational tests to detect failure mechanisms. Implementation may involve operational or capital expenditures, with examples like installing devices to monitor ice build-up on high-risk transmission lines.

Operating Limitations p. p. 62
Operating Limitations There are many ways that managing the operation of a particular asset, or group of assets, in a new way, or modifying operating limitations on the asset, can be an effective form of risk mitigation. This measure is of...

AI summary Operating limitations are risk mitigation strategies that modify asset operations through updated procedures, training, or advisories. They prevent accelerated failure by restricting operations (e.g., reducing reservoir storage levels in aging dams). These measures may involve operational expenditures or capital investments depending on required modifications.

Refurbishment p. p. 62
Refurbishment For many assets, it is possible to refurbish to extend the useful life and/or increase the functional operation of the asset rather than completely replacing the asset. Refurbishment may entail significant component replaceme...

AI summary Refurbishment extends asset life and improves functionality through component replacement or modifications, offering a cost-effective alternative to full replacement. It may involve significant changes and is categorized as operating or capital expenditure based on criteria like magnitude and benefits (e.g., extended life, increased capacity). Examples include re-machining damaged pumps to restore functionality.

Asset Life Assessment p. p. 62
Asset Life Assessment An asset life assessment may be considered if drivers such as financial or regulatory requirements, or as described herein, significant anticipated climate impacts, do not support the other forms of risk mitigation ev...

AI summary Asset life assessments are conducted when factors like climate change or regulatory requirements make other risk mitigation strategies impractical. Outcomes may include refurbishment, replacement, or decommissioning, with decommissioning timelines potentially delayed. An example is a coastal power plant facing sea-level rise, necessitating decommissioning planning.

7. Step 7: Detail and Document Implementing Control Actions p. p. 68
7. Step 7: Detail and Document Implementing Control Actions This section lists the various NS Power roles that will be involved in integrating climate considerations in order to fulfil this adaptation plan. Each role will have a list of sp...

AI summary NS Power's Step 7 involves integrating climate considerations into existing risk management processes through governance and asset management systems, ensuring roles from leadership to individual personnel address climate-related adaptation needs.

Enterprise Asset Management (Managers) p. p. 69
Enterprise Asset Management (Managers) - Is directly accountable for performance against key metrics for climate impacts (see Section [8.2)](#page-76-0); - Allocates resources to enable implementation of Climate Adaptation Plan; - Particip...

AI summary Enterprise Asset Management (Managers) are responsible for accountability against climate impact metrics, resource allocation for the Climate Adaptation Plan, participation in climate risk assessments, and escalating climate-related concerns to senior leadership.

Asset Reliability Team Leads/Members p. p. 69
Asset Reliability Team Leads/Members - Become familiar with the key climate risks and associated impacts relevant to the particular asset class and, review available climate datasets relevant to those key climate risks and impacts; - Facto...

AI summary NS Power's Asset Reliability Team is tasked with integrating climate risk assessments into asset management, leveraging climate datasets, and advancing technological innovations for climate adaptation. The organization uses internal tracking systems to monitor asset strategies and improve climate resilience programs.

2026-2027 GRA Direct Evidence Appendix 3B Page 52 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 74
2026-2027 GRA Direct Evidence Appendix 3B Page 52 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) circulating water system caused by an excessive growth of zebra mussels. Warmer water temperature and large storms, related to climate chan...

AI summary The text discusses climate change impacts on water systems via zebra mussel growth due to warmer temperatures and storms. It outlines asset management processes, including Root Cause Analysis (RCA) for outage events and risk scoring updates by asset reliability teams.

8.2. Asset Reliability Team Asset Performance Reviews p. pp. 74-76
8.2. Asset Reliability Team Asset Performance Reviews The performance reports discussed above are reviewed annually by asset reliability teams to allow for changes in performance of the assets to be monitored. In addition, the asset reliab...

AI summary Asset reliability teams conduct annual reviews of asset performance, monitor climate impacts, and update risk mitigation plans. They use CAMS to track climate-related risks and document adaptation efforts, ensuring climate-specific risks are addressed separately.

8.3. Continuous Improvement p. p. 76
8.3. Continuous Improvement NS Power's approach to climate adaptation utilizes existing programs and processes to ensure continuous improvement is achieved. The performance monitoring reports outlined above are one example of existing proc...

AI summary NS Power employs existing programs like performance monitoring reports, asset management mechanisms, and the Root Cause Analysis (RCA) program to drive continuous improvement in its Climate Adaptation Plan. These processes ensure ongoing evaluation, risk identification, and adaptation measures are integrated into asset management and climate strategies.

2026-2027 GRA Direct Evidence Appendix 3B Page 53 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. pp. 76-77
2026-2027 GRA Direct Evidence Appendix 3B Page 53 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) participation in the GER reporting process for events that may require further analysis. In addition, investigations may be requested at an...

AI summary The text discusses NS Power's participation in GER reporting for climate-related events, the potential triggering of RCA for major outages, and the use of existing asset management activities to improve the Climate Adaptation Plan. Continuous improvement of the asset management system is highlighted through the NS Power SAMP, with performance and compliance reports supporting this effort.

Abstract p. p. 79
Abstract This report summarizes a best practice review of wildfire mitigation practices already implemented by NSP, as well as those to be considered for future implementation. Enterprise Asset Management Asset Reliability & Risk Management

AI summary This report reviews Nova Scotia Power's (NSP) current wildfire mitigation practices and evaluates potential future measures. It focuses on Enterprise Asset Management and Asset Reliability & Risk Management strategies to enhance safety and infrastructure resilience.

Circuit Breaker replacement p. p. 102
Circuit Breaker replacement Replacing aging substation infrastructure such as obsolete 138kV and 69kV substation circuit breakers, electro-mechanical relays, and Remote Terminal Units (RTUs) ensures your protection and control equipment is...

AI summary Replacing aging 138kV and 69kV substation circuit breakers, electro-mechanical relays, and RTUs ensures effective protection and control, reduces wildfire risks, and inspections are conducted as required.

2026-2027 GRA Direct Evidence Appendix 3C Page 34 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 111
2026-2027 GRA Direct Evidence Appendix 3C Page 34 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) For transmission, a small number of fault indicators are installed at some line taps. These indicate which section of the line has a fault...

AI summary NS Power uses fault indicators at targeted locations on its distribution system, particularly in isolated or hard-to-access circuits like 85S-401 in Northern Cape Breton. These devices help identify fault locations more quickly, though their use is limited due to the prevalence of other protection devices.

Downline Device Monitoring and Communication p. p. 111
Downline Device Monitoring and Communication NS Power is expanding the implementation of telecommunications connectivity providing telemetry and controls to intelligent field devices throughout the grid, including Remote Terminal Units (RT...

AI summary NS Power is enhancing grid resilience by expanding telecommunications connectivity to intelligent field devices like RTUs and distributed protection equipment. This improves outage detection, fault location identification, remote operations, and asset management capabilities, particularly in wildfire risk mitigation.

2026-2027 GRA Direct Evidence Appendix 6B (Clean) Page 32 of 33 REDACTED (CONFIDENTIAL INFORMATION REMOVED) p. p. 196
2026-2027 GRA Direct Evidence Appendix 6B (Clean) Page 32 of 33 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Prior Year's Accumulated Interest: the interest accumulated over the previous year on the balance in the 'Balancing Account' to be...

AI summary The document defines financial and operational terms for the 2026-2027 GRA, including interest recovery, balance adjustments, purchased power, system requirements, real-time pricing charges, and water royalties. These terms are part of a regulatory proceeding in Nova Scotia.

N-62026-2027 GRA Appendix 7A-E - Redacted 5 passages
APPENDIX 7A – OM&G COSTS BY GROUP p. p. 5
APPENDIX 7A – OM&G COSTS BY GROUP APPE: NDIX 7A – OM&G COSTS BY GROUP 1 1.1 OM&G Costs by Group 2 1.2 Inflationary Increases 6 1.3 Power Production 6 1.4 Enterprise Asset Management and Project Implementation 10 1.5 Energy Delivery 11 1.5....

AI summary Appendix 7A details the categorization of OM&G (Operations, Maintenance, and General) costs across groups such as inflationary increases, power production, enterprise asset management, energy delivery, customer experience, environmental services, and corporate adjustments. It outlines subsections including T&D contractor management, grid modernization, cyber security, and executive compensation.

1.4 Enterprise Asset Management and Project Implementation p. p. 9
1.4 Enterprise Asset Management and Project Implementation The EAM and Project Implementation teams are responsible for asset management strategies, capital management and execution of large capital projects. These teams are responsible fo...

AI summary The EAM and Project Implementation teams manage asset strategies and capital projects for NS Power, focusing on decarbonization and reliability. OM&G expenses rose to $8.5M in 2024 due to expanded EIT programs and increased headcount. Forecasts show continued growth through 2027, driven by inflation, personnel needs, and cybersecurity investments. EITs are prioritized for cost-effective project management.

1.5.2 T&D Contractor Management p. p. 10
1.5.2 T&D Contractor Management - Provincial population growth and the provincial Internet for Nova Scotia program has led to a significant increase in the requested work for the Utility Services team since the 2023- 2024 GRA forecast was...

AI summary NS Power reports increased operating expenses due to higher demand from population growth and the Internet for Nova Scotia program, leading to more work for the Utility Services team. Fleet costs have risen due to increased field resources, supply chain delays, and aging vehicles requiring more maintenance. NS Power plans capital investments in 2025-2027 to address fleet costs, but expects continued increases due to staffing and fleet growth.

1.5.5 Control Centre p. pp. 15-16
e is forecast to increase by $5.2 million to $131.3 million in 2026, as seen in the graph below. Figure 7A-8: Energy Delivery 2025 Budget vs. 2026 Forecast ($ Million) - Regional Operations increases by $4.5 million primarily due to additi...

AI summary Energy Delivery expenses are forecast to rise to $131.3 million in 2026 due to increased staffing, Grid Scale Battery costs, and NSIESO transition impacts. The 2027 forecast aligns with 2026 levels. Regional Operations and Control Centre expenses increase from staffing and operational demands, partially offset by NSIESO-related workforce reductions.

REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 7B Page 1 of 2 p. p. 30
REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 7B Page 1 of 2 2024 Compliance 2024 Compliance Restated TOTAL CORPORATE GROUPS 95,631 - 26 2 - 262 95,897 Head Office 3.56 3.561 Thermal Plants 42,75 42,752...

AI summary The document presents a compliance report for 2024, detailing financial and operational data across various corporate groups and departments, including energy production, asset management, and environmental services. The data includes figures for head office, thermal plants, renewable energy sources, and other operational segments, with some entries showing discrepancies or restatements.

N-72026-2027 GRA Appendix 8A-G -Depreciation Study - Redacted 158 passages
Section 16
adding the age and remaining life. If the probable life of the property is calculated for each year of age, the probable life curve shown in the chart can be developed. The frequency curve presents the number of units retired in each age i...

AI summary The text discusses methods for calculating asset retirement using survivor curves and retirement rate analysis, referencing historical data and the Iowa curves. It is part of a study by Nova Scotia Power Inc. (NSPI) related to asset management and depreciation modeling.

Section 18
Iowa Type Curves The range of survivor characteristics usually experienced by utility and industrial properties is encompassed by a system of generalized survivor curves known as the Iowa type curves. There are four families in the Iowa sy...

AI summary The text describes Iowa Type Curves, a system of generalized survivor curves categorizing utility and industrial property retirement patterns into four families (left, symmetrical, right, origin moded) based on mode location and height relative to average service life. The curves were developed by Iowa State College's Engineering Experiment Station through observational studies, with early classifications published in 1935 as Bulletin 125.

Section 26
60 L0 0 0 25 50 75 100 125 150 175 200 225 250 275 300 Age, Percent of Average Life 50 II-5 Percent Surviving 40 30 20

AI summary The text contains graphical data illustrating asset life and survival rates, with numerical scales and percentages. It includes labels such as 'Age, Percent of Average Life' and 'Percent Surviving,' suggesting analysis of infrastructure or equipment longevity. The reference 'II-5' may indicate a section or page number within the proceeding.

Section 34
wer Inc. Age, Percent of Average Life FIG85(.6<00(75,&$/256 ,2:$7<3(6859,925&859(6 2026-2027 GRA Direct Evidence Appendix 8A Page 17 of 297 100 50 45 R1 R2 R3 R4 R5 90 40 35

AI summary The text includes a figure titled 'Survival Curves' from Appendix 8A of the 2026-2027 GRA Direct Evidence document, page 17 of 297. It appears to depict data related to asset lifespan percentages, with labels R1-R5 and a graph showing aging metrics.

Section 38
Age, Percent of Average Life 50 II-7 Percent Surviving 40 30 20 10 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 0 0 25 50 75 100 125 150 175 200 225 250 275 300 _

AI summary The text contains a graphical representation of 'Age, Percent of Average Life' and 'Percent Surviving' over a range of 0-300, with a redacted section indicating confidential information. The chart appears to illustrate asset aging or survival rates, though specific details are omitted.

Section 39
200 225 250 275 300 _ December 31, 2023 Nova Scotia Power Inc. Age, Percent of Average Life FIG85(.5, +702'$/255,2:$7<3(6859,925&859(6 2026-2027 GRA Direct Evidence Appendix 8A Page 18 of 297 REDACTED (CONFIDENTIAL INFORMATION...

AI summary Redacted table or graph related to Nova Scotia Power Inc. (NSPI), showing data with dates and numerical values, possibly related to asset aging or infrastructure planning. Context includes a reference to 'FIG85' and page numbers from a 2026-2027 GRA Direct Evidence Appendix.

Section 41
Age, Percent of Average Life 75 175 O3 50 O4 25 150 0 20 18 16 14 12 10 8 6 4 2 0 Frequency, Percent for 10 Percent Intervals 125 O1 O2

AI summary The text presents graphical data showing the age and frequency distribution of assets, likely related to infrastructure or equipment, with percentages indicating their distribution across different age intervals.

Section 74
NFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8A Page 35 of 297 PART III. SERVICE LIFE CONSIDERATIONS _ III-1 Nova Scotia Power Inc. December 31, 2023 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence A...

AI summary The document discusses field trips taken in 2024 and 2010 to various locations including transmission substations, wind turbines, biomass plants, and hydroelectric facilities, aimed at understanding the operation and retirement reasons of Nova Scotia Power Inc.'s infrastructure.

Section 156
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 2,944,879,584 360,688 0.0001 0.9999 100.00 0.5 2,866,629,156 515,400 0.0002 0.9998 99.99...

AI summary The text presents a table showing exposure and retirement data over different age intervals, including metrics such as the number of exposures, retirements, and survival percentages. It appears to be related to asset management and aging analysis.

Section 163
ACCOUNT 330.99 HYDRAULIC PRODUCTION PLANT ORIGINAL LIFE TABLE PLACEMENT BAND 1920-2023 EXPERIENCE BAND 1920-2023

AI summary The document presents an original life table for the Hydraulic Production Plant, covering the period from 1920 to 2023, which is part of the asset's historical data and may be relevant for depreciation or asset management purposes.

Section 183
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 128,617,231 0.0000 1.0000 100.00 0.5 128,382,636 0.0000 1.0000 100.00 1.5 127,423,616 104...

AI summary The text presents a table with data on exposures, retirements, and survival rates across different age intervals. It includes values for age intervals, exposures at the beginning of each interval, retirements during the interval, and survival rates. The data seems to be related to asset management or infrastructure planning, tracking changes over time.

Section 202
ACCOUNT 355.00 POLES AND FIXTURES ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1930-2023 EXPERIENCE BAND 1942-2023

AI summary The text presents a continuation of an original life table for poles and fixtures, covering placement bands from 1930 to 2023 and experience bands from 1942 to 2023.

Section 205
.05 75.5 2,249 1,471 0.6540 0.3460 0.02 76.5 778 778 1.0000 0.01 77.5 _ VII-26 Nova Scotia Power Inc. December 31, 2023 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8A Page 87 of 297 ACCOUNT 356.00 OVE...

AI summary The text presents data and tables related to overhead conductors and devices for Nova Scotia Power Inc., including survivor curves and life tables spanning multiple years. The data appears to be part of a technical analysis or reporting process.

Section 210
ACCOUNT 356.00 OVERHEAD CONDUCTORS AND DEVICES ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1929-2023 EXPERIENCE BAND 1942-2023

AI summary The text presents an original life table and an experience band for overhead conductors and devices, spanning from 1929 to 2023 and 1942 to 2023, respectively. These tables likely relate to asset management and infrastructure planning.

Section 212
089 17.16 56.5 13,691 937 0.0684 0.9316 15.59 57.5 5,380 727 0.1351 0.8649 14.53 58.5 12.56 _ VII-29 Nova Scotia Power Inc. December 31, 2023 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8A Page 90 of...

AI summary The text presents data related to account numbers 357.00 and 358.00, which pertain to underground conduit and underground conductors and devices for Nova Scotia Power Inc. The data includes numerical values and a reference to a 'smooth survivor curve,' likely related to asset management or depreciation calculations.

Section 216
ACCOUNT 362.00 STATION EQUIPMENT ORIGINAL LIFE TABLE PLACEMENT BAND 1929-2023 EXPERIENCE BAND 1942-2023

AI summary The text presents original life tables for station equipment, covering placement bands from 1929 to 2023 and experience bands from 1942 to 2023. This data is likely used for asset management and depreciation calculations.

Section 217
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 94,862,802 102,867 0.0011 0.9989 100.00 0.5 94,461,357 267,723 0.0028 0.9972 99.89 1.5 94...

AI summary The text presents a table with data on exposures, retirements, and survival rates across different age intervals, likely related to asset management or infrastructure planning. The table includes metrics such as the number of exposures, retirements during each interval, and survival percentages.

Section 228
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 801,570,643 961,598 0.0012 0.9988 100.00 0.5 761,131,670 1,976,608 0.0026 0.9974 99.88 1....

AI summary The text presents a table with data on exposures, retirements, survival percentages, and other metrics over different age intervals. It outlines the number of exposures, retirements during each interval, and survival ratios, which may relate to asset management or regulatory reporting.

Section 239
ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1925-2023 EXPERIENCE BAND 1942-2023

AI summary The text presents an original life table and an experience band for overhead conductors and devices, spanning from 1925 to 2023 and 1942 to 2023 respectively, indicating historical data on the placement and performance of these assets.

Section 241
067 5.90 56.5 948,508 187,668 0.1979 0.8021 4.76 57.5 760,840 172,620 0.2269 0.7731 3.82 58.5 588,220 139,029 0.2364 0.7636 2.95 59.5 449,191 126,563 0.2818 0.7182 2.25 60.5 322,628 88,517 0.2744 0.7256 1.62 61.5 234,111 72,666 0.3104 0.68...

AI summary The text presents data related to an underground conduit account and mentions a smooth survivor curve, likely in the context of infrastructure planning or asset management for Nova Scotia Power Inc.

Section 243
ACCOUNT 367.00 UNDERGROUND CONDUCTORS AND DEVICES ORIGINAL LIFE TABLE PLACEMENT BAND 1930-2023 EXPERIENCE BAND 1942-2023

AI summary The text presents an original life table for underground conductors and devices, with placement and experience bands spanning from 1930 to 2023. It provides historical data on the lifespan and performance of these assets over time.

Section 244
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 85,297,220 24,783 0.0003 0.9997 100.00 0.5 81,401,583 52,267 0.0006 0.9994 99.97 1.5 78,5...

AI summary The text presents a table with data on exposures, retirements, survival rates, and percentages at different age intervals. It includes values for age intervals, exposures at the beginning of intervals, retirements during intervals, and survival ratios. The data appears to be related to asset management or similar processes.

Section 247
ACCOUNT 367.00 UNDERGROUND CONDUCTORS AND DEVICES ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1930-2023 EXPERIENCE BAND 1942-2023

AI summary The text presents an original life table and experience band for underground conductors and devices, spanning from 1930 to 2023 and 1942 to 2023, respectively, likely used for asset management and infrastructure planning purposes.

Section 248
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 39.5 5,100,957 290,744 0.0570 0.9430 59.51 40.5 4,466,596 205,191 0.0459 0.9541 56.11 41.5 4,...

AI summary The text presents a table showing age intervals, exposures, retirements, and survival rates over time, likely related to asset management or aging infrastructure within a utility context.

Section 250
ACCOUNT 368.00 LINE TRANSFORMERS ORIGINAL LIFE TABLE PLACEMENT BAND 1960-2023 EXPERIENCE BAND 2004-2023

AI summary The text presents an original life table for line transformers placed between 1960 and 2023, with experience data from 2004 to 2023. This data is likely used for asset management and planning purposes.

Section 251
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 444,208,744 1,453,015 0.0033 0.9967 100.00 0.5 401,280,643 2,821,529 0.0070 0.9930 99.67...

AI summary The text presents a table with data on exposures, retirements, and survival rates across different age intervals. It includes metrics such as the number of exposures at the beginning of each interval, retirements during the interval, and survival ratios. This appears to be related to asset management or aging analysis.

Section 254
ACCOUNT 368.00 LINE TRANSFORMERS ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1960-2023 EXPERIENCE BAND 2004-2023

AI summary The text presents a continuation of an original life table for transformers placed between 1960 and 2023, alongside an experience band for the period 2004 to 2023.

Section 267
ACCOUNT 390.10 STRUCTURES AND IMPROVEMENTS ORIGINAL LIFE TABLE PLACEMENT BAND 1930-2023 EXPERIENCE BAND 1935-2023

AI summary The document presents an original life table for structures and improvements, covering placement bands from 1930 to 2023 and experience bands from 1935 to 2023. This data likely relates to asset management and depreciation calculations.

Section 275
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 140,663,419 25,373 0.0002 0.9998 100.00 0.5 140,204,788 62,744 0.0004 0.9996 99.98 1.5 13...

AI summary The text presents a table with data on exposures, retirements, survival rates, and percentages over various age intervals. It includes metrics such as the number of exposures at the beginning of each interval, retirements during the interval, and survival ratios. This data may be related to asset management or infrastructure planning.

Section 277
81 0.9619 72.28 36.5 7,813,684 473,952 0.0607 0.9393 69.52 37.5 6,664,932 430,692 0.0646 0.9354 65.31 38.5 5,447,128 231,563 0.0425 0.9575 61.09 _ VII-68 Nova Scotia Power Inc. December 31, 2023 REDACTED (CONFIDENTIAL INFORMATION REMOVED)...

AI summary The text presents a table with numerical data related to a life table for structures and improvements, likely related to asset management or depreciation calculations. The data includes placement and experience bands, along with associated values. The document is part of a proceeding involving Nova Scotia Power Inc. and includes redacted confidential information.

Section 278
ACCOUNT 390.10 STRUCTURES AND IMPROVEMENTS ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1960-2023 EXPERIENCE BAND 2004-2023

AI summary The text presents a continuation of an original life table and an experience band for structures and improvements placed between 1960 and 2023, with data spanning from 2004 to 2023.

Section 290
COUNT 397.10 COMMUNICATION EQUIPMENT - SCADA EQUIPMENT ORIGINAL LIFE TABLE PLACEMENT BAND 1979-2023 EXPERIENCE BAND 1989-2023

AI summary The document presents original life tables for communication equipment, specifically SCADA equipment, covering placement bands from 1979 to 2023 and experience bands from 1989 to 2023.

Section 291
AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0.0 29,718,253 504 0.0000 1.0000 100.00 0.5 32,807,072 85,615 0.0026 0.9974 100.00 1.5 29,014...

AI summary The text presents a table with data on exposures, retirements, and survival percentages across different age intervals, likely related to asset management or similar regulatory processes. The data shows the number of exposures, retirements during each interval, and survival ratios, indicating a structured analysis of aging and retirement trends.

Section 482
(1) (2) (3) (4) (5) (6) (7) LINGAN 1 INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -16

AI summary The text presents data related to the Lingan 1 asset, including its interim survivor curve, probable retirement year, and net salvage percentage. This information is likely used for asset management and financial planning purposes.

Section 488
) (2) (3) (4) (5) (6) (7) LINGAN 3-4 INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -16

AI summary The text presents data related to the Lingan 3-4 interim survivor curve, with details including probable retirement year and net salvage percentage, indicating asset management and depreciation considerations.

Section 492
(2) (3) (4) (5) (6) (7) LINGAN COMMON INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -16

AI summary The text presents data related to the Lingan Common interim survivor curve, indicating a probable retirement year of 12-2049 and a net salvage percentage of -16. This information is likely related to asset management or financial planning for long-term infrastructure.

Section 508
(1) (2) (3) (4) (5) (6) (7) TRENTON 5 INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2029 NET SALVAGE PERCENT.. -5

AI summary The text provides data related to an interim survivor curve, probable retirement year, and net salvage percentage for an asset, likely related to infrastructure or equipment planning.

Section 512
(1) (2) (3) (4) (5) (6) (7) TRENTON 6 INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2029 NET SALVAGE PERCENT.. -5

AI summary The text provides data on a power generation asset, including its location, retirement year, and salvage value. The information appears to be from a technical or financial assessment related to asset management.

Section 520
(2) (3) (4) (5) (6) (7) TUFTS COVE 1 INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -11

AI summary This text provides data on the TUFTS COVE 1 asset, including its interim survivor curve, probable retirement year, and net salvage percentage. The information suggests the asset's expected lifespan and residual value.

Section 532
,460.55 37,268,119 34,254,208 76,529,854 3,464,500 TUFTS COVE COMMON INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -11

AI summary The text contains numerical data and technical terms related to infrastructure planning and asset management, including a probable retirement year and net salvage percentage for an asset.

Section 536
(2) (3) (4) (5) (6) (7) TUFTS COVE COMMON INTERIM SURVIVOR CURVE.. IOWA 65-L1 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -11

AI summary The text presents data related to a turbine at Tufts Cove Common, including its interim survivor curve, probable retirement year, and net salvage percentage. This information is likely used for asset management and planning purposes.

Section 558
(2) (3) (4) (5) (6) (7) BLACK RIVER INTERIM SURVIVOR CURVE.. IOWA 100-L0.5 PROBABLE RETIREMENT YEAR.. 12-2066 NET SALVAGE PERCENT.. -86

AI summary The text presents data related to a power generation asset, including its name, interim survivor curve, probable retirement year, and net salvage percentage, indicating the asset's expected decommissioning and residual value.

Section 562
(2) (3) (4) (5) (6) (7) BLACK RIVER INTERIM SURVIVOR CURVE.. IOWA 100-L0.5 PROBABLE RETIREMENT YEAR.. 12-2066 NET SALVAGE PERCENT.. -86

AI summary The text presents data related to the Black River asset, including its interim survivor curve, probable retirement year, and net salvage percentage. This information is relevant for asset management and financial planning.

Section 589
(2) (3) (4) (5) (6) (7) SHEET HARBOUR INTERIM SURVIVOR CURVE.. IOWA 100-L0.5 PROBABLE RETIREMENT YEAR.. 12-2066 NET SALVAGE PERCENT.. -64

AI summary The text presents a sheet harbour interim survivor curve with details including a probable retirement year of 12-2066 and a net salvage percent of -64. This data appears to be related to asset management or infrastructure planning.

Section 606
,833.30 87,448,851 80,739,861 209,479,939 3,964,699 ANNAPOLIS TIDAL INTERIM SURVIVOR CURVE.. IOWA 100-L0.5 PROBABLE RETIREMENT YEAR.. 12-2066 NET SALVAGE PERCENT.. -79

AI summary The text provides numerical data related to a tidal project, including financial figures and details about the Annapolis Tidal project, such as a probable retirement year and net salvage percentage. These figures may relate to asset management or infrastructure planning.

Section 614
) (2) (3) (4) (5) (6) (7) BURNSIDE INTERIM SURVIVOR CURVE.. IOWA 75-S0.5 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -10

AI summary The text presents data related to an interim survivor curve for BURNSIDE, including details such as the IOWA 75-S0.5, probable retirement year of 12-2049, and a net salvage percentage of -10. This information likely pertains to asset management or infrastructure planning.

Section 618
(1) (2) (3) (4) (5) (6) (7) TUSKET INTERIM SURVIVOR CURVE.. IOWA 75-S0.5 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -11

AI summary The text provides data related to a TUSKET interim survivor curve, including a probable retirement year of 12-2049 and a net salvage percent of -11. This appears to be technical information related to asset management or infrastructure planning.

Section 625
) (3) (4) (5) (6) (7) TUFTS COVE CT UNIT 4 INTERIM SURVIVOR CURVE.. IOWA 30-L0.5 PROBABLE RETIREMENT YEAR.. 12-2049 NET SALVAGE PERCENT.. -13 2003 31,854,405.61 21,842,056 7,808,184 28,187,295 13.28 2,122,537 2007 57,275.75 35,454 12,674 5...

AI summary The text presents financial and operational data for Tufts Cove CT Units 4 and 5, including values for various years, salvage percentages, and retirement years. The data includes figures such as net salvage percent and probable retirement year, indicating long-term planning and asset management considerations.

Section 781
Ian Walker Shem Evans Date Rev. Status Prepared By Checked By Approved By H374195-0000-21A-249-0001, Rev. 0 Page i © Hatch 2024 All rights reserved, including all rights relating to the use of this document or its contents. REDACTED (CONFI...

AI summary This document is a Hydroplant Asset Study Update prepared by Hatch Ltd. for Nova Scotia Power Inc. (NSPI) regarding the decommissioning of hydro systems. It includes a disclaimer stating that the report is for internal use only and must not be shared without prior consent.

Section 789
ONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B Page 5 of 33 Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024 Executive Summary Hatch was retain...

AI summary Nova Scotia Power Inc. (NSPI) commissioned Hatch to update the 2018 Class 5 cost estimate for decommissioning all of NSPI’s hydroelectric assets. The update incorporates lessons from recent decommissioning projects and escalates the 2018 estimate to 2024 dollars. Key cost categories include infrastructure removal, environmental studies, and sediment management.

Section 791
H374195-0000-21A-249-0001, Rev. 0 Page ES-1 © Hatch 2024 All rights reserved, including all rights relating to the use of this document or its contents. REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B...

AI summary Hatch was retained by Nova Scotia Power Inc. (NSPI) to update a 2018 hydro asset study, revalidating baseline assumptions and updating cost estimates from 2018 to 2024 dollars, taking into account decommissioning works such as those at Roseway.

Section 792
y “Hydro System Decommissioning Cost Estimate for Nova Scotia Power Inc’s Control Structures” [1] resulted in the generation of cost estimates which included:  Infrastructure removal costs, including powerhouse, substation and equipment r...

AI summary The document discusses the decommissioning cost estimate for Nova Scotia Power Inc.'s hydroelectric facilities, including infrastructure removal, environmental costs, and sediment management. An updated estimate was conducted in 2024, building on the 2018 study by Hatch.

Section 794
entailed removal of the infrastructure, planting grasses and shrubs to re-vegetate newly exposed reservoir/riverbanks and allowances for slope stabilization. For the 2018 study, infrastructure removal costs were estimated using a combinati...

AI summary The document discusses the removal of infrastructure and re-vegetation efforts at various sites, including the use of previous decommissioning estimates and empirical methods to determine infrastructure removal costs. Hatch updated the empirical relationship for removal costs based on recent projects and public data.

Section 800
H374195-0000-21A-249-0001, Rev. 0 Page 3 © Hatch 2024 All rights reserved, including all rights relating to the use of this document or its contents. REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B Pag...

AI summary This document provides an update on the Hydroplant Asset Study and Hydro System Decommissioning Study by Nova Scotia Power Inc. as of December 11, 2024. It is part of the evidence submitted for the 2026-2027 GRA proceeding.

Section 801
Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024

AI summary This document provides an update on the Hydroplant Asset Study and the Hydro System Decommissioning Study by Nova Scotia Power Inc. as of December 11, 2024.

Section 806
H374195-0000-21A-249-0001, Rev. 0 Page 5 © Hatch 2024 All rights reserved, including all rights relating to the use of this document or its contents. REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B Pag...

AI summary The document discusses the calculation of composed escalation factors using the Producer Price Indexes (PPIS) for the year 2024, based on a formula that considers the relative weighting of each component. It also outlines the index series used for decommissioning projects in Canada, including workforce and construction equipment.

Section 812
et’s Bay, and Tusket. The 2018 infrastructure removal cost for Mersey was updated based on a re-evaluation of the comprehensive study used in the 2018 report. Roseway decommissioning costs provided by NSPI were based on actuals up to June...

AI summary The text discusses updates to infrastructure removal costs for Mersey and Roseway, including the use of projected decommissioning costs and adjustments based on 2024 factors. Hatch confirmed with NSPI that planned changes to hydroelectric assets since the 2018 report were completed.

Section 813
D (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B Page 15 of 33 Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024 No major infrastructure was d...

AI summary The 2026-2027 GRA Direct Evidence Appendix 8B discusses an update to the Hydroplant Asset Study, noting no major infrastructure decommissioning and only minor changes since the previous study. Environmental costs were estimated using a matrix based on structure size and environmental concern scores, escalated to 2024 dollars.

Section 820
For the Annapolis, Gaspereau, St. Margaret’s Bay and Tusket systems, Hatch had performed decommissioning estimates for environmental costs as part of other project scopes. These estimates were site specific and likely more accurate than ap...

AI summary The document discusses environmental cost estimates for decommissioning four systems (Annapolis, Gaspereau, St. Margaret’s Bay, and Tusket) based on site-specific data from a 2018 study, which were escalated to 2024 CAD using a 1.23 Canada escalation factor. Table 4-2 provides the adjusted costs for each system.

Section 822
Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024

AI summary This document provides an update on the Hydroplant Asset Study and the Hydro System Decommissioning Study by Nova Scotia Power Inc. as of December 11, 2024.

Section 826
H374195-0000-21A-249-0001, Rev. 0 Page 12 © Hatch 2024 All rights reserved, including all rights relating to the use of this document or its contents. REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B Pa...

AI summary The document provides an update on the hydroplant asset study and the estimated costs for fully decommissioning Nova Scotia Power Inc.'s hydroelectric system as of 2024.

Section 831
Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024

AI summary This document provides an update on the Hydroplant Asset Study and the Hydro System Decommissioning Study by Nova Scotia Power Inc. as of December 11, 2024.

Section 835
Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024

AI summary This document provides an update on the Hydroplant Asset Study and the Hydro System Decommissioning Study by Nova Scotia Power Inc. as of December 11, 2024.

Section 838
“% of Pansic Allowance for Sediment Management” found in Table 4-3 and multiplying by the 48% established by Pansic et al. [2]. 1 Comprehensive for Gaspereau System only. H374195-0000-21A-249-0001, Rev. 0 Page 15 © Hatch 2024 All rights re...

AI summary The text references a calculation involving the 'Pansic Allowance for Sediment Management' and mentions a hydroplant asset study update by Nova Scotia Power Inc. related to the decommissioning of a hydro system as of December 11, 2024.

Section 839
Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024

AI summary This document provides an update on the Hydroplant Asset Study and the Hydro System Decommissioning Study by Nova Scotia Power Inc. as of December 11, 2024.

Section 844
Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024

AI summary This document provides an update on the Hydroplant Asset Study and the Hydro System Decommissioning Study by Nova Scotia Power Inc., dated December 11, 2024.

Section 848
105.01 110.26 99.78 1.26 2021 34.99 103.06 136.27 120.73 101.74 1.15 H374195-0000-21A-249-0001, Rev. 0 Page A-1 © Hatch 2024 All rights reserved, including all rights relating to the use of this document or its contents. REDACTED (CONFIDEN...

AI summary The document presents data related to a hydroplant asset study update, including workforce, construction equipment, fuel, structures, concrete, and composite factors for the years 2022 to 2024. This information is part of a broader decommissioning study for Nova Scotia Power Inc.

Section 853
D (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8B Page 25 of 33 Nova Scotia Power Inc. - Hydroplant Asset Study Update Hydro System Decommissioning Study Update - December 11, 2024 Composite Year Workforce Cons...

AI summary The document presents a Hydro System Decommissioning Study Update from Nova Scotia Power Inc., including workforce, construction equipment, fuel, structures, concrete, and composite factor data for the years 2020 to 2024.

Section 880
(ft) Ht. (m) Length (m) (benchmarking) - Removal Cost Shoreline Length Decommissionin Decommissionin Comments (ft) Core (ft) (ft) Elevation (ft) ($2018) Factored ($2024) Factored Canals (m2) (ft) (2024) (2018) (2024) (ft) (Y/N) assume Norm...

AI summary The text presents a table with columns related to height, length, elevation, removal costs, shoreline length, and decommissioning costs. It includes benchmarking, factoring years (2018 and 2024), and comments. The table seems to be related to infrastructure planning or asset management.

Section 884
759,395 648,098 1,055,870 75,878 21 included above 363,000 446,490 1,011,098 BLACK RIVER Little River Lake Wing Dam Impervious Soil Headpond 13 700 620.7 620.7 700 4.0 213.4 608 1 570,243 486,668 847,110 75,878 18 included above included a...

AI summary The text presents numerical data related to various dams and their associated metrics, including capacity, storage, and other technical specifications. The data appears to be part of a larger dataset or report, possibly related to infrastructure planning or asset management.

Section 886
revegetated BLACK RIVER Hollow Bridge Penstock Unit 1 Fiberglass Y 8.0 1622.5 38 243,374 243,374 299,350 NA NA NA 243,374 BLACK RIVER Hollow Bridge Penstock Steel 230.0 34,500 34,500 42,435 NA NA NA 34,500

AI summary The text presents data on two penstock units at the Black River site, including details such as material type, length, and cost figures. The information appears to be technical and relates to infrastructure planning or asset management.

Section 902
(ft) Ht. (m) Length (m) (benchmarking) - Removal Cost Shoreline Length Decommissionin Decommissionin Comments (ft) Core (ft) (ft) Elevation (ft) ($2018) Factored ($2024) Factored Canals (m2) (ft) (2024) (2018) (2024) (ft) (Y/N) assume Norm...

AI summary The text appears to be a table or data sheet containing information related to infrastructure planning, including measurements, costs, and decommissioning details. The content involves benchmarking, removal costs, and elevation data, which may be relevant to asset management and infrastructure planning.

Section 942
(ft) Ht. (m) Length (m) (benchmarking) - Removal Cost Shoreline Length Decommissionin Decommissionin Comments (ft) Core (ft) (ft) Elevation (ft) ($2018) Factored ($2024) Factored Canals (m2) (ft) (2024) (2018) (2024) (ft) (Y/N) assume Norm...

AI summary The text presents a table containing data related to infrastructure, including height, length, elevation, removal costs, and decommissioning costs, with benchmarking and factoring based on years 2018 and 2024. It includes columns for shoreline length, canals, and comments, suggesting a focus on infrastructure planning and asset management.

Section 997
included above NA NA NA WRECK COVE D-6-1 McLeod Brook Earthfill (None) Storage 36 1,609 1,287 1,286 unknown 1,609 11.0 490.4 1,251 2 4,381,012 8,594,199 9,340,401 27,353 51 included above 3,520,000 4,329,600 9,691,359 WRECK COVE D-6-2 Glac...

AI summary The text presents data on three different storage sites (Wreck Cove D-6-1, D-6-2, and D-7 McMillian Flowage) including details such as location, material type, storage capacity, and various numerical metrics. The data appears to be related to infrastructure planning and asset management.

Section 1003
22,500 22,500 27,675 NA NA NA 22,500 WRECK COVE Penstock Unit 2 N included above NA NA NA 66,247,000 124,192,000 131,446,000 0 45,485,000 55,946,550 136,225,000 187,392,550 Notes: Ten Mile Lake Dam in the Sheet Harbour Hydro System was rem...

AI summary The document outlines the Hydro Asset Archaeological Program's revised costing for 2024, submitted by Boreas Heritage Consulting Inc. to Nova Scotia Power Incorporated. It includes notes about decommissioned dams in various hydro systems and mentions a redacted appendix related to direct evidence for 2026-2027.

Section 1014
ture archaeological requirements. This directive was provided in an email to Boreas Heritage by NSPI on September 20, 2018. 2.4 Assumptions Related to Methodology a) Asset Assessment As directed by NSPI, Boreas Heritage strongly recommends...

AI summary The text discusses archaeological requirements related to asset assessment, emphasizing the need for CCTH approval of methods and assumptions from the Hydro Asset Archaeology Costing Study before fieldwork or on-site development activities, as directed by NSPI.

Section 1015
missioning. NSPI and Boreas Heritage have made the following assumptions when considering the estimated costs associated with the Hydro Asset Archaeology Costing Study: • Dams classified as small in the Asset List have been attributed a 20...

AI summary NSPI and Boreas Heritage have outlined assumptions regarding the estimated costs for the Hydro Asset Archaeology Costing Study, including impact areas for dams based on their size and construction type.

Section 1017
• Dams constructed with any material, AND which are constructed on bedrock, as provided by NSPI in the Asset List, have been assumed to not require additional archaeological assessment as any potential cultural resources would not be prese...

AI summary The document outlines assumptions made by NSPI regarding archaeological assessments for dams and canals, specifying conditions under which additional assessments may be required and clarifying that certain assets are assumed to be freeboard or left in place.

Section 1018
sumed to be clear of any additional archaeology requirements, unless recommendations were made in the original report for additional archaeological work. Boreas Heritage strongly cautions this assumption may change following review by CCTH...

AI summary The report discusses the need for consultation with CCTH and Mi’kmaw communities before decommissioning NSPI assets, noting that such consultations may impact cost estimates. Archaeological and environmental considerations are also highlighted as potential factors affecting the final costs.

Section 1043
removal. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Lake Mulgrave Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Lake Mulgr...

AI summary The text discusses the archaeological assessment costs for the Lake Mulgrave area, noting its high potential for archaeological resources. It mentions the need for reconnaissance due to previous lack of investigation and the use of historic data for shoreline reconstruction.

Section 1045
d in the 2018 Hydro Asset Archaeology Program. The following recommendations and costings for the Black River Hydro System are based on the results of that study and are summarized in Table 5. Table 5. Summary of costings for individual as...

AI summary The text discusses the 2018 Hydro Asset Archaeology Program, focusing on the Black River Hydro System. It outlines the costings for various asset locations, including reconnaissance, shovel testing, excavation, and monitoring, as summarized in Table 5. The information is part of a confidential appendix from a regulatory proceeding.

Section 1053
sing historic air photos (1945). It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Salmontail Lake Main Dam Type: Small Dam; Earth/Rockfill; The results of the 2018 Hyd...

AI summary The text discusses archaeological assessments for several hydro assets in Nova Scotia, including Salmontail Lake Main Dam, Salmontail Lake, and Hatchard Lake Dam. Each location is assessed for potential archaeological impacts, with recommendations for reconnaissance and monitoring. Costs for these assessments are mentioned but not quantified.

Section 1064
REDACTED 2026-2027 Direct Evidence Appendix 8C Page 43 of 129 Asset Location: Toms Lake Wing Dam Type: Medium Dam; Earthfill embankment The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Toms Lake Wing...

AI summary The text discusses archaeological assessments required for three locations: Toms Lake Wing Dam, Toms Lake, and Dickie Brook Pipeline. The 2018 Hydro Asset Archaeology Study indicates high potential for archaeological resources at Toms Lake Wing Dam and Toms Lake, particularly when water levels are lowered. Archaeological reconnaissance is recommended for these sites, with estimated costs provided.

Section 1093
the previous study was not sufficient with respect to decommissioning, additional assessment may be required, which would increase estimated costs. Asset Location: Lower Lake Falls Headpond Type: Dewatering The results of the 2018 Hydro As...

AI summary The text discusses archaeological assessments at two locations: Lower Lake Falls Headpond and Upper Lake Falls Dam Plant and Spillway. The 2018 study indicated high potential for archaeological resources at Lower Lake Falls Headpond, and additional assessment may be required, increasing estimated costs. The Upper Lake Falls Dam Plant and Spillway is described in terms of its construction type and location.

Section 1098
ing ground impacts are confined to the existing dam footprint. Any potential disturbance outside of the assumed impact area may require further archaeological assessment resulting in additional costs. It is estimated that the archaeologica...

AI summary The text discusses archaeological assessments required for the Jordan Lake and Nictaux Hydro System projects, highlighting potential costs and the need for further investigation due to high archaeological potential. It also outlines the location and components of the Nictaux Hydro System.

Section 1102
TION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 70 of 129 Asset Location: Nictaux Headpond Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Nictaux Headpond exhibits High Potential for...

AI summary The text discusses archaeological assessments for three hydro assets in Nova Scotia: Nictaux Headpond, Trout Lake Spillway, and Trout Lake. Each site shows high potential for archaeological resources, and no prior investigations have been conducted. Recommended actions include reconnaissance and excavation, with estimated costs provided for each assessment.

Section 1104
oreline of Scragg Lake was reconstructed using bathymetry data provided by NSPI. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: McGill Lake Dam Type: Small Dam; Eart...

AI summary The text discusses archaeological assessments for two hydro assets: Scragg Lake and McGill Lake Dam. The assessments are based on bathymetry data and historical records, with estimated costs for the evaluations. The area around McGill Lake Dam was previously assessed, but no cultural materials were found, and further reconnaissance is recommended.

Section 1105
nstructed using bathymetry data provided by NSPI and historic air photos (1945). It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Curl Hole Dam and Spillways Type: Sma...

AI summary The text discusses an archaeological assessment near Curl Hole Dam and Spillways, noting the area's high potential for impacting archaeological resources. Previous studies identified moderate potential, but testing proved negative. The recommended action is archaeological reconnaissance, with estimated costs provided. A separate section mentions Molly Upsim Lake, categorized as a dewatering asset.

Section 1106
MATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 73 of 129 Asset Location: Molly Upsim Lake Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Molly Upsim Lake exhibits High Potential fo...

AI summary The text discusses the Molly Upsim Lake and Paradise Hydro System, highlighting the potential for archaeological resources at Molly Upsim Lake and the infrastructure components of the Paradise Hydro System. It notes the need for archaeological reconnaissance and provides details about the hydro system's location and assets.

Section 1109
mpacting archaeological resources. REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 76 of 129 As the dam is constructed on bedrock there is Low Potential for impacting archaeological resources...

AI summary The text discusses the potential impact of constructing or modifying dams on archaeological resources at various locations, including Saunders Pond, Roxbury Main and Wing Dams, and Paradise Lake Dam. It highlights the need for archaeological reconnaissance and provides estimated costs for assessments at each site.

Section 1115
stimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Governor Lake Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Governor Lake exhibits Hig...

AI summary The text discusses archaeological assessments for Governor Lake and Seloam Lake Dam, noting high potential for archaeological resources and recommending reconnaissance and monitoring. Estimated costs for these assessments are mentioned, though specific figures are redacted.

Section 1117
NFORMATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 83 of 129 Asset Location: Anti Dam Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Anti Dam exhibits High Potential for archaeolog...

AI summary The text discusses archaeological considerations at Anti Dam and Marshall Falls Main Dam and Spillway, highlighting the potential for archaeological resources at Anti Dam and the need for reconnaissance. It also notes the use of bathymetry data provided by NSPI for shoreline reconstruction.

Section 1119
MOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 84 of 129 Asset Location: Marshall Falls Reservoir Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Marshall Falls Reservoir exhibits High Poten...

AI summary The text discusses archaeological assessments required for three hydroelectric assets in Nova Scotia: Marshall Falls Reservoir, Malay Falls Dam, and Malay Falls Plant. Each location exhibits high potential for impacting archaeological resources, and assessments are recommended to ensure proper identification and preservation of sites.

Section 1121
ent can be undertaken at a cost of plus applicable taxes. Asset Location: Ruth Falls Dam and Spillway Type: Small Dam; Earthfill embankment; Constructed on bedrock The results of the 2018 Hydro Asset Archaeology Study indicate that area su...

AI summary The text discusses the archaeological assessment required for the decommissioning of the Ruth Falls Dam and Spillway, noting that previous studies identified high potential for archaeological resources, and that additional assessment may be needed if the decommissioning affects unassessed areas.

Section 1122
EMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 86 of 129 Asset Location: Ruth Falls Plant Type: Plant/Powerhouse The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Ruth Falls Plant exhibit...

AI summary The text discusses the need for archaeological assessments at the Ruth Falls Plant and Ruth Falls Reservoir due to high potential for impacting archaeological resources. It outlines the recommended actions, including reconnaissance and excavation, and provides estimated costs for the assessments.

Section 1125
can be undertaken at a cost of plus applicable taxes. Asset Location: Weymouth Falls Dam and Spillway Type: Large Dam; Earthfill; Spillway constructed on bedrock The results of the 2018 Hydro Asset Archaeology Study indicate that area surr...

AI summary The text discusses archaeological assessments required for three different assets in Nova Scotia: Weymouth Falls Dam and Spillway, Weymouth Falls, and Sissiboo Main Dam and Plant. Each site is identified as having high potential for impacting archaeological resources, with no prior investigations conducted. The recommended actions include archaeological reconnaissance and excavation, with estimated costs provided.

Section 1126
perty data (Property Online). It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Sissiboo Main Dam and Plant The results of the 2018 Hydro Asset Archaeology Study indica...

AI summary The document outlines archaeological assessments required for various hydroelectric assets, including the Sissiboo Main Dam, Sissiboo Falls, and Grand Lake Spillways. These assessments involve reconnaissance, shovel testing, and excavation due to high archaeological potential. Estimated costs are noted, though specific figures are redacted.

Section 1127
essment can be undertaken at a cost of plus applicable taxes. Asset Location: Grand Lake Spillways Type: Spillway; Rockfill Spillway; Timber The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Grand Lak...

AI summary The text discusses archaeological assessments for several hydro assets in Grand Lake, including spillways and a wing dam. The assessments are recommended due to high potential for impacting archaeological resources, with estimated costs provided for each location.

Section 1128
apping and air photos (1945) could not detect a significant change in shoreline. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Fourth and Fifth Lake Main Dam Type:...

AI summary The text discusses archaeological assessments for three dam sites in Nova Scotia, including the Fourth and Fifth Lake Main Dam and Wing Dams 1 and 2. It highlights the varying potential for impacting archaeological resources and outlines recommended actions for each site, along with estimated costs for the assessments.

Section 1129
REDACTED 2026-2027 Direct Evidence Appendix 8C Page 92 of 129 Asset Location: Fourth and Fifth Lake Wing Dam 2 Type: Medium Dam; Earthfill The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Fourth and...

AI summary The document discusses archaeological assessments for several hydroelectric assets, including Fourth and Fifth Lake Wing Dams 2 and 3, and Musquash Dam. It notes the potential impact on archaeological resources and outlines recommended actions, such as reconnaissance and monitoring, along with estimated costs.

Section 1133
Freeboard Dam (Wing Dam 4) REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 96 of 129 The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Five Mile Dam and...

AI summary The text discusses archaeological assessments required for decommissioning projects at Freeboard Dam (Wing Dam 4) and Five Mile Lake, noting high potential for impacting archaeological resources. It also mentions the need for reconnaissance at Mack Lake Main Dam, with estimated costs provided for the assessments.

Section 1138
x 8C Page 99 of 129 reconnaissance of the lakeshore. The shoreline of Big Indian Lake was reconstructed using bathymetry data provided by NSPI, property data (Property Online) and historic mapping. It is estimated that the archaeological a...

AI summary The text discusses archaeological assessments required for the lakeshore reconstruction of Big Indian Lake and the Wrights Lake Dam. It outlines previous studies, permits, and potential additional costs if further assessments are needed due to decommissioning activities.

Section 1149
dy was not sufficient with respect to decommissioning, additional assessment may be required, which would increase estimated costs. Asset Location: Mill Lake Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate t...

AI summary The text discusses archaeological assessments required for decommissioning activities at Mill Lake and Tidewater Powerhouse. Both locations show high potential for archaeological resources, and further investigation is needed, with associated costs estimated but not fully disclosed.

Section 1150
MATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 106 of 129 Asset Location: Tidewater Pipeline Type: Pipeline The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Tidewater Pipeline ex...

AI summary The text discusses the archaeological assessment of the Tidewater Pipeline area, noting low potential for impacting archaeological resources based on previous studies. It also mentions the estimated cost of the assessment and the possibility of additional costs if the previous study is deemed insufficient for decommissioning.

Section 1157
a provided by NSPI and property data (Property Online). It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Mink Lake Dam Type: Small Dam; Rockfill Timber crib; Construct...

AI summary The text discusses archaeological assessments required for the Mink Lake Dam and Mink Lake Dewatering asset. It mentions previous studies, the need for further assessment on the west side of the dam, and potential additional costs if prior studies are deemed insufficient.

Section 1158
was not sufficient with respect to decommissioning, additional assessment may be required, which would increase estimated costs. Asset Location: Mink Lake Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that...

AI summary The text discusses the potential for archaeological resources at Mink Lake and the Wreck Cove Hydro System, noting the need for additional assessments due to decommissioning. It outlines the location, type of activity, and estimated costs for archaeological evaluations, referencing studies and system details.

Section 1160
nt with respect to decommissioning, additional assessment may be required, which would increase estimated costs. Asset Location: D1 – Cheticamp Flowage Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Ch...

AI summary The document discusses archaeological assessments required for two hydro assets in Nova Scotia, D1 – Cheticamp Flowage and D2 – Ingonish 1. Both locations have high potential for archaeological resources, and assessments are recommended to evaluate potential impacts.

Section 1161
urrounding the dam. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: D2 – Ingonish 1 Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate th...

AI summary The text discusses archaeological assessments for several hydro assets in Nova Scotia, including Ingonish 1 and Ingonish 2. It notes the high potential for archaeological resources in these areas and outlines recommended actions such as reconnaissance, shovel testing, and excavation. Costs for these assessments are mentioned but not quantified.

Section 1163
ufficient with respect to decommissioning, additional assessment may be required, which would increase estimated costs. Asset Location: D4 – Gisborne Flowage Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate t...

AI summary The document discusses archaeological assessments required for decommissioning activities at two sites in Nova Scotia: D4 – Gisborne Flowage and D7 – McMillan Flowage. The 2018 Hydro Asset Archaeology Study indicates a high potential for archaeological resources at D4, while a previous study found low potential at D7. Additional assessments may be needed if initial studies are deemed insufficient.

Section 1164
ufficient with respect to decommissioning, additional assessment may be required, which would increase estimated costs. Asset Location: D7 – McMillan Flowage Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate t...

AI summary The text discusses archaeological assessments required for several hydroelectric assets in Nova Scotia, including McMillan Flowage, D5 and D6 Dams, and Gisborne Plant. These assessments are necessary due to the high potential for archaeological resources and the lack of prior investigations. Costs for these assessments are estimated but not fully disclosed.

Section 1165
dam footprint. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Gisborne Plant Type: Plant/Powerhouse The results of the 2018 Hydro Asset Archaeology Study indicate th...

AI summary The document outlines the need for archaeological assessments at several hydroelectric assets in Nova Scotia, including the Gisborne Plant, D8-1-D8-7 and Wing Dams, and D9, D10. The assessments are recommended due to potential impacts on archaeological resources, with estimated costs provided for each location.

Section 1166
idence Appendix 8C Page 119 of 129 Asset Location: D9, D10 Type: Medium Dam; Earthfill; Spillway constructed on bedrock (D9) Medium Dam; Earthfill (D10) The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding t...

AI summary The 2018 Hydro Asset Archaeology Study indicates high potential for archaeological resources near D9 and D10 dams, Wreck Cove Flowage, and South Lake Dam. No prior investigations were conducted, and recommended actions include archaeological reconnaissance, excavation, and monitoring. Costs for these assessments are estimated but not fully specified.

Section 1168
ounding the dam. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: D11-3 Dam Type: Small Dam; Rockfill The results of the 2018 Hydro Asset Archaeology Study indicate th...

AI summary The text discusses the need for archaeological assessments at two dam sites (D11-3 Dam and Surge Lake) due to their high potential for impacting archaeological resources. The recommended actions include reconnaissance and monitoring, with estimated costs provided.

Section 1186
int Aconi Trenton Tuft’s Cove Gas Turbine Sites Burnside Tuft’s Cove LM6000 with Waste Heat Recovery Steam Power Plant Tusket Victoria Junction Marine Terminal and Associated Infrastructure Point Tupper International Coal Port Sydney Trans...

AI summary This document outlines an update to the remediation study for 16 NSPI power production sites, including gas turbine, marine terminal, and wind sites, to reflect current conditions, costs, and regulatory requirements as of 2024.

Section 1188
during this study. Reference was made to existing reports only. Obtaining budgetary estimates from third parties. Estimated costs were based on experience and judgement of evaluators. The framework for demolition and remediation of the sit...

AI summary The text outlines the assumptions and methodology used in estimating the costs for the demolition and remediation of industrial sites, referencing the CCME guidelines and noting the exclusion of certain factors like salvage value and sampling for hazardous materials.

Section 1190
. 2 Methodology The CCME National Guidelines for the Decommissioning of Industrial Sites, Article 3.2 (CCME, 1991) provides the following requirements for decommissioning an industrial site: 1. development of a decommissioning plan in conj...

AI summary The document outlines the methodology for decommissioning an industrial site based on the CCME National Guidelines. Key steps include developing a decommissioning plan, removing structures, managing contaminated materials, and ensuring long-term environmental protection. NSPI is assumed to retain ownership of the site.

Section 1191
ensure continued integrity; and 9. submission to the applicable regulatory agency, and other required jurisdictions, of a report confirming that decommissioning and cleanup has been completed. The CCME Guidelines provide a description of t...

AI summary The document outlines the process for decommissioning and remediation of NSPI power production sites, referencing the CCME Guidelines and Nova Scotia Environment Contaminated Sites Regulations (CSR). It discusses the evaluation of contamination levels and the development of probable cost estimates for decommissioning.

Section 1192
etailed Decommissioning Opinion of Probable Cost). The Detailed Opinion of Probable Cost consists of line items developed in 2010 and is consistent with the NSPI plant system Work Breakdown Structure. 2.1 Cost Categories Revised probable c...

AI summary The document outlines the methodology for estimating the probable costs of decommissioning NSPI power production sites, including the use of updated price indices and industry benchmarks, as well as the classification of estimates based on AACE guidelines.

Section 1196
at the variation in such numbers could be significant. Also, the conditions and state of repair of the equipment at the wind farms was not evaluated as part of this study. 2.5.3 Air Monitoring The estimates have considered daily rates for...

AI summary The document discusses variations in numbers related to equipment conditions at wind farms and outlines air monitoring costs during decommissioning. It includes daily rates for perimeter and worker protection air monitoring based on recent local project experiences. Environmental reports and site remediation cost summaries are also referenced.

Section 1237
$ - 77 Plant Operating Equipment Removals $ - 800's GENERAL AND UNDISTRIBUlED: 82 Field Facilities and Decommissioning $ 9,113 85 Administration Evftllnses $ 296 627 ()stantec. \\ca0213-ppfss01\work_graup\1214\aclive\121418266\05_report_de...

AI summary The document presents a summary of site decommissioning estimates for the Financial Depreciation Cost Study 2024, focusing on the Burnsides Gas Turbine Site. It includes line items for plant operating equipment removals, field facilities and decommissioning, and administrative expenses.

Section 1241
Item Description Estimated Cost: July 2024 Assumptions/ Notes: Coda 100's SITE REMEDIATION ISSUES: Factor for Up-dating from July 2020 to July 2024: = 1.23 12 SITE REMEDIATION ISSUES $ 590,624 13 SITE ACCESS REMOVALS $ - 15 SITE SERVICES R...

AI summary The text outlines estimated costs for various site remediation and decommissioning activities at a power plant, including site services removals, powerhouse and auxiliary structures removals, and coal handling plant decommissioning, with an inflation factor applied to update costs from July 2020 to July 2024.

Section 1271
Item Description Estimated Cost July 2024 Assumptions/ Notes:2024 Code 50&51 ON SITE DISTRIBUTION LINES REMOVALS $ - 56 ELECTRICAL POWER SYSTEMS REMOVAL $ 104,550 57 OTHER AUXILIARY SYSTEMS AND EQUIPMENT REMOVALS $ 17,835 68 ELECTRICAL CON...

AI summary The document outlines various removal and decommissioning activities with associated estimated costs, including on-site distribution lines, electrical power systems, and field facilities. These activities are categorized under different sections such as common services and general and undistributed expenses.

Section 1286
TIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8D Page 47 of 189 DIGBY WIND GENERATING STATION Account Code Account Description Estimated Cost 2024 Assumptions / Notes: 100's SITE REMEDIATION ISSUES: 12 SITE REMEDIATION I...

AI summary The document outlines the estimated costs for the decommissioning of the Digby Wind Generating Station, including site remediation, building removal, turbine and substation removal, electrical line removal, and administrative expenses.

Section 1288
IAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8D Page 48 of 189 NUTBY WIND GENERATING STATION Account Code Account Description Estimated Cost 2024 Assumptions / Notes: 100's SITE REMEDIATION ISSUES: 12 SITE REMEDIATION IS...

AI summary The document outlines the estimated costs and account codes associated with the decommissioning and site remediation of the Nutby Wind Generating Station, including expenses for site services removal, building removal, turbine and substation removal, and administrative costs.

Section 1304
PHCs, VOCs, and PCBs based on previous investigations completed. 124 Phase 4 - Preparation of Decommissioning and Clean-<Jp Plans 50,000 The 2021 RA and RMP will need to be updated following review of the Phase 1/11 ESA and completion of t...

AI summary The document outlines the preparation of decommissioning and clean-up plans for the Lingan Generating Station, including the need to update the 2021 Risk Assessment (RA) and Remedial Action Plan (RMP) based on previous investigations and ESA phases. An estimated $50,000 is allocated for reviewing assessments and updating plans.

Section 1306
DATE: Jul-24 Account Estimated Cost: Item Description Assumptions/ Notes: 2024 Code July 2024 125 Phase 5 - lmolementation of Decommissionina and Clean-uo Plans: Preparation of Specifications and Tender Documents, Contractor Selection 246,...

AI summary The text outlines the estimated cost of 246,000 for the preparation of specifications and tender documents for the implementation of decommissioning and clean-up plans at the LAMS site and Lingan generating station. The costs are related to capping of active containment cells, excavation of contaminated sediment, and soil capping/soil removal based on recent assessments.

Section 1339
OVED) 2026-2027 GRA Direct Evidence Appendix 8D Page 63 of 189 SITE DECOMMISSIONING ESTIMATE SUMMARY FOR FINANCIAL DEPRECIATION COST STUDY 2024 LOCATION: LINGAN GENERATING STATION DATE: Jul-24 Account Estimated Cost: Item Description Assum...

AI summary This document provides a summary of estimated costs for site decommissioning at the Lingan Generating Station, including the removal of electrical infrastructure such as distribution lines, conductors, and transformers, with notes on assumptions and testing for hazardous materials.

Section 1357
DATE: 1-Jul-24 Account Estimated Cost: Item Description Assumptions/ Notes:2024 Code July 2024 125 Phase 5 - lmolementation of Decommissionina and Clean-uo Plans: Preparation of Specifications and Tender Documents, Contractor Selection 100...

AI summary This text outlines the estimated cost for preparing specifications and tender documents for the implementation of decommissioning and clean-up plans at the CFB residue management area and POA generating station, including various environmental and structural considerations.

Section 1397
LOCATION: POINT ACONI GENERATING STATION DATE: 1-Jul-24 Account Estimated Cost: Item Description Assumptions/ Notes:2024 Code July 2024 S00's GENERAL AND ADMINISTRATION: 82 FIELD FACILITIES AND DECOMMISSIONING 127,587 825 Demolition Contra...

AI summary The document outlines estimated costs for general and administration expenses at the Point Aconi Generating Station in July 2024, including demolition, environmental engineering, and field supervision costs, with specific line items and assumptions provided.

Section 1409
2020 estimated as significant site investigation and risk assessment was completed during that time. No significant change since 2020; therefore, apply inflation factor. 125 Phase 5 - lmolementation of Decommissionina and Clean-uo Plans: P...

AI summary The text discusses the 2020 phase of decommissioning and clean-up plans, noting that significant site investigation and risk assessment were completed. No significant changes since 2020 are mentioned, and an inflation factor is applied. The phase involves preparation of specifications, contractor selection, and limited HAZMAT removals.

Section 1413
g c11.1ANl":IA1 ni:::pgi:::r:14TION COST STUDY ?n?A LOCATION: TUFT'S COVE THERMAL GENERATING STATION DATE: Jul-24 Account Item Description Assumptions/ Notes:2024 Code Removal and Disposal of Materials and Residues 3,490,191 Costs associat...

AI summary The document outlines the costs associated with the removal and disposal of materials and residues at the Tuft's Cove Thermal Generating Station, noting an increase in costs compared to the 2020 estimate due to the decommissioning of a large HFO tank and an applied inflation factor.

Section 1414
estimate, plus an additional $3,300,000 for decommissioning the HFO tanks (60', 80', 100', 220' diameter ASTs). Excavation of Contamminated Soils and Sediments 492,000 Results of SSRA indicated risks to human and terrestrial ecological rec...

AI summary The text discusses the costs associated with decommissioning HFO tanks and the potential need for soil excavation and remediation due to contamination. It highlights that while some risks are acceptable, excavation of contaminated soil may be necessary in certain areas.

Section 1446
ription Assumptions/ Notes:2024 Code S00's GENERAL AND ADMINISTRATION: 82 FIELD FACILITIES AND DECOMMISSIONING 144,048 825 Demolition Contractor Facilities 48,099 827 Decommissioning Costs 18,227 828 Demolition of all exterior buildings 77...

AI summary The document outlines various costs related to field facilities, administration expenses, and drawings. It includes specific line items such as demolition contractor facilities, decommissioning costs, and administration expenses, with detailed breakdowns of costs associated with different activities and departments.

Section 1453
therefore apply inflation factor. In-Program Contaminant Monitoring 12,300 Environmental consulting, site coordination/supervision during decommissioning, soil and water sampling during decommissionina/excavation. No sianificant chanae sin...

AI summary The text outlines various costs related to environmental monitoring and decommissioning activities, including site remediation, sampling, and regulatory approvals. Inflation factors are applied to most items due to no significant changes since 2020.

Section 1458
LOCATION: BURNSIDE GENERATING STATION (COMBUSTION TURBINE) DATE: July 2024 Estimated Account Item Description Cost: July Assumptions / Notes:2024 Code 2024 23 COAL HANDLING PLANT - REMOVE TO 1 METER BELOW GRADE does not apply to this site...

AI summary The document outlines the estimated costs for the decommissioning and removal of coal handling and ash handling plant components at the Burnsides Generating Station as of July 2024. It lists various account codes and associated items, noting that certain costs do not apply to the site.

Section 1478
123 Phase 3 - Detailed Testing Program 24,215 Assess areas of concern identified in the document review. Assume 5 additional test pits in unassessed areas (i.e., building foot prints) and soil sampling for metals, PAHs, PHCs, VOCs, PCBs. S...

AI summary The text outlines a phased approach for detailed testing, preparation of decommissioning and clean-up plans, and implementation at Tuft's Cove Thermal Generating Station, including site investigations, risk assessments, and cost estimates based on updated 2024 unit rates and an inflation factor.

Section 1507
753 Hvdroaen Svstem (when separate from Turbine/Generator Contract) 754 Instrument Air Svstem 757 Oxygen and Acetylene System 77 PLANT OPERATING EQUIPMENT REMOVALS 2903 770 Environmental - Monitoring Equipment 2,903 771 Maintenance EouiPme...

AI summary The text lists various systems and equipment related to plant operations, including environmental monitoring, vacuum cleaning, and demolition activities. It also outlines administrative expenses and includes details on consultant services, field supervision, and environmental engineering costs.

Section 1512
123 Phase 3 - Detailed Testing Program 33,106 Anticipate additional investigation will be required in the area of the six former ASTs, 6 new ASTs, two O/W separators and waste oil UST. Estimate an additional 6 test pits with soil sampling...

AI summary The document outlines various phases of a decommissioning and clean-up program, including detailed testing, preparation of plans, and implementation. It mentions the need for additional investigation, soil and groundwater sampling, and the application of inflation factors for cost estimation. Safety monitoring is also highlighted as a key component.

Section 1522
OST STUDY ?n?.t LOCATION: TUSKET GENERATING STATION (COMBUSTION TURBINE) DATE: 7/15/224 Account Estimated Cost: July Item Description Assumptions/ Notes: 2024 Code 2024 23 COAL HANDLING PLANT· REMOVE TO 1 METER BELOW GRADE does not apply t...

AI summary The text outlines the estimated costs and details for the decommissioning of the coal handling and ash handling plants at the Tusket Generating Station, including specific items and assumptions related to the process.

Section 1528
2026-2027 GRA Direct Evidence Appendix 8D Page 124 of 189 SITE •- - �"',lnNINt: · •,TE wn - 1 �nR Clt.lAt.lt"IAI • :lATION COST STUDY ?n?.t LOCATION: TUSKET GENERATING STATION (COMBUSTION TURBINE) DATE: 7/15/224 Account Estimated Cost: Jul...

AI summary This document is a cost study related to the removal of ash and water treatment systems at the Tuskett Generating Station, including various subsystems and associated estimated costs for the year 2024.

Section 1545
separators, waste oil tank and the 3 USTs. No significant change since 2020; therefore, apply inflation factor.

AI summary The text mentions the presence of separators, a waste oil tank, and three underground storage tanks (USTs) with no significant changes since 2020, suggesting the application of an inflation factor.

Section 1552
Cost2024 23 COAL HANDLING PLANT· REMOVE TO 1 METER BELOW GRADE does not apply to this site 230 Waste Water I Effluent Treatment System 231 Dumper House Facilities (incl. Coal Unloading Facilities and Primary Conveyors) 232 Stockout Conveyo...

AI summary The document outlines various decommissioning and removal activities at a coal handling and ash handling plant, including specific items such as conveyors, crushers, and buildings. It also includes costs associated with oil and gas supply structures.

Section 1562
511 Services 512 Metering 513 Transfonners (May Contain PCB's) 56 ELECTRICAL POWER SYSTEMS REMOVAL 560 General -Electrical (including Junction and Tenninal Boxes) 561 Medium Voltage Systems (4 kV to 15 kV) 562 Low Voltage Systems (480 V to...

AI summary The text outlines various electrical power systems removal categories and includes a reference to a redacted document from the 2026-2027 GRA Direct Evidence Appendix 8D, Page 134 of 189. It appears to be part of a technical or regulatory report, possibly related to infrastructure planning or asset management.

Section 1575
ram to reduce uncertainties and inform risk. Estimate $80,000 for the marine portion of the risk assessment, and $50,000 for the freshwater and terrestrial portion of the risk assessment. No change since 2020; therefore, apply inflation fa...

AI summary The text discusses the implementation of decommissioning and clean-up plans, including the preparation of specifications and tender documents. It mentions the inclusion of excavation of impacted soils and capping of the coal laydown area, with NSPI and consultant costs included.

Section 1583
nth duration of the project. Used same mathodology as 2020 but with updated 2024 unit rates. 126 Phase 6 - Confinnatory Sampling and Completion Reporting 95,096 Environmental consulting, site coordination/supervision, Project Management is...

AI summary The text discusses Phase 6 of a project involving confirmatory sampling and completion reporting, including environmental consulting, site coordination, and risk assessments. It also mentions miscellaneous considerations such as regulatory approvals and legal costs associated with decommissioning, using updated 2024 unit rates and an inflation factor.

Section 1640
574 Control Cable Systems 575 Power Cable Systems 58 ELECTRICAL CONTROL AND COMMUNICATION 6,150 580 General Electrical Controls 6,150 Installation of hydaulic gate system and electronic controls on train loadout - induded in 2020 report 58...

AI summary The text lists various systems and their associated costs, including control cable systems, power cable systems, electrical control and communication systems, and common services such as water systems, building ventilation and heating, and compressed gas services. These systems are categorized under specific codes and include details about installation and removal costs.

Section 1642
EET FOR FINANCIAL DEPRECIATION COST STUDY 2024 SYDNEY INTERNATIONAL COAL PIER Account Estimated Cost: Item Description Assumptions / Notes: 2024 Code July 2024 77 PLANT OPERATING EQUIPMENT REMOVALS 15,375 770 Environmental - Monitoring Equ...

AI summary The text provides an estimate of costs related to the removal of plant operating equipment and decommissioning activities at the Sydney International Coal Pier in 2024, including direct labor and equipment costs, as well as general and administration expenses.

Section 1669
Dispose of Remaining Fuel 24 ASH HANDLING PLANT DECOMMISSIONING N/A 240 General 241 Disposal System 242 Lagoon & Final Disposal Areas (includes Final Cell Impervious Cap, Top Soil and Seeding) 243 Open 26 AUXILIARY BUILDING REMOVAL 395,000...

AI summary The text outlines various decommissioning and removal activities, including the disposal of remaining fuel, ash handling plant decommissioning, auxiliary building removal, and the removal of oil and gas supply structures to grade level. These activities are associated with specific costs and items.

Section 1675
separate from Turbine Contract) 414 Due to extent of dismantling Vwt>rk 42 CONDENSING PLANT AND CIRCULATING WATER SYSTEM REMOVALS 420 General 421 Condensers and Auxiliaries 422 Circulating Water System (Screens, Pumps, Piping and Valves) 4...

AI summary The document outlines the removal processes for various components of a power plant, including the condensing plant, feedwater heating system, and turbine-generator controls, along with associated costs for on-site distribution line removals.

Section 1696
Account Item Description Estimated Cost 2024 Assumptions/ Notes:2024 Code Reclamation Measures 73,800 Site grading and hydroseeding at tower bases, substation, maintenance building. No significant change since 2020; therefore, apply inflat...

AI summary The document outlines estimated costs for reclamation measures, contaminant monitoring, and long-term monitoring activities related to decommissioning. Costs are adjusted using an inflation factor based on no significant changes since 2020. Expenses include site grading, hydroseeding, and regulatory reporting.

Section 1714
assumed to consist of removal of potential impacts associated Ytith potential leaks from the turbines and the substation, and potential impacts from forestry equipment stored at some of the turbine locations. No sianificant chanae since 20...

AI summary The text discusses the implementation of decommissioning and clean-up plans for a project, including preparation of specifications, worker safety monitoring, and handling of wastewater and surface drainage. It notes that no significant changes have occurred since 2020, and only inflation factors are applied.

Section 1716
73 800 Site nradina and hvdroseedina at tower bases substation maintenance buildina. No sinnificant chanae since 2020· therefore a inflation factor. ln-Proaram Contaminant Monitorina 14 760 Potential soil. aroundwater surface water and/or...

AI summary The text discusses various maintenance and remediation activities related to a site, including inflation factors applied due to no significant changes since 2020. It covers monitoring, sampling, reporting, and considerations related to land use and lease termination following decommissioning.

Section 1720
g and dis-assembly of major steel structure Concrete - floor / foundation slab removal 7,098 300's BOILERS AND AUXILIARIES: 33 BOILER PLANT· REMOVALS n/a 34 BOILER INSTRUMENTS AND CONTROL REMOVALS n/a 35 FUEL HANDLING SYSTEMS REMOVALS n/a...

AI summary The text contains a section of a document related to the removal of major components from a boiler plant, including fuel handling systems, steam and water systems, and environmental systems. It also includes a reference to a confidential estimate report.

Section 1735
groundwater sampling for metals and petroleum hydrocarbons (PHCs). Estimate includes sampling, lab analysis, consulting and reporting. 103 Phase 3 - Detailed Testing Program 20,910 Based on site use and results of the site visit and docume...

AI summary The text outlines environmental impact assessments and cost estimates for phases 3 and 4 of a decommissioning and clean-up plan, including groundwater sampling and preparation of decommissioning plans. It notes no significant environmental impacts and applies an inflation factor for cost estimation.

Section 1755
120 General Preoaration /Plannina. Permits Co-ordination with Reaulators etc.\ 15 000 Costs associated with overall olannina. oermittina. coordinatina with reaulators coordinatina with NSPI etc. 121 Phase 1 -Site Information Assessment 10...

AI summary The text outlines various phases and associated costs for site preparation, assessment, testing, and decommissioning planning for a mining project, including environmental testing and clean-up activities. Key costs are itemized for each phase, with a focus on environmental analysis and reclamation planning.

Section 1763
29350 Demo structure, and foundation to grade 22 CIRCULATING WATER - REMOVE TO 1 METER BELOW GRADE does not apply to this site 23 COAL HANDLING PLANT - REMOVE TO 1 METER BELOW GRADE does not apply to this site 24 ASH HANDLING PLANT DECOMMI...

AI summary The text contains a portion of an estimate for a site located at Glen Morrison Quarry, dated July 2024. It includes details related to the removal of structures such as circulating water systems, coal handling plants, and ash handling plant decommissioning, with notes indicating that these do not apply to the site. The document is part of a larger estimate file and is marked as confidential.

Section 1769
LOCATION: Glen Morrison Quar!Jl DATE: July 2024 Account Estimated Action By Item Description Assumptions/ Notes: 2024 Code Cost2024 77 PLANT OPERATING EQUIPMENT REMOVALS 770 Environmental - Monitoring Equipment 771 Maintenance Equipment 77...

AI summary The document outlines various costs associated with plant operating equipment removals, field facilities decommissioning, and administration expenses for 2024, including specific line items such as demolition contractor facilities, consultant services, field supervision, and environmental engineering costs.

Section 1779
86.05 (4) 13.95 (15) (6) TUFTS COVE CT 37.01 (3) 62.99 (15) (11) WIND DIGBY 96.95 (2) 3.05 (15) (2) NUTTBY 96.98 (1) 3.02 (15) (2) SOUTH CANOE 96.18 (0) 3.82 (15) (1) CANSO/SABLE 96.31 (1) 3.69 (15) (2) TUPPER/BEARHEAD 96.98 (1) 3.02 (15)...

AI summary The text presents a table of decommissioning costs related to generating units under Nova Scotia Power, Inc. for the 2026-2027 GRA Direct Evidence Appendix 8G. The table includes data for various locations and associated costs.

N-82026-2027 GRA Appendix 9-13 1 passage
Estimated Life of the Asset: 45 Years p. p. 8
Estimated Life of the Asset: 45 Years

AI summary The asset in question has an estimated life span of 45 years, indicating the projected operational duration before requiring replacement or significant overhaul.

N-92026-2027 GRA Appendix 12 A-C - Cost of Service Study Process - Redacted 4 passages
NON-CONFIDENTIAL p. p. 74
NON-CONFIDENTIAL 1 any interventions would be driven by the condition assessment results of regular inspection 2 programs as well as performance data collected throughout the year. Corrective actions are 3 developed and prioritized as appr...

AI summary The text discusses the condition assessment of substation equipment and the factors affecting its lifetime, including over-capacity operation, insulation health, and environmental conditions. It also notes that corrective actions depend on the severity and duration of equipment performance issues.

NSPI Responses to CA Data Requests p. p. 74
NSPI Responses to CA Data Requests 1 Request DR-29: 2 3 Please provide the annual replacement rate for transformers, service and meters. 4 5 (a) Please provide the derivation in Excel format with formulas intact and including 6 original so...

AI summary NSPI is responding to a data request regarding the annual replacement rate for transformers, service, and meters. The response indicates that replacements are based on asset condition and criticality rather than a fixed schedule, and provides context on the number of replacements expected for transformers and meters in 2024.

Cost of Service Study Process (NSUARB M11475) NSPI Responses to CA Data Requests p. p. 74
Cost of Service Study Process (NSUARB M11475) NSPI Responses to CA Data Requests 1 Request DR-30: 2 3 Regarding the maintenance requirements for distribution equipment, 4 5 (a) Please provide the basis for forecast for maintenance requirem...

AI summary NSPI is responding to a data request regarding the basis for forecasting maintenance requirements for distribution equipment, including factors influencing equipment lifetime and available analysis linking operating history to maintenance costs.

P977 IT - Work and Asset 55,225,663.60 p. p. 49
P977 IT - Work and Asset 55,225,663.60 Management C0021442 AMI Network Assets 2 30,481,370.92 C0026426 - IT-Customer Energy 6,649,483.97 Management P880 Work & Asset 5,618,091.81 Management In the current COS, these assets were included in...

AI summary The document discusses the classification and functionalization of IT - Work and Asset management assets within the current COS, emphasizing their role in supporting the Distribution function of the business and the criteria for direct functionalization to this area.

N-132026-2027 GRA OE-01-13 - Redacted 1 passage
Plant Maintenance p. pp. 151-152
Plant Maintenance 2016 Plant Maintenance Schedule Plan - Budget Commentary: NSPI monitors various indicators throughout the year as the Thermal Maintenance Shutdown Schedule unfolds and adjusts the Schedule appropriately in response to cha...

AI summary NSPI monitors key indicators such as fuel pricing, energy sales, safety and cost risks, and resource availability to adjust its 2016 Plant Maintenance Schedule Plan and reduce outage costs. Various NSPI groups collaborate to make coordinated decisions.

N-142026-2027 GRA OP 01-15 - Redacted 1 passage
General Property p. p. 196
General Property NS Power has general property including land rights, roads, bridges, structures and improvements, office furniture, computer hardware and software, transportation, tools, stores, shop, garage, communications, mining and ot...

AI summary NS Power's general property includes land rights, infrastructure, office equipment, transportation, tools, and other assets such as computer hardware and software.

N-20NSPI (Bates White) RIR 1-20 - Redacted 1 passage
NSPI Amendments to the Plan of Administration (NSUARB M11127) NSPI Responses to CA Information Requests p. p. 219
NSPI Amendments to the Plan of Administration (NSUARB M11127) NSPI Responses to CA Information Requests 1 Request IR-3: 2 3 Reference: Application, pp. 1-2. 4 5 Please describe the specific maintenance activities related to the costs descr...

AI summary The document details NSPI's responses to information requests regarding maintenance activities at the Point Tupper Marine Terminal and Tufts Cove pier, including preventive and corrective maintenance tasks, and the basis for associated costs.

N-22NSPI (Cleary) RIR 1-11 - Redacted 1 passage
Company Description p. p. 44
Company Description NSPI is a vertically integrated electric utility operating in Nova Scotia that contributes about 15%-20% of its parent's consolidated net income. NSPI has C$6.1 billion of assets and provides electricity generation, tra...

AI summary NSPI is a vertically integrated electric utility in Nova Scotia with C$6.1 billion in assets, serving about 540,000 customers. It generates electricity primarily from coal (44%) and natural gas (28%) and contributes 15%-20% of its parent's consolidated net income.

N-23NSPI (Doane Grant Thornton) RIR 1-93 - Redacted 1 passage
2026-2027 General Rate Application (M12451) NSPI Responses to GT Information Requests p. p. 33
2026-2027 General Rate Application (M12451) NSPI Responses to GT Information Requests 1 Request IR-31: 14 approximately $200,000 in contracts is primarily due to inflation associated with Predictive 15 Maintenance Programs. These programs...

AI summary NSPI explains that increased costs for Predictive Maintenance Programs are due to inflation and the need to support reliable asset operation. They also note a decrease in consulting expenses due to the transfer of Dam Safety Review responsibilities to the Hydro, Wind & Solar department.

N-24NSPI (ECC) RIR 1-41 52 passages
ACCOUNT 354.00 TOWERS AND FIXTURES p. p. 180
ACCOUNT 354.00 TOWERS AND FIXTURES AVG AGE RET 29.1 PLACEMENT BAND 1978-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1997-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a table with data on the average age, placement band, and experience analysis for towers and fixtures, including exposure, retirements, and survival ratios over time. This data is likely used for asset management and infrastructure planning purposes.

ACCOUNT 355.00 POLES AND FIXTURES p. p. 180
ACCOUNT 355.00 POLES AND FIXTURES AVG AGE RET 25.1 PLACEMENT BAND 1930-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a detailed experience analysis for poles and fixtures, showing exposure, retirements, and survival rates over time. It tracks data from 1930 to 2023, highlighting trends in aging infrastructure and retirement patterns.

ACCOUNT 355.00 POLES AND FIXTURES p. p. 180
ACCOUNT 355.00 POLES AND FIXTURES AVG AGE RET 24.4 PLACEMENT BAND 1964-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary This table provides a detailed breakdown of the experience analysis for poles and fixtures, including average age, exposure, retirements, and survival rates over time intervals. The data spans from 1964 to 2023 and includes metrics like retirement ratios and survival percentages for different age bands.

ACCOUNT 356.00 OVERHEAD CONDUCTORS AND DEVICES p. p. 180
ACCOUNT 356.00 OVERHEAD CONDUCTORS AND DEVICES AVG AGE RET 30.2 PLACEMENT BAND 1929-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETM...

AI summary This table presents data on the average age and retirement rates of overhead conductors and devices, showing exposure numbers, retirements, and survival ratios across various age intervals from 0.0 to 38.5 years.

ACCOUNT 361.00 STRUCTURES AND IMPROVEMENTS p. p. 180
ACCOUNT 361.00 STRUCTURES AND IMPROVEMENTS AVG AGE RET 0.0 PLACEMENT BAND 1953-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 PCT SURV RETMT SURV BEGIN OF RATIO RATIO INTERVAL AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE...

AI summary The text presents a table related to Account 361.00, which includes data on structures and improvements, such as age intervals, exposures, retirements, and survival ratios. The data spans multiple years and provides statistical insights into the experience analysis of the account.

ACCOUNT 362.00 STATION EQUIPMENT p. p. 180
ACCOUNT 362.00 STATION EQUIPMENT AVG AGE RET 23.7 PLACEMENT BAND 1929-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV R...

AI summary The text presents a detailed experience analysis table for Account 362.00 Station Equipment, showing exposure, retirements, and survival rates across different age intervals from 0.0 to 38.5 years. The data provides insights into the aging and retirement trends of equipment over time.

ACCOUNT 362.10 SCADA EQUIPMENT p. p. 180
ACCOUNT 362.10 SCADA EQUIPMENT AVG AGE RET 0.0 PLACEMENT BAND 1996-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 2009-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATI...

AI summary The text presents a table related to the average age and retirement analysis of SCADA equipment, including exposure data and survival ratios across various age intervals. The table spans from 1996 to 2023 and includes details on equipment retirements and survival percentages.

ACCOUNT 362.20 REMOTE MONITORING EQUIPMENT p. p. 180
ACCOUNT 362.20 REMOTE MONITORING EQUIPMENT AVG AGE RET 0.0 PLACEMENT BAND 2003-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary This chunk presents a table related to the average age and retirement of remote monitoring equipment, specifically under Account 362.20. The table includes data on exposure, retirements, and survival rates across various age intervals from 2003 to 2023. The data appears to be part of a larger analysis or report related to equipment lifecycle management.

ACCOUNT 364.00 POLES, TOWERS AND FIXTURES p. p. 180
ACCOUNT 364.00 POLES, TOWERS AND FIXTURES AVG AGE RET 25.8 PLACEMENT BAND 1925-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary The document presents a detailed analysis of the aging and retirement rates for poles, towers, and fixtures, tracking exposure and survival rates over time intervals. It includes statistical data on retirements, survival ratios, and percentages, providing insights into asset management and infrastructure planning.

ACCOUNT 364.00 POLES, TOWERS AND FIXTURES p. p. 180
ACCOUNT 364.00 POLES, TOWERS AND FIXTURES AVG AGE RET 28.5 002 EXPERIENCE ANALYSIS PLACEMENT BAND 1946-2023 EXPERIENCE BAND 2004-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AG...

AI summary This document provides a detailed experience analysis for Account 364.00, which covers poles, towers, and fixtures. It includes data on exposure, retirements, and survival rates over various age intervals from 0.0 to 38.5 years, indicating the aging and retirement trends of infrastructure assets.

ACCOUNT 364.00 POLES, TOWERS AND FIXTURES p. p. 180
ACCOUNT 364.00 POLES, TOWERS AND FIXTURES AVG AGE RET 30.5 PLACEMENT BAND 1947-2023 003 EXPERIENCE ANALYSIS EXPERIENCE BAND 2014-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AG...

AI summary The document presents a detailed analysis of poles, towers, and fixtures, including their average age, exposure, retirements, and survival rates over various age intervals from 1947 to 2023. The data highlights the aging infrastructure and associated retirement trends.

ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES p. p. 180
ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES AVG AGE RET 28.1 PLACEMENT BAND 1925-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETM...

AI summary This document presents an experience analysis table for overhead conductors and devices, detailing retirement rates, survival ratios, and exposure data over time intervals. The table provides statistical insights into the aging and retirement patterns of these assets.

ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES p. p. 180
ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES AVG AGE RET 29.0 PLACEMENT BAND 1929-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 1990-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETM...

AI summary The text presents a table with data related to the average age, retirements, and survival rates of overhead conductors and devices, spanning from 1929 to 2023. It includes exposure numbers, retirement ratios, and survival percentages across various age intervals, likely used for asset management and infrastructure planning.

ACCOUNT 367.00 UNDERGROUND CONDUCTORS AND DEVICES p. p. 180
ACCOUNT 367.00 UNDERGROUND CONDUCTORS AND DEVICES AVG AGE RET 30.1 PLACEMENT BAND 1946-2023 002 EXPERIENCE BAND 2004-2023 EXPERIENCE ANALYSIS AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL R...

AI summary The text presents a detailed table analyzing the aging and retirement of underground conductors and devices, including exposure numbers, retirement rates, survival ratios, and percentages over various age intervals from 0.0 to 38.5 years. The table is part of a larger document, likely related to infrastructure planning or asset management.

ACCOUNT 368.00 LINE TRANSFORMERS p. p. 180
ACCOUNT 368.00 LINE TRANSFORMERS AVG AGE RET 18.2 PLACEMENT BAND 1925-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV R...

AI summary The text provides an experience analysis table for Line Transformers, detailing retirement rates, survival ratios, and exposure data across different age intervals. It is part of a larger document related to the 2026-2027 GRA Emrydia IR-2 Attachment 1.

ACCOUNT 373.00 STREET LIGHTING AND SIGNAL SYSTEMS p. p. 180
ACCOUNT 373.00 STREET LIGHTING AND SIGNAL SYSTEMS AVG AGE RET 22.2 PLACEMENT BAND 1962-2022 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL R...

AI summary The text presents a detailed experience analysis table for street lighting and signal systems, showing exposure, retirements, and survival ratios across different age intervals. This data is likely used for asset management and infrastructure planning purposes.

ACCOUNT 373.00 STREET LIGHTING AND SIGNAL SYSTEMS p. p. 180
ACCOUNT 373.00 STREET LIGHTING AND SIGNAL SYSTEMS AVG AGE RET 21.5 PLACEMENT BAND 1976-2022 003 EXPERIENCE ANALYSIS EXPERIENCE BAND 2014-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL R...

AI summary The text presents a table with data on the experience analysis of street lighting and signal systems, including exposure, retirements, survival ratios, and percentages of survival across different age intervals. The data spans from 2014 to 2023 and provides insights into the aging and retirement patterns of these systems.

ACCOUNT 390.10 STRUCTURES AND IMPROVEMENTS p. p. 180
ACCOUNT 390.10 STRUCTURES AND IMPROVEMENTS PLACEMENT BAND 1930-2023 001 EXPERIENCE BAND 1935-2023 SURVIVOR CURVE RESID RANGE OF MEAS FIT SURVIVOR RESID RANGE OF CURVE MEAS FIT 50.1-S0 46.5-S0.5 43.7-S1 41.8-S1.5 40.3-S2 39.3-S2.5 5.35 0 -...

AI summary The document presents data from Account 390.10, focusing on structures and improvements. It includes survivor curves and measurements for different placement and experience bands, with varying ranges and fits. The data appears to be technical and related to infrastructure analysis.

ACCOUNT 397.00 COMMUNICATION EQUIPMENT p. p. 180
ACCOUNT 397.00 COMMUNICATION EQUIPMENT AVG AGE RET 16.3 PLACEMENT BAND 1933-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1945-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO...

AI summary The text presents a detailed experience analysis table for communication equipment, showing retirements, survival ratios, and exposure data across various age intervals, likely used for asset management and planning purposes.

Section 715 p. p. 180
- 13 For most transmission, distribution and general plant accounts, the initial recording of unaged plant - 14 activity (additions, retirements, etc.) began in 1942. All the transmission, distribution and general - 15 plant accounts were...

AI summary The text discusses the historical tracking of plant accounts by NS Power, noting that initial recording of unaged plant activity began in 1942 and that aged data was studied using simulated data from 1942 to 2023. NS Power started tracking aged data in 2009 with a new fixed asset system, but this data was not used in service life analysis.

NON-CONFIDENTIAL p. p. 180
NON-CONFIDENTIAL the service lives experienced in the past. For some accounts, the answer is yes. However, for some accounts, such as Account 370.10, Meters - AMI meters (a.k.a., smart meters) the answer is no, due to a quantum shift in me...

AI summary The text discusses the service life of AMI meters compared to traditional electromechanical meters, noting that AMI meters have a significantly shorter service life due to technological differences. The estimate is based on professional judgment and factors such as company plans, engineering expectations, and industry standards.

Notes: p. pp. 180-190
- Currently they're more focused on retiring 4kV where load growth is happening or where federal stipulations are mandating this - o A lot of the 4kV conversion in the city is driven by load growth - There are a lot more customers that are...

AI summary The discussion focuses on the current state of 4kV infrastructure, including load growth, overhead line maintenance, conductor replacement due to heat stress, and the use of aluminum and steel conductors. It also addresses the lifespan of components like switches, insulators, and fuses, as well as corrosion issues in coastal areas.

Preamble p. pp. 82-190
- The large bulk of the DVR is going into 4300 which is the substation depreciation pool - o What is the function? - Step-down transformer into the DVR system stepped back up - o How long do you expect it to operate? - Requirement is that...

AI summary The discussion focuses on the deployment of dynamic voltage restorers (DVRs) at a Michelin plant in Nova Scotia, including their function, expected lifespan, and maintenance requirements. Similar issues may arise at other plants, potentially requiring DVRs as a solution. The conversation also touches on enterprise asset management and a meeting with several individuals.

- And these are all ranked on a 1-5 scale (1 being the best, 5 being the worst) p. p. 181
- And these are all ranked on a 1-5 scale (1 being the best, 5 being the worst) В С D E Condition (1 best, 5 wor SU Н Condition Parameter Confidence Score 1 2 3 4 Maintenance History (Corrective/ Maintenance Frequency) 0.5 Last C Maintenan...

AI summary The document presents a table evaluating transformer conditions based on various parameters such as maintenance history, insulation aging, design issues, oil quality, dissolved gas analysis, and inspections. Each parameter is ranked on a scale from 1 to 5, with 1 being the best and 5 the worst.

• Biomass p. p. 190
• Biomass - o Point Tupper - 2013 was when it was installed/operating - Capacity 43 MW. Base load plant. - Gonna have to be some extension of the gas pipeline at Point Tupper - o Steam & electrical power agreement from this facility as wel...

AI summary The text discusses biomass energy facilities, including Point Tupper and decommissioning plans for various sites. It highlights the operational status, maintenance challenges, and future retirement dates of these facilities. Decommissioning efforts are being managed by consultants, and some hydro sites are being maintained or decommissioned in phases.

NON-CONFIDENTIAL p. pp. 27-190
NON-CONFIDENTIAL 1 Request IR-13: 2 3 Please provide a copy of all peer data considered by Gannet Fleming for each account studied 4 as part of the depreciation study. Further, for each peer, please fully explain why Gannett 5 Fleming cons...

AI summary The request asks for peer data used by Gannett Fleming in a depreciation study and why certain utilities were considered comparable to NS Power. The response explains that an industry database was used, including service life and salvage data from Canadian and U.S. utilities, without selecting specific peers for individual analysis.

APPENDIX A SERVICE LIFE STATISTICS p. pp. 61-89
APPENDIX A SERVICE LIFE STATISTICS

AI summary This appendix contains service life statistics, presented visually in a figure, likely related to infrastructure or equipment longevity within the Nova Scotia regulatory context.

ACCOUNT 310.99 STEAM PRODUCTION PLANT p. p. 147
ACCOUNT 310.99 STEAM PRODUCTION PLANT YEAR (1) ORIGINAL COST (2) ACCRUED (3) CALCULATED ALLOC. BOOK FUT. BOOK RESERVE (4) ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7) TRENTON 5 INTERIM SURVIVOR CURVE IOWA 60-L2 PROBABLE RETIREMENT YEAR 6-...

AI summary The document outlines details related to the steam production plant under Account 310.99, including information about the Trenton 5 interim survivor curve, probable retirement year 6-2025, and net salvage percentage of 14%. This appears to be a financial and asset management table for regulatory purposes.

ACCOUNT 340.99 OTHER PRODUCTION PLANT p. p. 147
ACCOUNT 340.99 OTHER PRODUCTION PLANT YEAR (1) ORIGINAL COST (2) CALCULATED ALLOC. BOOK FUT. BOOK ACCRUED RESERVE (3) (4) (5) ACCRUALS REM. LIFE (6) ANNUAL ACCRUAL (7)

AI summary The text presents a table related to Account 340.99 Other Production Plant, which includes columns for year, original cost, accrued reserve, remaining life, and annual accrual. The table appears to be related to financial accounting and asset management, but no specific details or discussions are provided in the text.

ACCOUNT 361 STRUCTURES AND IMPROVEMENTS p. p. 147
ACCOUNT 361 STRUCTURES AND IMPROVEMENTS YEAR (1) ORIGINAL COST (2) ACCRUED (3) CALCULATED ALLOC. BOOK FUT. BOOK RESERVE (4) ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7) SURVIVOR CURVE IOWA 50-R2.5 NET SALVAGE PERCENT5

AI summary The text presents a table under 'Account 361 Structures and Improvements' with columns for year, original cost, accrued amounts, calculated allocation, reserve, accruals, and remaining life. The table includes a row labeled 'SURVIVOR CURVE IOWA 50-R2.5 NET SALVAGE PERCENT5', suggesting an asset or structure related to infrastructure planning or asset management.

ACCOUNT 364 POLES, TOWERS AND FIXTURES p. p. 147
ACCOUNT 364 POLES, TOWERS AND FIXTURES YEAR (1) ORIGINAL COST (2) ACCRUED (3) CALCULATED ALLOC. BOOK FUT. BOOK RESERVE (4) ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7)

AI summary This section of the document outlines Account 364, which pertains to poles, towers, and fixtures. It includes columns for original cost, accrued amounts, calculated allocation book future book reserve, accruals, remaining life, and annual accruals. The table appears to be related to financial accounting and asset management.

ACCOUNT 365 OVERHEAD CONDUCTORS AND DEVICES p. p. 147
ACCOUNT 365 OVERHEAD CONDUCTORS AND DEVICES YEAR (1) ORIGINAL COST (2) ACCRUED (3) RESERVE (4) CALCULATED ALLOC. BOOK FUT. BOOK ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7) YEAR (1) ORIGINAL COST (2) ACCRUED (3) CALCULATED ALLOC. BOOK FUT...

AI summary The text presents a table related to Account 365, which covers overhead conductors and devices, including columns for year, original cost, accrued amounts, reserve calculations, and annual accruals. The table appears to be part of financial or asset management reporting.

- d Amounts shown are for vintages outside of the amortization period for each account. These amounts should be retired with the adoption of amortization accounting. p. p. 147
- d Amounts shown are for vintages outside of the amortization period for each account. These amounts should be retired with the adoption of amortization accounting. 1 Request IR-19: 11 Gannett Fleming worked with NS Power subject matter e...

AI summary The text discusses asset management practices, focusing on the factors influencing asset retirement such as normal wear and tear, inadequacy, and technical/economic obsolescence. It also references NS Power's Strategic Asset Management Plan (SAMP), which aligns with ISO 55000 standards and guides asset management decisions.

Section 1407 p. pp. 147-79
6 7 These plans collectively inform NS Power's asset lifecycle strategies, including replacement, 8 refurbishment, and life extension decisions. Asset Management Plans (AMPs) are developed for 9 specific asset groupings (e.g., generation,...

AI summary The text discusses NS Power's asset lifecycle strategies, including replacement, refurbishment, and life extension decisions, informed by Asset Management Plans (AMPs) for specific asset groupings. AMPs are reviewed annually and updated to reflect emerging risks, regulatory changes, and evolving customer needs.

1 Introduction p. pp. 82-83
1 Introduction Nova Scotia Power Inc.'s (NS Power's) mission is that "We are proud to power Nova Scotia. Our customers count on us for safe, reliable and affordable electricity." NS Power is committed to supporting both the provincial and...

AI summary Nova Scotia Power Inc. (NS Power) outlines its commitment to asset management through its Strategic Asset Management Plan (SAMP), emphasizing the need for rigorous processes to support clean energy goals and regulatory compliance. The SAMP is a 5-year plan subject to review and revision as needed.

3.2 Structure and Leadership p. pp. 88-89
3.2 Structure and Leadership NS Power's EAM division reports directly to its Chief Operating Officer (COO) through a Director, parallel with the Energy Delivery and Power Production divisions which are the "owners" of the majority of NS Po...

AI summary NS Power's EAM division is structured under the Chief Operating Officer, with three departments focused on risk, strategic planning, and operations. The division includes engineering, IT, financial, and compliance resources and works with technical SMEs to support field operations and decision-making.

3.2.1 The System Planning & Grid Integration Division p. p. 89
3.2.1 The System Planning & Grid Integration Division The System Planning & Grid Integration division (hereafter referred to as the System Planning team) coordinates and executes mid- and long-term system modelling. These models inform the...

AI summary The System Planning & Grid Integration Division is responsible for mid- and long-term system modelling, including the 10-year System Outlook and Integrated Resource Plan. It coordinates with stakeholders and considers factors like demand-side management and environmental limitations. The team also performs near-term planning studies and collaborates with EAM functions to ensure asset capabilities are considered.

4 Asset Management Objectives p. pp. 89-91
4 Asset Management Objectives NS Power's Asset Management Objectives are derived from and shaped by organizational objectives. The following foundational objectives underpin NS Power's Asset Management practice: - Manage assets and asset i...

AI summary NS Power's Asset Management Objectives are aligned with organizational goals, focusing on managing assets effectively, normalizing risk, leveraging reliability teams for planning, ensuring data accessibility, and meeting compliance requirements such as Nova Scotia Power Incorporated Performance Standards Regulations and NERC/NPCC Requirements.

4.1 Balanced Scorecard p. p. 91
4.1 Balanced Scorecard Along with Environmental, Safety, People, and Financial objectives, NS Power includes an Asset Management line on its annual internal Balanced Scorecard (BSC). These goals often include targets for common electric ut...

AI summary NS Power includes an Asset Management line on its annual internal Balanced Scorecard, alongside Environmental, Safety, People, and Financial objectives. Performance metrics such as DAFOR, CAIDI, and SAIDI are used as targets, along with strategic initiatives from climate adaptation and integrated resource plans.

5 Regulatory Context and Stakeholder Engagement p. pp. 92-93
5 Regulatory Context and Stakeholder Engagement NS Power is regulated under the Public Utilities Act and the Electricity Act by the Nova Scotia Utility and Review Board (UARB), and through these Acts NS Power is mandated to serve the elect...

AI summary NS Power is regulated by the Nova Scotia Utility and Review Board under the Public Utilities Act and Electricity Act. The UARB oversees processes such as General Rate Applications, Annual Capital Expenditure Plan approvals, and Integrated Resource Plans. NS Power's EAM division and senior leadership are involved in these processes, ensuring alignment with regulatory requirements and organizational objectives.

6.2 Internal Stakeholders p. pp. 94-95
6.2 Internal Stakeholders Internal stakeholders have other unique needs and expectations. Examples include confidence that the assets they work with and on can be operated safely and reliably, that they have sufficient resources to complet...

AI summary Internal stakeholders require confidence in asset safety, resource availability, and involvement in decision-making. NS Power emphasizes organizational commitment to asset management, involving multiple departments beyond EAM, such as Procurement, Human Resources, and Safety, for its effective implementation and improvement.

7.2 Asset Management Plans p. p. 97
7.2 Asset Management Plans NS Power's Asset Management Plans (AMPs) are formulated for specific asset groupings and developed through the participation of Reliability Teams. The AMP template includes the following sections: - 1. Overview p...

AI summary NS Power develops Asset Management Plans (AMPs) for specific asset groupings, incorporating risk ratings, strategies, and performance expectations. The Utilization Factor (UF) is introduced to better forecast generating unit demands, considering factors like capacity, service hours, and asset health. AMPs aim to optimize asset interventions through technology and analytics, focusing on critical assets and reliability-centered maintenance.

8 Human Resources p. p. 101
8 Human Resources Human resource management, as it pertains to Asset Management practice, can be divided into several separate areas. - Asset Management System Function: As noted above, NS Power's Asset Management Pyramid considers roles r...

AI summary The section discusses human resource management within Asset Management at NS Power, covering areas such as the Asset Management System, capital project execution, operations and maintenance resourcing, and competency management. It highlights the importance of balancing resource constraints with risk management and the use of internal and external resources to meet operational and regulatory requirements.

9.2 Daily Activities p. p. 104
9.2 Daily Activities While longer-term decision-making utilizes this approach, it is similarly applied in regularly daily decisions. Work prioritization standards consider all the same inputs as noted above, including asset criticality, he...

AI summary Daily activities involve work prioritization based on asset criticality, health, and compliance standards. Dispatch decisions consider fuel costs, environmental constraints, inter-provincial energy availability, and operational limitations when addressing generation unit failures.

9.3 Asset Information p. pp. 104-105
9.3 Asset Information Quality asset information, both static and dynamic, is critical to informing an understanding of asset condition and making risk-informed decisions. As noted in Section 4.2 above, the development of a Data Strategy is...

AI summary The document emphasizes the importance of quality asset information for informed decision-making and outlines NS Power's efforts in developing a Data Governance strategy. It highlights the need for integration and control of data across systems, as well as effective change management to sustain asset information programs.

10.1 Internal Audit p. pp. 106-107
10.1 Internal Audit As noted in the Asset Management Objectives, NS Power is planning to deploy Internal Audit processes for its Asset Management System by end of 2025, and details will be captured in an Asset Management Standard Operating...

AI summary NS Power plans to implement internal audit processes for its Asset Management System by the end of 2025, with details to be included in an Asset Management Standard Operating Practice (SOP). The SOP will outline the system's components, audit frequency, and approach.

12 REFERENCES p. p. 107
12 REFERENCES - Asset Management Policy - Asset Management Playbook - Asset Management SOP Criticality Assessment (WIP) - Asset Management SOP Reliability Team Process (WIP) - Asset Management SOP AMP Template

AI summary The text lists several asset management documents, including policies, playbooks, and standard operating procedures, indicating a focus on asset management practices and processes.

13 APPENDICES p. p. 107
13 APPENDICES - Appendix A [Mapping of ISO 55000 to NSP Asset Management System Elements](https://thegrid.emera.com/Sites/NSPIEAM/int/AMO/Playbook/Appendix%20A%20-%20Mapping%20of%20Asset%20Management.xlsx?web=1) - Appendix B [Description o...

AI summary The document includes appendices that provide information on the mapping of ISO 55000 to the Nova Scotia Power (NSP) Asset Management System and a description of notable undertakings. These appendices are part of a regulatory proceeding related to asset management practices.

Mapping of ISO 55000 to NSP Asset Management System Elements p. p. 107
Mapping of ISO 55000 to NSP Asset Management System Elements IAM 6-Box Conceptual AM Model NSPI Reference Associated Processes / Systems ISO 55001:2024 ISO 55000 Sections (Fig.4 in SAMP) AM System Component(s) (as applicable) Section 4 - C...

AI summary This document maps elements of the ISO 55000 standard to the Nova Scotia Power (NSP) Asset Management System, highlighting components such as the Strategic Asset Management Plan (SAMP), Integrated Resource Plan (IRP), and various processes and systems involved in asset management.

Description of Notable Undertakings p. p. 107
Description of Notable Undertakings This document is intended to be a brief description of the Notable Undertakings for reference only. Any discrepancies or perceived inconsistencies with other documents are unintentional. These Undertakin...

AI summary This document provides a brief description of Notable Undertakings as part of the Asset Management Framework and references Fig.5 in the SAMP. It serves as a reference only and may contain unintentional discrepancies with other documents.

NS Power's undergoes regular audit-like engagements with its insurance broker. The EAM team leads this engagement, and provides information ahead of these engagements, leads communication with p. p. 107
NS Power's undergoes regular audit-like engagements with its insurance broker. The EAM team leads this engagement, and provides information ahead of these engagements, leads communication with 2026-2027 GRA EMRYDIA IR-24 Attachment 1 Page...

AI summary NS Power undergoes regular audit-like engagements with its insurance broker, led by the EAM team, who provide information and communication regarding asset management practices, asset performance, and asset programs.

1 Request IR-25: p. p. 107
NON-CONFIDENTIAL 1 Request IR-25: 25 applied professional judgment and considered net salvage statistics observed across the electric 26 utility industry to ensure the selected rates reflect both NS Power's historical experience and 27 bro...

AI summary The document discusses NS Power's approach to asset management and replacement decisions, emphasizing the use of a risk-based framework that considers multiple factors rather than relying on fixed useful life or salvage rates. The company dynamically assesses asset life and salvage costs based on operational conditions and regulatory compliance.

N-27NSPI (NSEB) RIR 1-152 - Redacted (settlement agreement attached at IR-1) 4 passages
13. PROPERTY, PLANT AND EQUIPMENT p. p. 20
13. PROPERTY, PLANT AND EQUIPMENT As at millions of dollars December 31 2024 December 31 2023 Generation $ 3,873 $ 3,746 Transmission 1,276 1,234 Distribution 2,186 2,041 General plant and other 863 835 Total cost 8,198 7,856 Less: Accumul...

AI summary The document presents a table detailing the property, plant, and equipment (PP&E) of the utility as of December 31, 2024, and 2023, including categories such as generation, transmission, distribution, and general plant. Accumulated depreciation and construction work in progress are also reported, along with the allowance for funds used during construction (AFUDC) capitalized for the year ended December 31, 2024.

13 Figure 2: Contribution to CHI by Outage Cause 2019-2023 (Including all Storms) p. p. 197
13 Figure 2: Contribution to CHI by Outage Cause 2019-2023 (Including all Storms) 14 \ These cause codes have been adjusted from the original Electricity Canada methodology as discussed above to illustrate the 15 additional contribution fr...

AI summary Figure 2 illustrates the contribution to customer hours of interruption (CHI) by outage cause from 2019 to 2023, including all storms. The cause codes have been adjusted from the original Electricity Canada methodology to account for additional contributions from tree contacts within adverse weather. The plan aims to align with this analysis and allocate investment to address the impacts of tree contacts and adverse weather on the power system.

1 Figure 5: Distribution Vegetation Management Right of Way Widening (2025) p. pp. 1-5
1 Figure 5: Distribution Vegetation Management Right of Way Widening (2025) 2 3 4 In 2025, NS Power will begin leveraging satellite imagery to further assess vegetation conditions 5 by analyzing the proximity of vegetation to conductors. B...

AI summary In 2025, NS Power plans to use satellite imagery to analyze vegetation near power lines, combining this data with historical outage information to improve vegetation management on poorly performing circuits. This approach will help focus resources on high-risk areas.

Preamble p. p. 20
(b) Please refer to Confidential Attachment 1 that provides the scope of work for the partial decommissioning costs. This was not determined by taking the scope of work for full decommissioning activities and adjusting for a partial decomm...

AI summary The text discusses the methodology for estimating partial decommissioning costs for hydro systems, excluding full decommissioning activities and civil aspects. It highlights that decommissioning costs are not included in customer rates due to their magnitude and the need to balance cost recovery and rate pressure, as outlined in section 8.5 of the GRA.

N-31NSPI (ECC) IR 1 to 41 - REFILED 61 passages
ACCOUNT 310.99 STEAM PRODUCTION PLANT p. p. 81
ACCOUNT 310.99 STEAM PRODUCTION PLANT AVG AGE RET 22.2 PLACEMENT BAND 1952-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO S...

AI summary The document presents a detailed experience analysis for the Steam Production Plant under Account 310.99, showing exposure, retirements, and survival rates across various age intervals, reflecting the aging and performance of the plant's assets over time.

ACCOUNT 330.99 HYDRAULIC PRODUCTION PLANT p. p. 81
ACCOUNT 330.99 HYDRAULIC PRODUCTION PLANT AVG AGE RET 32.8 PLACEMENT BAND 1920-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1920-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary This document presents a detailed experience analysis for Account 330.99 Hydraulic Production Plant, tracking retirements, exposures, and survival rates across various age intervals. It provides statistical data on the aging and performance of the hydraulic production plant over time.

ACCOUNT 340.99 OTHER PRODUCTION PLANT - SIMPLE CYCLE p. p. 81
ACCOUNT 340.99 OTHER PRODUCTION PLANT - SIMPLE CYCLE AVG AGE RET 35.8 PLACEMENT BAND 1973-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVA...

AI summary The document presents an experience analysis for Account 340.99, Other Production Plant - Simple Cycle, detailing exposure, retirements, survival ratios, and percentages across various age intervals from 0.0 to 38.5. The data spans over multiple years and includes a range of metrics related to asset management and aging.

ACCOUNT 340.99 OTHER PRODUCTION PLANT - SIMPLE CYCLE p. p. 81
ACCOUNT 340.99 OTHER PRODUCTION PLANT - SIMPLE CYCLE AVG AGE RET 32.9 PLACEMENT BAND 1973-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVA...

AI summary The text presents an experience analysis table for Account 340.99, which relates to other production plant - simple cycle. The table includes data on age intervals, exposures, retirements, survival ratios, and percentages of survival for different age bands. This information is likely used for assessing the aging and retirement patterns of production plant assets.

ACCOUNT 340.99 OTHER PRODUCTION PLANT - WIND p. p. 81
ACCOUNT 340.99 OTHER PRODUCTION PLANT - WIND AVG AGE RET 9.3 001 EXPERIENCE ANALYSIS PLACEMENT BAND 2003-2023 EXPERIENCE BAND 2009-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL...

AI summary This document presents an experience analysis for Account 340.99, which relates to other production plant - wind. It includes data on exposures, retirements, and survival rates across different age intervals of wind production assets, with a focus on the period from 2003 to 2023.

ACCOUNT 353.00 STATION EQUIPMENT p. p. 81
ACCOUNT 353.00 STATION EQUIPMENT AVG AGE RET 24.4 PLACEMENT BAND 1925-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV R...

AI summary The text presents a detailed table analyzing the aging and retirement of station equipment, including exposure, retirements, and survival rates over different age intervals. It provides statistical data on equipment lifecycle and retirement trends, which are relevant for infrastructure planning and asset management.

ACCOUNT 353.00 STATION EQUIPMENT p. p. 81
ACCOUNT 353.00 STATION EQUIPMENT AVG AGE RET 28.7 PLACEMENT BAND 1966-2023 004 EXPERIENCE ANALYSIS EXPERIENCE BAND 2014-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV R...

AI summary The document presents a detailed experience analysis table for station equipment, showing exposure, retirements, and survival ratios across different age intervals from 0.0 to 38.5 years. This data is relevant for understanding the aging and replacement patterns of equipment in the electricity sector.

ACCOUNT 354.00 TOWERS AND FIXTURES p. p. 81
ACCOUNT 354.00 TOWERS AND FIXTURES AVG AGE RET 29.1 PLACEMENT BAND 1978-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1997-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a detailed experience analysis table for Account 354.00, which tracks towers and fixtures, showing exposure data, retirements, and survival ratios across different age intervals, with notable increases in retirement rates as assets age.

ACCOUNT 355.00 POLES AND FIXTURES p. p. 81
ACCOUNT 355.00 POLES AND FIXTURES AVG AGE RET 25.1 PLACEMENT BAND 1930-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a detailed experience analysis table for Account 355.00, which relates to poles and fixtures. It includes data on average age, exposure, retirements, and survival rates over various time intervals from 1930 to 2023. The data is provided by Nova Scotia Power, Inc.

ACCOUNT 355.00 POLES AND FIXTURES p. p. 81
ACCOUNT 355.00 POLES AND FIXTURES AVG AGE RET 24.4 PLACEMENT BAND 1964-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a detailed experience analysis table for Account 355.00, which covers poles and fixtures. It outlines exposure, retirements, and survival ratios across various age intervals from 0.0 to 38.5 years, providing insights into the aging and retirement trends of these assets.

ACCOUNT 356.00 OVERHEAD CONDUCTORS AND DEVICES p. p. 81
ACCOUNT 356.00 OVERHEAD CONDUCTORS AND DEVICES AVG AGE RET 31.0 PLACEMENT BAND 1939-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 1990-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETM...

AI summary The table presents data on the average age and retirement rates of overhead conductors and devices, spanning from 1939 to 2023. It includes exposure numbers, retirement counts, and survival ratios at different age intervals, reflecting trends in aging infrastructure and retirements over time.

ACCOUNT 357.00 UNDERGROUND CONDUIT p. p. 81
ACCOUNT 357.00 UNDERGROUND CONDUIT AVG AGE RET 0.0 PLACEMENT BAND 1995-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 2009-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a detailed table related to Account 357.00 Underground Conduit, showing exposure data, retirement ratios, survival ratios, and percentages across various age intervals from 1995 to 2023. The data highlights consistent survival rates and no retirements during the intervals listed.

ACCOUNT 358.00 UNDERGROUND CONDUCTORS AND DEVICES p. p. 81
ACCOUNT 358.00 UNDERGROUND CONDUCTORS AND DEVICES AVG AGE RET 0.0 005 EXPERIENCE ANALYSIS PLACEMENT BAND 1995-2023 EXPERIENCE BAND 2020-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTE...

AI summary This document presents an experience analysis for Account 358.00, focusing on underground conductors and devices. It includes data on exposure at different age intervals, retirements, and survival rates, providing a detailed breakdown of the asset's lifecycle and performance.

ACCOUNT 359.00 ROADS, TRAILS AND BRIDGES p. p. 81
ACCOUNT 359.00 ROADS, TRAILS AND BRIDGES AVG AGE RET 13.8 PLACEMENT BAND 1938-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1957-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATI...

AI summary The document presents an experience analysis table for Account 359.00, which relates to roads, trails, and bridges. It includes data on exposures, retirements, survival ratios, and percentages for different age intervals. The table appears to be part of a larger report or analysis, likely related to infrastructure planning or asset management.

ACCOUNT 361.00 STRUCTURES AND IMPROVEMENTS p. p. 81
ACCOUNT 361.00 STRUCTURES AND IMPROVEMENTS AVG AGE RET 0.0 PLACEMENT BAND 1953-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 PCT SURV RETMT SURV BEGIN OF RATIO RATIO INTERVAL AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE...

AI summary The text presents a table with data related to structures and improvements, including age intervals, exposures, retirements, and survival ratios. It appears to be part of a technical analysis or report, possibly related to infrastructure or asset management.

Preamble p. pp. 81-183
NOVA SCOTIA POWER, INC. ACCOUNT 361.00 STRUCTURES AND IMPROVEMENTS SUMMARY OF CURVE FITTING RESULTS - PCT SURV BALANCED AREAS PLACEMENT BAND 1953-2023 005 EXPERIENCE BAND 2020-2023 SURVIVOR RESID RANGE OF SURVIVOR RESID RANGE OF CURVE MEAS...

AI summary The text presents a summary of curve fitting results for Account 361.00, which relates to structures and improvements. It includes data on survivor residuals and measurement fits for different time periods, indicating analysis of performance or reliability over time.

ACCOUNT 362.00 STATION EQUIPMENT p. p. 81
ACCOUNT 362.00 STATION EQUIPMENT AVG AGE RET 23.7 PLACEMENT BAND 1929-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV R...

AI summary The text presents a detailed experience analysis table for Station Equipment under Account 362.00, showing exposure, retirements, retirement ratios, survival ratios, and survival percentages over various age intervals from 0.0 to 38.5 years. This data is part of a larger document, specifically Attachment 1 of the 2026-2027 GRA Emrydia IR-2.

ACCOUNT 362.10 SCADA EQUIPMENT p. p. 81
ACCOUNT 362.10 SCADA EQUIPMENT AVG AGE RET 0.0 PLACEMENT BAND 1996-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 2009-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATI...

AI summary This document presents a table detailing the average age and retirement data for SCADA equipment, with exposure intervals ranging from 0.0 to 27.5 years. It includes exposure counts, retirements, and survival ratios, reflecting the lifecycle and management of SCADA equipment over time.

ACCOUNT 362.20 REMOTE MONITORING EQUIPMENT p. p. 81
ACCOUNT 362.20 REMOTE MONITORING EQUIPMENT AVG AGE RET 0.0 PLACEMENT BAND 2003-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 2009-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary The document presents a statistical analysis of remote monitoring equipment, including exposure data, retirements, and survival rates over various age intervals, with a focus on the 2026-2027 GRA Emrydia IR-2 Attachment 1.

ACCOUNT 362.30 STATION EQUIPMENT - MISCELLANEOUS p. p. 81
ACCOUNT 362.30 STATION EQUIPMENT - MISCELLANEOUS AVG AGE RET 9.3 PLACEMENT BAND 1995-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RET...

AI summary This section presents an experience analysis for station equipment, detailing exposure, retirements, and survival ratios across different age intervals. The data shows the distribution and aging of equipment over time, with a focus on retirements and survival rates. The GRA Emrydia IR-2 Attachment 1 is referenced for the 2026-2027 period.

ACCOUNT 364.00 POLES, TOWERS AND FIXTURES p. p. 81
ACCOUNT 364.00 POLES, TOWERS AND FIXTURES AVG AGE RET 25.8 PLACEMENT BAND 1925-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary This table presents data on the aging and retirement of poles, towers, and fixtures, with statistics including average age, exposure, retirements, and survival rates over time. The data spans from 1942 to 2023 and is part of a larger document related to the Generation Resource Assessment (GRA) for the 2026-2027 period.

ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES p. p. 81
ACCOUNT 365.00 OVERHEAD CONDUCTORS AND DEVICES AVG AGE RET 28.1 PLACEMENT BAND 1925-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1942-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETM...

AI summary This table provides data on the average age and retirement rates of overhead conductors and devices, with exposure figures and survival rates across various age intervals. It outlines the number of retirements and survival percentages from 1942 to 2023.

ACCOUNT 366.00 UNDERGROUND CONDUIT p. p. 81
ACCOUNT 366.00 UNDERGROUND CONDUIT AVG AGE RET 51.3 PLACEMENT BAND 1929-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV...

AI summary The text presents a detailed experience analysis for Account 366.00 Underground Conduit, including exposure data, retirement rates, survival ratios, and percentages of survival over various age intervals, providing insights into the aging and performance of underground conduit infrastructure.

ACCOUNT 367.00 UNDERGROUND CONDUCTORS AND DEVICES p. p. 81
ACCOUNT 367.00 UNDERGROUND CONDUCTORS AND DEVICES AVG AGE RET 30.1 PLACEMENT BAND 1946-2023 002 EXPERIENCE BAND 2004-2023 EXPERIENCE ANALYSIS AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL R...

AI summary The document presents a detailed statistical analysis of the aging and retirement patterns of underground conductors and devices, including exposure numbers, retirement rates, survival ratios, and percentages of survival over time intervals from 0.0 to 38.5 years.

ACCOUNT 368.00 LINE TRANSFORMERS p. p. 81
ACCOUNT 368.00 LINE TRANSFORMERS AVG AGE RET 20.7 PLACEMENT BAND 1960-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF EXPOSURES AT BEGINNING OF RETIREMENTS DURING AGE RETMT SURV PCT SURV BEGIN OF INTERVAL AGE INTERVA...

AI summary This table presents data on the average age and retirement experience of line transformers, including exposure, retirements, survival ratios, and percentage survival over various age intervals from 2004 to 2023. It is part of a larger document related to the 2026-2027 GRA Emrydia IR-2 Attachment 1.

ACCOUNT 368.00 LINE TRANSFORMERS p. p. 81
ACCOUNT 368.00 LINE TRANSFORMERS AVG AGE RET 24.4 PLACEMENT BAND 1964-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV R...

AI summary The document presents a detailed experience analysis table for Line Transformers under Account 368.00, covering exposure, retirements, and survival ratios across various age intervals from 0.0 to 38.5 years. This data reflects the aging and retirement trends of transformers over time.

ACCOUNT 370.00 METERS p. p. 81
ACCOUNT 370.00 METERS AVG AGE RET 17.1 PLACEMENT BAND 1970-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO PCT SU...

AI summary The text presents a table detailing the experience analysis of meters over time, including exposure, retirements, and survival rates across various age intervals from 0.0 to 38.5 years. This data is part of an attachment for a regulatory proceeding related to metering and asset management.

ORIGINAL LIFE TABLE, CONT. p. p. 81
ORIGINAL LIFE TABLE, CONT. EXPERIENCE ANALYSIS PLACEMENT BAND 1925-2022 PCT SURV BEGIN OF AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 1.47 1.07 0.78 0.50 0.32 0.25 0.15 0.09 0.05 13,446 8,375 0.6229 0.3771 0.03 5,071 5,071 1.0000 0.01 1,508...

AI summary The document presents a continuation of the original life table, including experience analysis data with survival ratios, retirement statistics, and exposure figures. It is part of a 2026-2027 GRA Emrydia IR-2 attachment, indicating it is related to a generation resource assessment.

ACCOUNT 373.00 STREET LIGHTING AND SIGNAL SYSTEMS p. p. 81
ACCOUNT 373.00 STREET LIGHTING AND SIGNAL SYSTEMS AVG AGE RET 22.2 PLACEMENT BAND 1962-2022 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL R...

AI summary This table presents experience analysis data for street lighting and signal systems, including exposure, retirements, and survival ratios across different age intervals. It is part of the 2026-2027 GRA Emrydia IR-2 attachment.

ORIGINAL LIFE TABLE, CONT. p. p. 81
ORIGINAL LIFE TABLE, CONT. AVG AGE RET 22.2 002 EXPERIENCE ANALYSIS PLACEMENT BAND 1962-2022 EXPERIENCE BAND 2004-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTE...

AI summary The text presents an original life table continuation with data on average age, exposures, retirements, and survival rates across different age intervals. It also references an attachment from a 2026-2027 GRA Emrydia document, indicating ongoing analysis related to generation resources.

ACCOUNT 373.10 STREET LIGHTING AND SIGNAL SYSTEMS - LED p. p. 81
ACCOUNT 373.10 STREET LIGHTING AND SIGNAL SYSTEMS - LED AVG AGE RET 6.3 001 EXPERIENCE ANALYSIS PLACEMENT BAND 2012-2023 EXPERIENCE BAND 2012-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN O...

AI summary This document presents an experience analysis for street lighting and signal systems, specifically focusing on LED technology, with data spanning from 2012 to 2023. It includes exposure, retirements, and survival rates for different age intervals of the systems.

ACCOUNT 389.10 LAND RIGHTS - GENERAL PLANT p. p. 81
ACCOUNT 389.10 LAND RIGHTS - GENERAL PLANT AVG AGE RET 0.0 PLACEMENT BAND 1995-2023 001 EXPERIENCE ANALYSIS EXPERIENCE BAND 1995-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary The text presents a detailed experience analysis table for land rights under Account 389.10, showing exposure, retirements, and survival rates over different age intervals. It is part of a 2026-2027 Generation Resource Assessment (GRA) attachment.

ACCOUNT 389.10 LAND RIGHTS - GENERAL PLANT p. p. 81
ACCOUNT 389.10 LAND RIGHTS - GENERAL PLANT AVG AGE RET 0.0 PLACEMENT BAND 1995-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RAT...

AI summary The document presents an experience analysis table for land rights under Account 389.10, showing exposure data, retirements, survival ratios, and percentages for different age intervals. The data spans from 1995 to 2023 and includes various age bands and exposure figures.

ACCOUNT 390.10 STRUCTURES AND IMPROVEMENTS p. p. 81
ACCOUNT 390.10 STRUCTURES AND IMPROVEMENTS AVG AGE RET 25.5 PLACEMENT BAND 1960-2023 002 EXPERIENCE ANALYSIS EXPERIENCE BAND 2004-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RA...

AI summary This table provides data on the average age, retirements, and survival rates for structures and improvements over time, likely related to infrastructure planning and asset management within a regulatory proceeding.

ACCOUNT 392.00 TRANSPORTATION EQUIPMENT p. p. 81
ACCOUNT 392.00 TRANSPORTATION EQUIPMENT AVG AGE RET 11.6 PLACEMENT BAND 1953-2023 001 EXPERIENCE BAND 1972-2023 EXPERIENCE ANALYSIS AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO...

AI summary The text presents a table analyzing the aging and retirement patterns of transportation equipment, including exposure at the beginning of age intervals, retirements during intervals, and survival rates. The data spans multiple age intervals and provides statistical insights into equipment longevity and replacement trends.

INPUT CONTROL TOTALS THROUGH 2023 p. p. 81
INPUT CONTROL TOTALS THROUGH 2023 TRAN T O T A L I N P U T D A T A CODE AGED UNAGED TOTAL 0 9,325,989.86- 0.00 9,325,989.86- TOTAL DATA 9,325,989.86- 0.00 9,325,989.86- 8 28,577,986.98 0.00 28,577,986.98 TOTAL DATA LESS CD 8 37,903,976.84-...

AI summary This document presents input control totals through 2023, including data on communication equipment and SCADA equipment, with details on age bands, exposures, retirements, and survival rates. It contains extensive numerical data on equipment aging and retirement patterns.

ACCOUNT 397.10 COMMUNICATION EQUIPMENT - SCADA EQUIPMENT p. p. 81
ACCOUNT 397.10 COMMUNICATION EQUIPMENT - SCADA EQUIPMENT AVG AGE RET 23.3 PLACEMENT BAND 1979-2023 005 EXPERIENCE ANALYSIS EXPERIENCE BAND 2020-2023 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INT...

AI summary The document presents a detailed experience analysis table for SCADA equipment, showing exposure, retirements, and survival ratios across various age intervals, with data spanning from 1979 to 2023 and including retirement and survival percentages for different age bands.

ACCOUNT 399.76 MINING EQUIPMENT (KELLY ROCK) p. p. 81
ACCOUNT 399.76 MINING EQUIPMENT (KELLY ROCK) AVG AGE RET 0.0 001 EXPERIENCE ANALYSIS PLACEMENT BAND 1998-2003 EXPERIENCE BAND 1998-2023 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL...

AI summary The text presents a table related to Account 399.76, Mining Equipment (Kelly Rock), with data on average age, exposures, retirements, and survival rates across various age intervals. The table shows consistent survival rates of 100% across all intervals, with slight changes in exposure numbers over time.

ACCOUNT 340.99 OTHER PRODUCTION PLANT - COMBINED CYCLE p. p. 81
ACCOUNT 340.99 OTHER PRODUCTION PLANT - COMBINED CYCLE YEAR (1) ORIGINAL COST (2) CALCULATED ACCRUED (3) ALLOC. BOOK RESERVE (4) FUTURE BOOK ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7) TUFTS COVE CT UNIT 5 INTERIM SURVIVOR CURVE IOWA 30-...

AI summary The document provides details about Account 340.99, which relates to Other Production Plant - Combined Cycle, including information about Tufts Cove CT Unit 5, its interim survivor curve, probable retirement year, and net salvage percentage.

ACCOUNT 353.00 STATION EQUIPMENT p. p. 81
ACCOUNT 353.00 STATION EQUIPMENT YEAR (1) ORIGINAL COST (2) CALCULATED ACCRUED (3) ALLOC. BOOK RESERVE (4) FUTURE BOOK ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7) SURVIVOR CURVE IOWA 45-R2.5 NET SALVAGE PERCENT20 1967 25,823.80 26,402 28...

AI summary The document presents a detailed table of financial data for Account 353.00 Station Equipment, including original costs, calculated accrued values, allocation book reserves, future book accruals, remaining life, and annual accruals across multiple years from 1967 to 2008. This appears to be an accounting and financial reporting record related to equipment depreciation and asset management.

Section 864 p. p. 81
1 Request IR-10: 2 - 3 Further to the request in IR-9, please confirm the date that NS Power began tracking actual - 4 retirements for each account and from which date simulated retirements were embedded in - 5 the retirement data. 6 7 Res...

AI summary The document requests confirmation on when NS Power began tracking actual retirements for each account and when simulated retirements were included in the data. The response indicates that the tracking date varies by electricity generating station type.

Notes: p. pp. 82-91
Notes: NSPI – 33 hydro plants on 17 river systems. First hydro plant in NS – online in 1903. Mostly small MW units. Most hydro plants owned by NSPI are 70+ years old. ~400 MW – Hydro plant capacity Wreck Cove – Largest hydro plant on syste...

AI summary The document discusses Nova Scotia Power Inc.'s (NSPI) hydroelectric infrastructure, including its 33 hydro plants, some over 70 years old, and plans to maintain them rather than decommission. It also outlines the Hydro Investment Plan (HIP), engineering inspections, and the retirement of older facilities like Harmony/Roseway. The Path to 2030 and 80% renewable energy by 2030 are highlighted, as well as the treatment of Wreck Cove, Mersey, and Tusket as perpetual assets for depreciation.

- And these are all ranked on a 1-5 scale (1 being the best, 5 being the worst) p. p. 82
- And these are all ranked on a 1-5 scale (1 being the best, 5 being the worst) В С D E condition (1 best, 5 wor SU Н Condition Parameter Confidence Score 1 2 3 4 Maintenance History (Corrective/ Maintenance Frequency) 0.5 Last C Maintenan...

AI summary The text presents a table evaluating transformer condition based on various parameters such as maintenance history, insulation aging, design issues, oil quality, dissolved gas analysis, and peak loading. Each parameter is ranked on a 1-5 scale, with 1 being the best and 5 the worst, and includes confidence scores and specific thresholds for each condition level.

• Decommissioning p. p. 91
• Decommissioning - o Stantec hired to update the 2020 decommissioning they did - Wind sites, marine terminals, biomass, thermal plants - o Another consultant is doing the decommissioning for their other sites - Hydro Sites - o Harmony - M...

AI summary The document outlines ongoing decommissioning activities by Stantec and another consultant for various sites, including wind, marine terminals, biomass, and thermal plants. It also discusses the status of decommissioning at Hydro Sites such as Harmony, Roseway, and Tusket, highlighting maintenance efforts and environmental investments. A meeting with several individuals was held on June 20, 2024.

ACCOUNT 310.99 STEAM PRODUCTION PLANT p. p. 48
ACCOUNT 310.99 STEAM PRODUCTION PLANT YEAR (1) ORIGINAL COST (2) ACCRUED (3) CALCULATED ALLOC. BOOK FUT. BOOK RESERVE (4) ACCRUALS (5) REM. LIFE (6) ANNUAL ACCRUAL (7) LINGAN - COMMON INTERIM SURVIVOR CURVE IOWA 60-L2 PROBABLE RETIREMENT Y...

AI summary This section of the document outlines Account 310.99, which pertains to the Steam Production Plant at Lingan. It includes details such as the probable retirement year of 2030, the net salvage percentage of 9%, and references to the Interim Survivor Curve Iowa 60-L2. The table format suggests it is related to asset management and financial planning.

Section 1552 p. pp. 48-180
6 7 These plans collectively inform NS Power's asset lifecycle strategies, including replacement, 8 refurbishment, and life extension decisions. Asset Management Plans (AMPs) are developed for 9 specific asset groupings (e.g., generation,...

AI summary The document discusses NS Power's asset lifecycle strategies, including replacement, refurbishment, and life extension decisions. Asset Management Plans (AMPs) are developed for specific asset groupings and include risk ratings, utilization forecasts, and maintenance strategies, which are reviewed and updated annually.

1 Introduction p. pp. 183-184
1 Introduction Nova Scotia Power Inc.'s (NS Power's) mission is that "We are proud to power Nova Scotia. Our customers count on us for safe, reliable and affordable electricity." NS Power is committed to supporting both the provincial and...

AI summary Nova Scotia Power Inc. (NS Power) outlines its mission to provide safe, reliable, and affordable electricity while supporting provincial and federal clean energy targets. NS Power's Asset Management approach has been assessed as 'mature' but requires further documentation and improvement to ensure compliance and continuous improvement.

3.2 Structure and Leadership p. pp. 189-190
3.2 Structure and Leadership NS Power's EAM division reports directly to its Chief Operating Officer (COO) through a Director, parallel with the Energy Delivery and Power Production divisions which are the "owners" of the majority of NS Po...

AI summary NS Power's EAM division is structured to report directly to the COO, with three departments focusing on risk and reliability, strategic asset planning, and AM operations. The division includes engineering, IT, financial, and other experts, and works with other teams like System Planning & Grid Integration and Reliability Implementation.

3.2.1 The System Planning & Grid Integration Division p. p. 190
3.2.1 The System Planning & Grid Integration Division The System Planning & Grid Integration division (hereafter referred to as the System Planning team) coordinates and executes mid- and long-term system modelling. These models inform the...

AI summary The System Planning & Grid Integration division is responsible for mid- and long-term system modelling, including the 10-year System Outlook and Integrated Resource Plan. It coordinates with stakeholders and considers factors like demand-side management, maintenance costs, and environmental limitations. The team also performs near-term planning studies and collaborates with other departments on asset management and grid improvements.

4 Asset Management Objectives p. pp. 190-192
4 Asset Management Objectives NS Power's Asset Management Objectives are derived from and shaped by organizational objectives. The following foundational objectives underpin NS Power's Asset Management practice: - Manage assets and asset i...

AI summary NS Power's Asset Management Objectives are aligned with organizational goals and include managing assets effectively, normalizing risk, sustaining productive capacity, leveraging reliability teams for planning, ensuring data accessibility, and meeting compliance requirements such as Nova Scotia Power Incorporated Performance Standards Regulations and NERC/NPCC Requirements.

6.2 Internal Stakeholders p. pp. 195-196
6.2 Internal Stakeholders Internal stakeholders have other unique needs and expectations. Examples include confidence that the assets they work with and on can be operated safely and reliably, that they have sufficient resources to complet...

AI summary Internal stakeholders have unique needs related to asset safety, resource sufficiency, and participation in decision-making. NS Power emphasizes organizational commitment to Asset Management, involving multiple departments beyond EAM, such as Procurement, Human Resources, and Safety, for its effective implementation and improvement.

7.2 Asset Management Plans p. p. 198
7.2 Asset Management Plans NS Power's Asset Management Plans (AMPs) are formulated for specific asset groupings and developed through the participation of Reliability Teams. The AMP template includes the following sections: - 1. Overview p...

AI summary NS Power develops Asset Management Plans (AMPs) for specific asset groupings, incorporating risk ratings, utilization factors, and maintenance strategies. Utilization Factor (UF) is introduced to better forecast generating unit demands, considering factors like service hours, cycles, and asset health. AMPs are used to optimize maintenance through predictive analytics and condition monitoring, focusing on critical assets.

8 Human Resources p. p. 198
8 Human Resources Human resource management, as it pertains to Asset Management practice, can be divided into several separate areas. - Asset Management System Function: As noted above, NS Power's Asset Management Pyramid considers roles r...

AI summary The section discusses human resource management within Asset Management at NS Power, covering areas such as the Asset Management System, capital project execution, operations and maintenance resourcing, and competency management. It highlights the importance of balancing resource constraints with risk and the use of tools like the Competency Management System (CMS) to ensure compliance and performance.

9.3 Asset Information p. p. 5
9.3 Asset Information Quality asset information, both static and dynamic, is critical to informing an understanding of asset condition and making risk-informed decisions. As noted in Section 4.2 above, the development of a Data Strategy is...

AI summary The document discusses the importance of quality asset information in making informed decisions and highlights NS Power's efforts in developing a Data Governance strategy. It emphasizes the need for integration and control of data across systems and mentions the importance of effective change management.

10.1 Internal Audit p. p. 7
10.1 Internal Audit As noted in the Asset Management Objectives, NS Power is planning to deploy Internal Audit processes for its Asset Management System by end of 2025, and details will be captured in an Asset Management Standard Operating...

AI summary NS Power plans to implement Internal Audit processes for its Asset Management System by the end of 2025, with details to be included in an Asset Management Standard Operating Practice (SOP). The SOP will outline the components of the system, as well as the frequency and approach to internal audits.

11 Looking Ahead p. p. 7
11 Looking Ahead This SAMP is informed by through organization objectives as well as strategic undertakings such as the IRP and 10YSO, though much remains uncertain in the coming years. The transition to cleaner energy and integration of r...

AI summary The document discusses future energy strategies in Nova Scotia, including the transition from coal to cleaner energy sources, integration of renewables, and the role of emerging technologies like AI and SmartGrid. The aging hydroelectric fleet and the need for grid-scale energy storage and synchronous condensers are also highlighted.

12 REFERENCES p. p. 7
12 REFERENCES - Asset Management Policy - Asset Management Playbook - Asset Management SOP Criticality Assessment (WIP) - Asset Management SOP Reliability Team Process (WIP) - Asset Management SOP AMP Template

AI summary The document references several asset management policies and procedures, including the Asset Management Policy, Playbook, and Standard Operating Procedures related to criticality assessment and reliability team processes.

Mapping of ISO 55000 to NSP Asset Management System Elements p. p. 7
Mapping of ISO 55000 to NSP Asset Management System Elements IAM 6-Box Conceptual AM Model NSPI Reference Associated Processes / Systems ISO 55001:2024 ISO 55000 Sections (Fig.4 in SAMP) AM System Component(s) (as applicable) Section 4 - C...

AI summary The document maps ISO 55000 standards to the Nova Scotia Power (NSP) Asset Management System, outlining how various ISO sections align with NSP components such as the SAMP, Playbook, SOPs, and associated processes like the Integrated Resource Plan (IRP), Annual Capital Expenditure (ACE), and Reliability Team Process.

Description of Notable Undertakings p. p. 7
Description of Notable Undertakings This document is intended to be a brief description of the Notable Undertakings for reference only. Any discrepancies or perceived inconsistencies with other documents are unintentional. These Undertakin...

AI summary This document serves as a brief description of Notable Undertakings within the Asset Management Framework and references Fig.5 in the SAMP. It is for informational purposes and may contain unintentional discrepancies with other documents.

NS Power's undergoes regular audit-like engagements with its insurance broker. The EAM team leads this engagement, and provides information ahead of these engagements, leads communication with p. p. 7
NS Power's undergoes regular audit-like engagements with its insurance broker. The EAM team leads this engagement, and provides information ahead of these engagements, leads communication with 2026-2027 GRA EMRYDIA IR-24 Attachment 1 Page...

AI summary NS Power undergoes regular audit-like engagements with its insurance broker, led by the EAM team, which provides information and communicates with the broker's representatives on asset management practices, performance, and programs.

1 Request IR-25: p. p. 7
NON-CONFIDENTIAL 1 Request IR-25: 25 applied professional judgment and considered net salvage statistics observed across the electric 26 utility industry to ensure the selected rates reflect both NS Power's historical experience and 27 bro...

AI summary NS Power uses a risk-based asset management mechanism to determine asset replacement, considering factors like asset condition, performance data, and regulatory requirements. This approach dynamically assesses asset life and salvage costs rather than relying on fixed estimates.

N-34Evidence - Dustin Madsen 7 passages
Section 63 p. p. 18
Having reviewed numerous electric transmission and distribution infrastructure investment plans across North America, my understanding is that electric transmission and distribution utilities are expected to both expand and replace aging i...

AI summary The text discusses the expectation for electric transmission and distribution utilities to expand and replace aging infrastructure to meet energy transition needs, noting that retiring material amounts of investment earlier than expected useful life is not common. It acknowledges that generation investments, such as those by NS Power, may need to be retired earlier than forecast.

Section 123 p. p. 59
In this case, Gannett Fleming is proposing a 65-L1.0 survivor curve for all steam production plant,[9](#page-64-1) and in particular for Lingan a probable retirement date of 2049 for all units except Lingan Unit 2. This reflects a life spa...

AI summary Gannett Fleming proposes a 65-L1.0 survivor curve for steam production plants, suggesting a retirement date of 2049 for Lingan units except Unit 2, which has a shorter lifespan of 48 years.

Q: Please elaborate on the peer review analysis you completed. p. pp. 69-72
Q: Please elaborate on the peer review analysis you completed. 3 A: As discussed above, the peer analysis I completed was only conducted for transmission, 355 POLES AND FIXTURES 268,176,042 6% 45 R1.5 55 18-75 -60 -48 356 OVERHEAD CONDUCTO...

AI summary The peer review analysis focused on transmission and distribution assets, including poles, conductors, station equipment, and communication systems. The data includes costs, percentages, and various metrics for different asset categories.

the next depreciation study. Specifically, I note the following statement regarding the lives p. p. 79
the next depreciation study. Specifically, I note the following statement regarding the lives 1 of towers in the management notes at page 33 of Emrydia IR-12 Attachment 1 "50-60 2 years for towers. Larger towers (e.g., Canso Crossing) – 60...

AI summary The text discusses the need to track and depreciate newly designed transmission towers with different service lives, referencing practices in Alberta and New Brunswick. It also provides details on Account 355.00 Poles and Fixtures, including investment amounts and depreciation curves recommended by NS Power and Gannett Fleming.

p. p. 88
1 Q: What are your observations based on the proposed Iowa curve? SURVIVOR CURVE RESID R MEAS ANGE OF FIT SURVIVOR CURVE RESID MEAS RANG FI 57.5-s0 7.23 7.69 53.2-s0.5 5.79 49.5-s0.5 50.0-S1 0 - 50 48.3-S1 5.28 47.8-S1.5 0 - 50 47.3-S1.5 4...

AI summary The text presents a table with data related to survivor curves, residual measurements, and ranges of fit, likely used in reliability or asset management analysis. The table includes values such as '57.5-s0', '43.9-S3', and '42.7-R4', along with associated metrics. Some entries are marked as 'NOT FITTED', while others show numerical ranges and measurements.

Section 151 p. p. 89
- Q: Please summarize the management notes for this account per NS Power's response to Emrydia IR-12 Attachment 1. - A: Gannett Fleming provided its notes for this account at pages 32 and 33 of Emrydia IR-12 Attachment 1, noting the follow...

AI summary The response to the question about management notes for an account refers to Gannett Fleming's notes on pages 32 and 33 of Emrydia IR-12 Attachment 1, which discuss retirement causes for overhead transmission conductors.

- o Age / condition. p. p. 89
- o Age / condition. 1 Deterioration o 25 conductor. For example, as shown above, the life of overhead conductor for Gannett 26 Fleming's peer group is 4 years longer on average than the life of poles and fixtures. 27 Similarly, Maritime E...

AI summary The text discusses the age and condition of overhead conductor and poles/fixtures, noting that conductor lifespans for certain utilities are significantly longer than those for poles and fixtures, with examples including Gannett Fleming's peer group, Maritime Electric, Newfoundland Power, and NB Power.

N-34-(iv)Exhibit DMM-4 - Revised Peer Review File 1 passage
Page 1 of 1 Exhibit DMM-4
Page 1 of 1 Exhibit DMM-4 Acc t oun Nu mb er Ac nt N cou am e Inv estm ent at 31 , 20 23 Dec Per t cen Inv estm ent at 31 , 20 23 Dec NS Po Li fe wer ima Est tes NS Po wer Cu Ty rve pe Lif e P eer Res ult Av era ge Lif e P eer Res ult Ra n...

AI summary The exhibit presents a table detailing investment and salvage estimates for various transmission and distribution assets, including land rights, station equipment, towers, poles, overhead conductors, and distribution assets, with associated percentages, ratings, and average results.

N-34-(v)Exhibit DMM-5 - Appendix AMi Depreciation Study Report 2024 - NB Power Distribution 2 passages
Section 30 p. pp. 16-18
The currently approved Iowa 45-R1 produced a related Residual Measure of 0.2436. The proposed Iowa 47-R1 produced a better mathematical fit with a related Residual Measure of 0.1831, as depicted above and on page 6-6. The visual fit of the...

AI summary The document discusses the use of the Iowa 47-R1 curve for asset life estimation, noting its better fit compared to the Iowa 45-R1. It also mentions the potential for a life extension due to the replacement of wooden crossarms with fiberglass, which is expected to increase service life. Concentric recommends the Iowa 47-R1 as a reasonable representation of future expectations for the investment account.

Section 72 p. pp. 48-50
The currently approved life parameter for this account is an Iowa 8-L4 with a Residual Measure of 1.4203. An Iowa 10-L3 provides a better visual and mathematical fit with a Residual Measure of 0.8114 as seen above and on page 6-238. Conver...

AI summary The document discusses the recommended change in the life parameter for an asset account, transitioning from an Iowa 8-L4 to an Iowa 10-L3 due to the expected lifecycle of tandem axle trucks, which are the majority of the investment in the account. This change is based on operational and management staff discussions and peer comparisons.

N-34-(vi)Exhibit DMM-6 - Appendix AMii - Depreciation Study Report 2024 - NB Power Transmission 5 passages
ACCOUNT 251.00 – TRASNSMISSION – STEEL STRUCTURES, CROSSARMS p. p. 16
ACCOUNT 251.00 – TRASNSMISSION – STEEL STRUCTURES, CROSSARMS Investment $ Investment % Previously Approved Curve Concentric Recommended Curve $136,493,582 20.18% 65-R5 65-R4 The investment in Transmission – Steel Structures, Crossarms is a...

AI summary The investment in Transmission – Steel Structures, Crossarms by NB Power is approximately $136.5 million, representing 20.18% of the total depreciated and amortized plant. The analysis of retirements and additions from 1932 to 2024 used the retirement rate method without a T-Cut, resulting in recorded retirements of $165,929.

ACCOUNT 251.07 – TRANSMISSION – WOOD POLE STRUCTURES p. p. 17
ACCOUNT 251.07 – TRANSMISSION – WOOD POLE STRUCTURES Investment $ Investment % Previously Approved Curve Concentric Recommended Curve $160,783,708 23.77% 60-R3 60-R3 The investment in Transmission – Wood Pole Structures is approximately $1...

AI summary The investment in Transmission – Wood Pole Structures is approximately $160.8 million, representing 23.77% of the total depreciated and amortized plant studied. The account includes all wooden pole structures in the NB Power system, with retirements between 1998 and 2024 analyzed using a T-Cut at 71, resulting in recorded retirements of $3,232,445.

ACCOUNT 131.04 – GENERAL PROPERTY – TRUCKS, CHASSIS AND BODY – OVER 1 TON p. p. 37
ACCOUNT 131.04 – GENERAL PROPERTY – TRUCKS, CHASSIS AND BODY – OVER 1 TON Investment $ Investment % Previously Approved Curve Concentric Recommended Curve $25,028,442 12.30% 8-S3 10-L3 The investment in General Property – Trucks, Chassis a...

AI summary The investment in General Property – Trucks, Chassis and Body – Over 1 Ton is approximately $25 million, representing 12.30% of the total depreciated and amortized plant studied. The account includes single and tandem axle trucks with aerial devices, and retirements between 1997 and 2024 were used to develop depreciation parameters without a T-Cut.

Section 71 p. pp. 39-41
The currently approved life parameter for this account is an Iowa 12-L1.5 which produces a Residual Measure of 0.8903. The recommended Iowa 15-L1.5 provides a better mathematical and visual fit with a Residual Measure of 0.3015 as seen abo...

AI summary The text discusses the recommendation to use the Iowa 15-L1.5 life parameter for an account, based on a better mathematical fit and alignment with operational staff's insights and industry peer reviews. The current parameter, Iowa 12-L1.5, has a higher residual measure, and the recommended parameter aligns with NB Power's 15-year lifecycle for similar assets.

Account Account Description Survivor Curve Investment Percentage Original Cost as of March 31, 2024 Calculated Reserve Book Reserve Future Accrual p. p. 46
\ Denotes Accounts Written up in Section 3 of the Depreciation Study Report Account Account Description Survivor Curve Investment Percentage Original Cost as of March 31, 2024 Calculated Reserve Book Reserve Future Accruals Annual Accrual...

AI summary This table outlines various accounts related to infrastructure and asset management, including line surveys, rights of ways, fencing, and steel structures. It provides details such as survivor curves, investment percentages, original costs, reserves, and annual accrual rates. Certain accounts are marked as written up in Section 3 of the Depreciation Study Report.

N-34-(vii)Exhibit DMM-7 - 2020 Depreciation Study Filed July 29, 2021 1 passage
Preamble p. pp. 0-123
Estimated service lives for a number of the distribution and transmission asset groups were extended while some were shortened to reflect recent retirement data. The net salvage percentage for a number of the distribution and transmission...

AI summary The document discusses updates to estimated service lives and salvage percentages for distribution and transmission assets, and notes that the depreciation rate for the Charlottetown Steam Plant will not be adopted due to its decommissioning. The Company will present its recommendations in the next General Rate Application.

N-34-(viii)Exhibit DMM-8 - From NP - 2022-2023 General Rate Application - Volume 3 - 2021-05-27 22 passages
FIGURE 9. ILLUSTRATION OF THE MATCHING OF AN ORIGINAL SURVIVOR CURVE WITH AN L1, S0 AND R1 IOWA TYPE CURVE ORIGINAL AND SMOOTH SURVIVOR CURVES p. p. 34
FIGURE 9. ILLUSTRATION OF THE MATCHING OF AN ORIGINAL SURVIVOR CURVE WITH AN L1, S0 AND R1 IOWA TYPE CURVE ORIGINAL AND SMOOTH SURVIVOR CURVES PART III. SERVICE LIFE CONSIDERATIONS PART III. SERVICE LIFE CONSIDERATIONS

AI summary This section introduces Part III, which focuses on service life considerations, likely discussing the lifespan of assets and their implications for planning and maintenance.

Section 83 p. p. 43
for these facilities were based on current Company policies and outlook as determined during field review, discussions with management and the range of estimates from other electric utility companies. The range of life spans for other simi...

AI summary The life span estimates for electric facilities are based on company policies, field reviews, and discussions with management. These estimates vary across companies and depend on factors such as economic attractiveness, operating characteristics, and refurbishing, rather than physical condition alone.

ACCOUNT 322.00 - BUILDINGS AND STRUCTURES p. pp. 89-92
ACCOUNT 322.00 - BUILDINGS AND STRUCTURES PLACEMENT BAND 1904-2018 EXPERIENCE BAND 1948-2018 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL...

AI summary The text presents a table detailing exposure and retirement data for buildings and structures over different age intervals, including exposure counts, retirements, and survival rates. This data is likely used for assessing the aging and replacement needs of infrastructure.

ACCOUNT 323.00 - CANALS, PENSTOCKS, SURGE TANKS AND TAILRACES p. pp. 95-96
ACCOUNT 323.00 - CANALS, PENSTOCKS, SURGE TANKS AND TAILRACES PLACEMENT BAND 1913-2018 EXPERIENCE BAND 1948-2018 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL R...

AI summary The document presents a detailed table tracking the exposure, retirements, and survival rates of infrastructure assets (canals, penstocks, surge tanks, and tailraces) over time, with data spanning from 1913 to 2018. The table includes metrics such as exposure at the beginning of each age interval, retirements during the interval, and survival percentages.

ACCOUNT 326.00 - SWITCHING, METERING AND CONTROL EQUIPMENT p. pp. 107-108
ACCOUNT 326.00 - SWITCHING, METERING AND CONTROL EQUIPMENT PLACEMENT BAND 1918-2018 EXPERIENCE BAND 1948-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO PCT SURV B...

AI summary The text presents a table detailing exposure and retirement data for switching, metering, and control equipment over time, including exposure at the beginning of age intervals, retirements during intervals, and survival ratios. This data is likely used for asset management and planning.

ACCOUNT 326.00 - SWITCHING, METERING AND CONTROL EQUIPMENT ORIGINAL LIFE TABLE, CONT. p. pp. 108-109
ACCOUNT 326.00 - SWITCHING, METERING AND CONTROL EQUIPMENT ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1918-2018 EXPERIENCE BAND 1948-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT...

AI summary This document presents data on the original life table for switching, metering, and control equipment, detailing exposure, retirements, and survival rates across different age intervals from 1918 to 2018. It includes statistical information on equipment longevity and retirement trends.

ORIGINAL LIFE TABLE, CONT. p. pp. 116-152
ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1918-2015 EXPERIENCE BAND 1948-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO PCT SURV BEGIN OF INTERVAL 79.5 80.5 81.5...

AI summary The text presents a continuation of an original life table, including exposure data, retirement ratios, and survival ratios across different age intervals. It also references 'NEWFOUNDLAND POWER INC. ACCOUNT 331.00 - BUILDING AND STRUCTURES ORIGINAL AND SMOOTH SURVIVOR CURVES', indicating a focus on infrastructure and asset management.

ACCOUNT 331.00 - BUILDING AND STRUCTURES p. pp. 118-119
ACCOUNT 331.00 - BUILDING AND STRUCTURES PLACEMENT BAND 1945-2018 EXPERIENCE BAND 1953-2018 AGE AT EXPOSURES AT RETIREMENTS PCT SURV BEGIN OF BEGINNING OF DURING AGE RETMT SURV BEGIN OF INTERVAL AGE INTERVAL INTERVAL RATIO RATIO INTERVAL 0...

AI summary The text presents a table detailing exposure and retirement data for buildings and structures over different age intervals, including numbers of retirements, survival ratios, and percentages of survival. The data spans from 1945 to 2018 and provides insights into the aging and retirement patterns of infrastructure.

ACCOUNT 333.00 - PRIME MOVERS, GENERATORS AND AUXILIARIES ORIGINAL LIFE TABLE, CONT. p. p. 125
ACCOUNT 333.00 - PRIME MOVERS, GENERATORS AND AUXILIARIES ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1941-2018 EXPERIENCE BAND 1942-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT R...

AI summary The document presents a life table for prime movers, generators, and auxiliaries, showing exposure, retirements, and survival ratios across different age intervals from 1941 to 2018. It highlights significant retirements at certain intervals and survival percentages.

Section 188 p. pp. 125-127
NEWFOUNDLAND POWER INC. ACCOUNT 341.00 - SUBSTATION - BUILDINGS AND STRUCTURES ORIGINAL AND SMOOTH SURVIVOR CURVES

AI summary The document references Account 341.00 related to substation buildings and structures, including original and survivor curves, and includes a figure from page 127.

ACCOUNT 342.00 - SUBSTATION - EQUIPMENT p. pp. 129-132
ACCOUNT 342.00 - SUBSTATION - EQUIPMENT PLACEMENT BAND 1924-2018 EXPERIENCE BAND 1948-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO PCT SURV BEGIN OF INTERVAL 0....

AI summary The table presents data on the retirement and survival rates of substation equipment over time, including exposure numbers, retirements, and survival ratios for different age intervals from 0.0 to 38.5 years.

ACCOUNT 350.01 - TRANSMISSION - ROW CLEARING AND EASEMENT SURVEY ORIGINAL LIFE TABLE, CONT. p. p. 135
ACCOUNT 350.01 - TRANSMISSION - ROW CLEARING AND EASEMENT SURVEY ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1946-2018 EXPERIENCE BAND 2009-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL...

AI summary The document presents a life table for transmission infrastructure, specifically focusing on row clearing and easement survey data from 1946 to 2018. It includes exposure data, retirements, survival ratios, and percentages of survival across different age intervals.

ACCOUNT 361.13 - OVERHEAD CONDUCTORS - WEATHER-PROOF ALUMINUM p. pp. 158-159
ACCOUNT 361.13 - OVERHEAD CONDUCTORS - WEATHER-PROOF ALUMINUM PLACEMENT BAND 1967-2013 EXPERIENCE BAND 1967-2013 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO PCT SUR...

AI summary The document presents a table detailing the aging and retirement rates of weather-proof aluminum overhead conductors from 1967 to 2013, including exposure numbers, retirements, and survival ratios across various age intervals.

ACCOUNTS 361.14 AND 361.30 - AERIAL CABLE AND SPECIAL INSULATED COPPER CABLE ORIGINAL LIFE TABLE, CONT. p. p. 162
ACCOUNTS 361.14 AND 361.30 - AERIAL CABLE AND SPECIAL INSULATED COPPER CABLE ORIGINAL LIFE TABLE, CONT. PLACEMENT BAND 1957-2014 EXPERIENCE BAND 1957-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING A...

AI summary The text presents data tables related to the original life tables for aerial cable and special insulated copper cable, as well as underground cables and switches. It includes exposure, retirements, survival ratios, and other statistical measures over specific time intervals.

ACCOUNTS 361.20 AND 367.20 - UNDERGROUND CABLES AND SWITCHES p. pp. 164-165
ACCOUNTS 361.20 AND 367.20 - UNDERGROUND CABLES AND SWITCHES PLACEMENT BAND 1947-2018 EXPERIENCE BAND 1956-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO PCT SURV...

AI summary The document presents a detailed table of exposure and retirement data for underground cables and switches, spanning from 1947 to 2018. It includes metrics such as exposures at the beginning of age intervals, retirements during intervals, retirement ratios, survival ratios, and percentages of survival at the beginning of intervals. This data is likely used for asset management and infrastructure planning.

ACCOUNTS 362.10, 362.20 AND 361.10 - WOOD POLES AND OVERHEAD CONDUCTORS - BARE COPPER p. pp. 168-169
ACCOUNTS 362.10, 362.20 AND 361.10 - WOOD POLES AND OVERHEAD CONDUCTORS - BARE COPPER PLACEMENT BAND 1929-2018 EXPERIENCE BAND 1948-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT...

AI summary The document presents a table with data on wood poles and overhead conductors, including exposure numbers, retirements, and survival rates across different age intervals from 1929 to 2018. This data appears to be used for asset management and infrastructure planning purposes.

Section 241 p. p. 169
ACCOUNTS 362.10, 362.20 AND 361.10 - WOOD POLES AND OVERHEAD CONDUCTORS - BARE COPPER

AI summary The document text refers to specific accounts related to wood poles and overhead conductors made of bare copper, likely in the context of utility infrastructure or regulatory accounting.

ACCOUNTS 364.10, 364.11, 364.2, 364.3 AND 364.4 - LINE TRANSFORMERS p. pp. 178-179
ACCOUNTS 364.10, 364.11, 364.2, 364.3 AND 364.4 - LINE TRANSFORMERS PLACEMENT BAND 1956-2018 EXPERIENCE BAND 2009-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RATIO P...

AI summary This document presents a table detailing the exposure and retirement data for line transformers across different age intervals from 1956 to 2018. The data includes exposure at the beginning of each age interval, retirements during the interval, and survival rates.

ACCOUNTS 366.30 AND 366.40 - INSTRUMENT TRANSFORMERS AND METERING TANKS p. pp. 192-196
ACCOUNTS 366.30 AND 366.40 - INSTRUMENT TRANSFORMERS AND METERING TANKS PLACEMENT BAND 1938-2018 EXPERIENCE BAND 1950-2018 AGE AT BEGIN OF INTERVAL EXPOSURES AT BEGINNING OF AGE INTERVAL RETIREMENTS DURING AGE INTERVAL RETMT RATIO SURV RAT...

AI summary The document presents a table detailing the aging and retirement rates of instrument transformers and metering tanks from 1938 to 2018, with data on exposures, retirements, and survival ratios across various age intervals.

Section 285 p. pp. 7-9
ACCOUNTS 378.30 AND 378.40 - TRANSPORTATION - TRUCKS WITH DERRICKS AND LINE AND STAKE BODIES

AI summary The document references accounts 378.30 and 378.40 related to transportation costs for trucks with derricks and line and stake bodies, indicating a focus on specific asset categories within transportation expenses.

ACCOUNT 362.40 - DISTRIBUTION - STEEL TOWERS p. p. 51
ACCOUNT 362.40 - DISTRIBUTION - STEEL TOWERS COST OF G R O S S S A L V A G E NET YEAR REGULAR RETIREMENTS REMOVAL AMOUNT PCT REUSE AMOUNT PCT FINAL AMOUNT PCT SALVAGE AMOUNT PCT 2017 2018 TOTAL 38,068 0 0 0 0 THREE-YEAR MOVING AVERAGES 77-...

AI summary The text presents a table detailing distribution-related steel tower retirements, removals, reuse, and salvage amounts over various years, including three-year moving averages. The data appears to be part of a financial or asset management report for a utility company.

SUBSTATIONS - ALL ACCOUNTS p. p. 93
SUBSTATIONS - ALL ACCOUNTS REGULAR REMOVAL REUSE FINAL SALVAGE YEAR RETIREMENTS AMOUNT PCT AMOUNT PCT AMOUNT PCT AMOUNT PCT 2017 4,475,685 1,363,407 30 0 0 1,363,407- 30- 2018 4,516,310 1,333,734 30 0 51 0 1,333,683- 30- TOTAL 46,529,537 1...

AI summary The text provides a detailed breakdown of substation retirements, including amounts and percentages for various years and three-year moving averages, highlighting financial and operational data related to asset management and infrastructure planning.

N-48Direct testimony of Jacob Pous 8 passages
25 SECTION II: DEPRECIATION – GENERAL p. p. 49
25 SECTION II: DEPRECIATION – GENERAL 26

AI summary This section of the document introduces Section II, which focuses on depreciation. It sets the stage for a detailed discussion on depreciation-related topics, including accounting standards, asset management, and regulatory considerations.

11 Q. WHAT ARE THE COMPANY'S SPECIFIC PROPOSALS? p. p. 49
11 Q. WHAT ARE THE COMPANY'S SPECIFIC PROPOSALS? 12 A. The Company states that it "has proposed to maintain the useful lives as adopted in 13 the 2003 UARB approved settlement agreement with the exception of Trenton 5, Tusket, and Victoria...

AI summary The Company proposes to maintain the useful lives of assets as adopted in the 2003 UARB approved settlement agreement, except for the Trenton 5, Tusket, and Victoria Junction Combustion Turbines.

13 Q. WHO PERFORMED THE PRODUCTION PLANT DECOMMISSIONING COST 14 ESTIMATE STUDIES? p. p. 49
13 Q. WHO PERFORMED THE PRODUCTION PLANT DECOMMISSIONING COST 14 ESTIMATE STUDIES? 15 A. The Company employed Stantec, Inc., to perform decommissioning studies for its 16 Steam and Other Production plants. For its Hydro and Wind Production...

AI summary The Company used Stantec, Inc. for decommissioning studies on Steam and Other Production plants and J.B. Yates Engineering for Hydro and Wind Production plants.

14 Q. IS THE COMPANY'S PRESENTATION OF DECOMMISSIONING ACTIVITIES 15 REPRESENTATIVE OF THE VARIOUS TERMINAL RETIREMENT OPTIONS? p. p. 49
14 Q. IS THE COMPANY'S PRESENTATION OF DECOMMISSIONING ACTIVITIES 15 REPRESENTATIVE OF THE VARIOUS TERMINAL RETIREMENT OPTIONS? 16 A. No. The Company's proposal for decommissioning its plant and removing all 17 facilities, as well as remov...

AI summary The company's decommissioning proposal represents the worst-case scenario among various terminal retirement options, indicating it may not be the most optimal or representative approach.

2 Q. ARE THE PROPOSED SITE-RELATED RESTORATION COSTS REASONABLE 3 AND APPROPRIATE? p. p. 49
2 Q. ARE THE PROPOSED SITE-RELATED RESTORATION COSTS REASONABLE 3 AND APPROPRIATE? 4 A. No. First, it must be noted that neither Stantec nor Yates have provided support for 5 any site restoration costs. More important is the fact that the...

AI summary The proposed site-related restoration costs are deemed unreasonable and inappropriate as they lack support from Stantec and Yates, and the increased land value from the sale is not accounted for in the decommissioning cost estimate. The request for site improvement costs is also criticized as unrealistic for depreciation purposes.

17 Q. PLEASE SUMMARIZE THE CONCERNS IDENTIFIED IN REVIEW OF THE 18 COMPANY'S PROPOSED PRODUCTION PLANT NET SALVAGE. p. p. 49
17 Q. PLEASE SUMMARIZE THE CONCERNS IDENTIFIED IN REVIEW OF THE 18 COMPANY'S PROPOSED PRODUCTION PLANT NET SALVAGE. 19 A. The Company has commissioned two different entities to perform limited 20 decommissioning cost estimates. These entit...

AI summary The Company's proposed net salvage for its production plant has been questioned due to inadequate decommissioning cost estimates, unjustified contingency and inflation assumptions, and failure to consider alternatives. Past experience shows actual costs were significantly lower than estimated.

21 A. For the nine accounts reviewed, I am recommending changes to the following three 22 mass property accounts: p. p. 79
21 A. For the nine accounts reviewed, I am recommending changes to the following three 22 mass property accounts: Account NSPI Proposal DUCI Recommendation Difference 356 – Transmission Overhead Conductors and Devices (10) (5) 5 365 – Dist...

AI summary The text discusses recommendations for changes to three mass property accounts related to transmission and distribution overhead conductors and devices. The proposed changes by NSPI and DUCI differ in magnitude for each account.

UTILITY RATE PROCEEDINGS IN WHICH TESTIMONY HAS BEEN PRESENTED BY JACOB POUS p. p. 79
UTILITY RATE PROCEEDINGS IN WHICH TESTIMONY HAS BEEN PRESENTED BY JACOB POUS ALASKA 54 Tufts Cove CT Unit 4 $ 42,424,316 (3) $ (1,272,729) $ 10,032,974 $ 33,664,071 33.84 $ 994,779 2.34% 55 Tufts Cove CT Unit 5 $ 31,392,980 (3) $ (941,789)...

AI summary The text presents financial and asset-related data from utility rate proceedings, including production plant totals, depreciation, and asset details such as transmission plant, land rights, and station equipment. The data includes figures for Tufts Cove CT Units 4 and 5, as well as other production assets.

N-59Response to Undertaking 12 - Revised with attachments 2 passages
2026-2027 GRA U-12 Attachment 1 Page 5 of 172 p. p. 5
2026-2027 GRA U-12 Attachment 1 Page 5 of 172 AccountNuGroupNumProbableRProbableRGivenASL CurveNamNetSalvag OriginalCost CalculatedAccrued BookReserve FutureAccruals Composite AnnualAccrual AnnualAccInServiceM 39300 0 12 0 20 SQ 18,816.09...

AI summary The text presents a table with financial data related to asset management, including original costs, calculated accrued values, book reserves, future accruals, and annual accruals. It includes specific account numbers and monetary figures, likely used for regulatory analysis or financial reporting purposes.

CalculationYear CalculationCalculationProcedureName RemainingMinRlValueMinRlValueAverageAge AccountNumberCalculationYearCalculationProcedureName p. p. 5
CalculationYear CalculationCalculationProcedureName RemainingMinRlValueMinRlValueAverageAge AccountNumberCalculationYearCalculationProcedureName 2046 9 EqualLifeGroup RL_Allocat 0 0 15.69335 0.00 366002046EqualLifeGroup 2050 9 ASL_BG RL_Al...

AI summary The text presents a table with data related to calculation years, procedures, remaining minimum RL values, average ages, account numbers, and other attributes. The data appears to be related to regulatory proceedings, possibly concerning asset management or resource allocation.

N-62Hydro Quebec Climate Plan 1 passage
TIME HORIZONS p. p. 35
TIME HORIZONS The useful service life of Hydro-Québec's assets varies greatly. For example, wooden poles in the distribution system have a useful service life of 50 to 60 years, compared to about 120 years for an embankment dam. To assess...

AI summary The useful service life of Hydro-Québec's assets varies significantly, with wooden poles lasting 50 to 60 years and embankment dams up to 120 years. Three time horizons were selected to assess risk over appropriate periods for each asset category and evaluate changes in risk levels over time.

N-67Response to Undertaking U-4 - Combined Redacted Only 1 passage
EXHIBIT 3 PAGE 5 OF 5
EXHIBIT 3 PAGE 5 OF 5 (1) TOTAL COMPANY (2) DOMESTIC (3) SMALL GENERAL (4) GENERAL (5) GENERAL LARGE (6) SMALL INDUSTRIAL (7) MEDIUM INDUSTRIAL (8) INDUSTRIAL LARGE (9) PHP (10) MUNICIPAL (11) UNMETERED (12) ALLOCATION FACTOR (24) (23) DIS...

AI summary The text presents a table with various financial and asset-related categories, including distribution plant, general property plant, working capital, and material and supplies. The table includes values for different customer classes and allocation factors, with some rows referencing exhibits and other notes.

N-69Response to Undertaking U-10 - Redacted 1 passage
REDACTED p. p. 1
REDACTED 1 Undertaking U-10: 2 3 To provide the Yates Report. 4 5 Response U-10: 6 7 Please refer to Redacted Attachment 1 for a copy of the 2018 Yates Hydro 8 Decommissioning Report. REDACTED Hydro Asset Study Appendix C Page 1 of 143 RED...

AI summary The text references an undertaking to provide the Yates Report and a response directing to a redacted attachment containing the 2018 Yates Hydro Decommissioning Report. The content is partially redacted and includes a reference to an asset study appendix.

N-92Compliance Filing - Standardized Filings - Redacted 2 passages
Section 128
18.6% 0.0% 0.0% (56) DISTRIBUTION - Land - - - - - 0.0% 0.0% 0.0% 0.0% (57) DISTRIBUTION - Easements 2,995 - - 2,995 - 0.0% 0.0% 0.9% 0.0% (58) DISTRIBUTION - Other 1,328 - - 1,328 - 0.0% 0.0% 0.4% 0.0% (59) DISTRIBUTION - Substations 8,86...

AI summary The text presents a table with distribution-related line items, including land, easements, substations, poles, and transformers, along with associated costs and percentages. The data appears to be related to asset management and infrastructure planning within the utility sector.

Section 186
2,966 GENERATION BATTERIES 0 RADIAL TO GENERATION TRANS. 2,627 (34) (35) NET THERMAL O&M D&E SPLIT $148,543 (36) (37) THERMAL O&M DMD. ALLOC. % 45.25% (38) THERMAL O&M ENG. ALLOC. % 54.75% (39) (40) BIOMASS DEMAND ALLOC % 45.25% (41) (42)...

AI summary The text provides a breakdown of various allocation percentages and financial figures related to generation, transmission, and distribution costs. It includes O&M (operations and maintenance) allocations for thermal, biomass, and wind energy, as well as property allocations for different segments of the power system.

101354Board Decision 25 passages
1.0 SUMMARY p. p. 7
fect its FFO:Debt credit metrics and risk a credit downgrade. As Morrison Park noted, a further credit downgrade would have serious longterm cost consequences resulting in higher costs for ratepayers. [23] The Board has also issued several...

AI summary The Board directed NS Power to update depreciation studies, report on hydro plant decommissioning consultations, and address cost-of-service concerns. A credit downgrade risk, noted by Morrison Park, could increase ratepayer costs. Synapse's application and distribution cost allocation methods are also under review.

3.3.1.1 Findings p. p. 53
[105] First, this general rate application has served as a thorough review of NS Power's operations. In terms of the Board's process, several expert consultants were engaged by Board Counsel to review different aspects of the application....

AI summary The NSUARB reviewed NS Power's general rate application, noting thorough consultant reviews of OM&G costs and benchmarking. A settlement agreement followed negotiations with customer groups. Ongoing reviews include FAM audits, performance metrics, and a 5-Year Reliability Plan. An inquiry under the Public Utilities Act into NS Power's assets was initiated, but no savings review was ordered.

3.4 Depreciation p. pp. 62-63
3.4 Depreciation [119] Depreciation, in public utility regulation, is the loss in service value of an asset not restored by current maintenance, incurred in connection with the consumption or prospective retirement of the asset. As used in...

AI summary Depreciation in public utility regulation refers to the allocation of fixed capital costs over an asset's service life. Expert judgment is required to select procedures, methods (e.g., straight-line depreciation), and techniques (whole life vs. remaining life) to calculate depreciation expense accurately. Both techniques should theoretically yield equivalent results when all factors are equal.

Rates of utility to include allowance for depreciation p. p. 63
Rates of utility to include allowance for depreciation 41 In fixing rates, tolls and charges to be paid to a public utility for any service, the Board shall include proper allowances for depreciation. [122] NS Power owns significant assets...

AI summary The Nova Scotia Utility and Review Board (NSUARB) mandates that utility rates include depreciation allowances. NS Power uses asset pools to track depreciation, recovering original costs and salvage expenses over asset lifetimes. The Public Utilities Act (PUA) permits recovery of prudently incurred costs, including depreciation, from customers.

3.4.1.2 Estimated Average Asset Service Lives p. pp. 74-76
3.4.1.2 Estimated Average Asset Service Lives [151] Key elements influencing the determination of depreciation expense are average asset service lives and survivor curves. Survivor curves (also referred to as Iowa curves) are a series of c...

AI summary The document discusses methods for estimating average asset service lives using survivor curves, with changes made via the GRA settlement agreement. Gannett Fleming's study informed these estimates, but Mr. Madsen disputed certain curve selections, proposing alternatives. Adjustments to service lives for specific accounts reduced NS Power's depreciation rates.

3.4.1.3.2 Adjustments to Net Salvage Rates p. p. 81
ivil structures, then it could be reasonable. But if there was a requirement to expand the scope like Tusket, then obviously the investment would be higher. [Transcript, January 7, 2026, pp. 299-302] - [181] The Board understands the posit...

AI summary The Board expresses concerns about partial decommissioning of hydro systems, citing Tusket's experience as a cautionary example. It warns that decommissioning costs for other systems could exceed current estimates, leading to intergenerational inequity. The Board also questions who should bear ongoing maintenance costs for unused infrastructure, such as dams and spillways, after decommissioning.

3.4.1.3.3 Adjustments to Estimated Asset Average Service Lives p. pp. 81-93
3.4.1.3.3 Adjustments to Estimated Asset Average Service Lives [190] In his evidence, Mr. Madsen proposed a number of changes to Gannett Fleming's recommended estimated asset average service lives. This is discussed in more detail in secti...

AI summary The Board rejects Mr. Madsen's proposed changes to asset service lives but approves specific settlement agreement adjustments for Accounts 353 (Transmission Station Equipment) and 390.10 (General Plant Structures). These changes align partially with Mr. Madsen's recommendations and peer data, deemed appropriate for the current GRA.

3.4.2 Calculation of Depreciation Expense (ELG vs. ALG) p. p. 93
charged in any one period may vary by virtue of the procedure selected, the total amount of depreciation recovered over the full life of the asset will not vary regardless of which procedure is used. [195] Gannett Fleming's depreciation st...

AI summary The text compares ELG and ALG depreciation methods. Gannett Fleming argues ELG better aligns depreciation with asset retirement patterns, while Mr. Madsen supports ALG for its gradual, equitable recovery, especially with longer asset lives. Both methods ensure total depreciation recovery over an asset's life.

3.4.2.1 Findings p. p. 98
19] The Board will first address the issues raised in NS Power's framing. The Board will then address intergenerational equity, which it believes is also an important issue in assessing ALG vs. ELG. [205] As it relates to a procedure that...

AI summary The Board evaluates ALG vs. ELG procedures, emphasizing intergenerational equity. Mr. Wiedmayer testified that NS Power combines actual and simulated aging data for depreciation, claiming this aligns with accepted practices. Simulated data fills gaps where historical records are incomplete.

3.4.3.1 Findings p. p. 117
for the Board to decide is whether Mr. Madsen's recommendations are warranted. [246] During the hearing, Mr. Wiedmayer was questioned about the average service life changes recommended by Mr. Madsen: MEMBER MURPHY: This is my last question...

AI summary The proceeding examines a dispute over asset service life curves for transmission poles, with Mr. Madsen recommending a 50-R2.5 curve versus Mr. Wiedmayer's 45-R1.5. Member Murphy questions why the existing curve is preferred despite data misalignment after year 30, highlighting discrepancies in curve fitting and retirement data analysis.

hearing testimony: p. p. 117
for Nova Scotia Power. We're not looking at actual retirement data, which is why I need to assign the weight to the simulated data that I can, and in my opinion, I would not assign significant weight. Now again, if the simulated data was s...

AI summary Testimony discusses Nova Scotia Power's use of simulated data for asset lifespans, arguing it lacks alignment with actual retirement data and peer utility benchmarks. Mr. Madsen critiques NS Power's methodology, emphasizing inconsistencies and divergences from Atlantic Canadian peers.

3.4.6 Depreciation – Summary p. pp. 128-133
directs NS Power to file an updated depreciation study with its next general rate application. The Board expects that this depreciation study will address, but not be limited to, the following issues: - Depreciation expense and rate base i...

AI summary The Board directs NS Power to submit an updated depreciation study with its next general rate application, addressing issues like depreciation-rate base interaction, asset service lives, peer comparisons, and ALG/ELG analysis. The Board approves current asset service lives but requires addressing Mr. Madsen's recommendations and providing detailed documentation. Amortization accounting is approved for specific General Plant accounts.

3.5.1.1 Background p. p. 133
3.5.1.1 Background [281] Securitization was described by NS Power as the "centrepiece" of its general rate application and the settlement agreement. The practical impact of securitization in this matter is that it would result in ratepayer...

AI summary NS Power proposes securitization as a key element of its rate application, aiming to reduce financing costs for retiring coal plants under decarbonization policies. This process would lower customer financing rates by $90M over 2026-2027, restructure assets into debt, and improve credit metrics, though shareholders would lose returns on securitized assets.

3.5.1.2 Present Application p. p. 137
costs. Any such approach would not come at a cost to the Government of Nova Scotia. It is my hope that this work can be successfully completed within the year. [Exhibit N-7, Appendix 8F, PDF p. 650] [310] Further, NS Power noted that the D...

AI summary The document discusses the Decarbonization Deferral Account (DDA) established during the 2023-2024 GRA proceeding (M10431), aimed at managing costs from retired thermal assets. NS Power highlights the DDA as a step toward securitization, while Christine Runge from Power Advisory LLC emphasizes the need for more information on amortization periods and rate impacts before approval. The Board aligns with a future securitization process.

3.6.3 Valuation and "Writing Down" of the Rate Base p. pp. 170-171
3.6.3 Valuation and "Writing Down" of the Rate Base [377] The Department of Energy requests that the Board take steps to ensure that NS Power's coal assets are written down by an amount that the Board deems appropriate based on a transpare...

AI summary The Department of Energy requests the Nova Scotia Utility and Review Board to write down NS Power's coal assets, arguing their value is over-inflated and ratepayers should not subsidize outdated infrastructure. The Department attributes this to NS Power's failure to conduct timely depreciation studies and imprudent investments post-2016, despite knowing coal assets must retire by 2030.

Cost Allocation Concept p. p. 178
definite and immediately determinable. The accounting objectives of verifiability and neutrality are also satisfied. [Emphasis added] [ Depreciation Expense: A Primer for Utility Regulators , p. 12] [408] In 2022, the Public Utilities Act...

AI summary The 2022 amendment to the Public Utilities Act added s. 30(5), directing the Board to assess NS Power's assets. In 2023, the NSUARB initiated a proceeding, hiring consultants to review asset management and accounting policies. The Department's request under s. 30(2) is deemed duplicative of the ongoing proceeding under s. 30(5).

Property, Plant and Equipment p. p. 178
Property, Plant and Equipment Property, plant and equipment ("PP&E") are recorded at original cost, including allowance for funds used during construction ("AFUDC") or capitalized interest, net of contributions received in aid of construct...

AI summary The document outlines the accounting treatment for Property, Plant and Equipment (PP&E), including capitalization of costs, depreciation methods, and regulatory approvals for service lives. Intangible assets are amortized using straight-line methods with regulatory approval. Depreciation studies are approved by the Nova Scotia Utility and Review Board (UARB).

3.6.3.1.2 Assets No Longer "Used and Useful" and the Decarbonization Deferral Account p. pp. 178-187
3.6.3.1.2 Assets No Longer "Used and Useful" and the Decarbonization Deferral Account [419] Referring to "core ideas" from the UAD line of cases and their relevance to Nova Scotia, the Department submitted, "Once an asset is no longer used...

AI summary The Department argues that assets no longer 'used and useful' can be removed from rate base, with losses borne by shareholders. NS Power cites the Alberta Court of Appeal's 2023 decision in ATCO Electric Ltd. v Alberta Utilities Commission , which rejected binding precedent on stranded assets from natural disasters. The Court emphasized that legislation did not limit the AUC's discretion over depreciation or stranded assets, challenging prior assumptions.

Summary and Conclusion p. p. 187
within the discretion of the Commission, to be exercised consistently with the words of the Electric Utilities Act , having regard to all relevant considerations, while disregarding irrelevant ones. - [61] In conclusion, the decision under...

AI summary The text discusses judicial review of rate-setting decisions, emphasizing the Commission's discretion under the Electric Utilities Act and Public Utilities Act . It highlights errors in the original decision regarding asset recovery, leading to a redetermination by the AUC allowing recovery of destroyed assets' net book value. The Alberta Court of Appeal's ruling aligns with the NSUARB's approach to asset valuation.

[431] The Board went on to find: p. p. 191
etiring coal assets to be recovered from customers that are higher than they should have been. The second, is that NS Power unnecessarily invested in these assets in the face of impending retirements. [433] As discussed previously in this...

AI summary The Board critiques NS Power for overestimating coal asset retirement costs and unnecessary investments. It references a 2010 depreciation study settlement (M03665) that lowered rates, later implemented in 2011. NS Power's 2022 rate application omitted updated depreciation studies but proposed the DDA to address coal plant closures. Subsequent DDA proceedings saw no claims to reduce costs due to imprudent depreciation rates.

Radial to Generation p. p. 236
Radial to Generation NS Power proposes that radial-to-generation assets, as defined under the OATT, be re-functionalized from transmission to generation in the cost-ofservice study for consistent treatment of these assets under the transmi...

AI summary NS Power proposes re-functionalizing radial-to-generation assets from transmission to generation in the cost-of-service study to ensure consistent treatment under transmission pricing methodologies, align with North American utilities, and adhere to FERC's pro forma OATT design.

General Plant p. p. 236
General Plant General plant primarily consists of NS Power's investment in facilities, such as buildings structures and grounds, communication equipment, vehicles and information technology infrastructure. Currently, costs are apportioned...

AI summary NS Power proposes allocating general plant costs above $1 million to specific functions (e.g., transmission, distribution) using allocators like operating costs and rate base, differing from the current net book value-based allocation across generation, transmission, and distribution.

4.3 Climate Change Adaptation Plan p. p. 292
SS and Line Loss Study discussed later in this decision, the Board approves the deferral of the costs of developing this plan for recovery through rates after NS Power's next general rate application. [2023 NSUARB 12] [703] NS Power filed...

AI summary The Nova Scotia Utility and Review Board (NSUARB) approves deferring costs of NS Power's Climate Change Adaptation Plan until its next general rate application. NS Power filed the plan, emphasizing a consultative process involving the Climate Adaptation Leadership Program. The plan focuses on climate data integration into asset management but lacks detailed vulnerability assessments or mitigation timelines.

4.3.1 Findings p. pp. 292-294
4.3.1 Findings [707] The fact that NS Power compiles and analyzes climate data and uses this information in its asset management systems is positive. However, NS Power's Climate Change Adaptation Plan is more of a process than a plan per s...

AI summary The Board finds NS Power's Climate Change Adaptation Plan insufficient as it lacks transparency, stakeholder consultation, and detailed climate impact analysis. They direct a revision by October 1, 2026, incorporating elements like climate impact descriptions and adaptation measures.

4.4 Lingan Unit 2 and Trenton Unit 5 p. p. 295
is forecast to provide in the test period. It recommended that the proposed large increase in sustaining capital costs for Lingan 2 "be supplemented with additional narrative support" by the company. [715] In response to questions from Boa...

AI summary NS Power seeks to refurbish Lingan Unit 2 due to safety concerns, requesting additional narrative support for increased sustaining capital costs. The company cites NERC and NPCC requirements for system capacity and customer load service. Refurbishment delays risk consequential damages, and capital costs are not automatically approved with the GRA.

99706ECC (NSPI) IR-1 to IR-41 4 passages
Request IR-18:
Request IR-18: - Please prepare a table, by account, showing how the applied for and approved lives and net - salvage rates have varied from each depreciation study since the inception of NS Power. Please - also briefly describe why any su...

AI summary Request IR-18 seeks a table by account detailing variations in applied and approved asset lives and net salvage rates from each depreciation study since NS Power's inception, along with explanations for proposed changes to these parameters.

Request IR-23:
Request IR-23: - The following request is directed at NS Power. Please provide all internal management analysis - and study of the expected useful lives and salvage costs of each asset and a full description of - the factors influencing th...

AI summary Request IR-23 seeks internal analysis from NS Power on asset useful lives, salvage costs, and retirement factors. ELG (Equal Life Group) is referenced as an acronym. The proceeding involves regulatory oversight of utility asset management practices.

Request IR-25:
Request IR-25: - The following request is directed at NS Power. Please describe and provide copies of all decommissioning studies relied upon to support or inform the net salvage estimates of each - account, including any internal manageme...

AI summary Two requests (IR-25 and IR-26) directed at NS Power. IR-25 asks for decommissioning studies and explanations of variations from the Gannett Fleming report. IR-26 seeks internal engineering estimates of asset lifespans and salvage rates.

Request IR-35:
Request IR-35: - Please provide a detailed calculation of the supporting net book value of the Smart Grid Nova - Scotia assets as of January 1, 2026, including but not limited to all historically recovered - depreciation and net salvage re...

AI summary The document requests detailed calculations of the net book value of Smart Grid Nova Scotia assets as of January 1, 2026, including depreciation and salvage values, with supporting documentation in an Excel file.

99742Doane Grant Thornton (NSPI) IR 1 to 93 5 passages
Request IR-31:
Request IR-31: - Reference: N-6 2026-2027 GRA Direct Evidence Appendix 7C Page 33-34 of 58 - Per N-6, (Appendix 7C), page 33-34 of 58, we understand that labour expenses have increased - from 2024 compliance restated to 2026 forecast for "...

AI summary The text requests clarification on increased labor expenses for 'Enterprise asset management & project implementation' from 2024 to 2026, citing additional personnel due to EIT program expansion for risk mitigation, succession planning, and salary escalation. It asks for details on personnel needs and associated costs.

Request IR-46:
Request IR-46: - Reference: N-6 2026-2027 GRA Direct Evidence Appendix 7C Page 49-50 of 58 - Per N-6, (Appendix 7C), page 49-50 of 58, we understand that labour expense has increased - from 2024 actual to 2026 forecast for "administration"...

AI summary Request IR-46 seeks clarification on increased labor expenses for administration from 2024 to 2026, citing five new hires and salary escalations tied to Energy Delivery growth. The request asks for rationale behind these workforce and compensation changes.

Request IR-68:
Request IR-68: - Reference: N-11 C ii - With regards to the regulatory amortizations outlined in Exhibit N-11( C )-(ii) (2026-2027 GRA - DA-03 Att 1 Excel Confidential) which includes Non-standard meters, SmartGrid NS, - Annapolis Tidal Re...

AI summary Request IR-68 seeks background calculations for regulatory amortizations in Exhibit N-11(C)-(ii), including Non-standard meters, SmartGrid NS, Annapolis Tidal Retired Assets, Hurricane Fiona GRA Deferral, Deferred Decarbonization Asset, and Roseway Decommissioning, covering 2024A-2027F.

Request IR-73:
Request IR-73: - Reference: RB-01 - With regards to the rate base PPE continuity schedule (RB-01): - a) Please provide explanations for transfers to regulatory assets for all years. - b) Please provide explanations for the transfers to/fro...

AI summary Request IR-73 seeks explanations for transfers to regulatory assets and non-regulated assets in the rate base PPE continuity schedule (RB-01) for all years.

Request IR-81:
Request IR-81: - Reference: N-3 Page 59 - We understand that the net book value of thermal generating assets to be retired by 2030 are - included in the DDA and that no assets are expected to be retired during the test period. When - are t...

AI summary Inquiry about the retirement dates of thermal generating assets included in the DDA, noting that no assets are expected to be retired during the test period, with a focus on their anticipated retirement by 2030.

99745Synapse (NSPI) IR 1 to 11 1 passage
NON-CONFIDENTIAL INFORMATION REQUESTS
Filed: Oct. 22, 2025 Synapse (NSPI) Page 3 alternate version of the COSS (for each of 2026 and 2027) in which poles & fixtures and overhead & underground lines are classified as 100% demand-related.

AI summary The document requests an alternate version of the Cost of Service Study (COSS) for 2026 and 2027, proposing that poles, fixtures, and overhead/underground lines be classified as 100% demand-related. This adjustment aims to align capital expenditures with demand-driven cost allocations.

99748NSEB (NSPI) IR 1 to 152 5 passages
Request IR-42:
Request IR-42: - a) Please provide a listing showing the total number of 2026 forecast full-time equivalent employees (FTEs) included in each operating expense category compared to current (2025) actuals and the numbers included in the 202...

AI summary Request IR-42 seeks data on 2026 FTE forecasts compared to 2025 actuals and 2024 compliance filings, including variances and explanations for increases over 10%.

Request IR-58:
Request IR-58: - Reference: Exhibit N-6, Appendix 7A, page 7 of 37 - NS Power notes a significant increase in the utilization of thermal plants and combustion turbines, - which was 4,525 GWh estimated capacity and 6,148 GWh used capacity,...

AI summary NS Power notes increased utilization of thermal plants and combustion turbines, leading to higher operating expenses in 2024. The request asks for explanations, mitigation plans, and future expense projections.

Request IR-77:
Request IR-77: - Reference: Exhibit N-14, Op-03 Attachment 1, ScottMadden Report - On page 64 it is noted that NS Power's HR cost per FTE is 21% higher than the group median - and has increased 41% in nominal terms between 2019 and 2023. U...

AI summary NS Power's HR cost per FTE is 21% above the median and 41% higher since 2019, attributed to a skilled labor shortage in Canada. Questions are raised about the median cost, international recruitment, cost disparities with peers, and scholarship programs.

Request IR-88:
Request IR-88: - Reference: Exhibit N-5, Appendix 3A, p. 5 - NS Power states it intends to file an application seeking approval to decommission the Annapolis - Tidal Generation Facility in 2026 and recover the remaining net book value over...

AI summary NS Power plans to decommission the Annapolis Tidal Generation Facility in 2026 and recover the remaining net book value over ten years, including $2.6 million in the 2027 revenue requirement. The proceeding seeks clarification on the expected filing date and whether the approval and amortization period will be subject to regulatory determination, despite the forecast.

Request IR-89:
Request IR-89: - Reference: Exhibit N-3 GRA Direct Evidence, Section 9.2.1 Average Capital Assets - On pages 52-53 of its application, NS Power notes that it has removed approximately $700 million - from its rate base for the DDA assets (P...

AI summary NS Power removed $700 million from its rate base for DDA assets, citing securitization by 2026, and seeks to defer depreciation and return if delayed. Requests include documentation on securitization timelines, deferral costs, debt issuance breakdowns, and updates on retired assets, customer deposits, and unapproved capital items. The proceeding involves GRA, FAM, and RTR programs.

100770Closing Statement - CA 1 passage
13 C. Securitization
13 C. Securitization 14 15 A key feature of the GRA and the Settlement Agreement is the securitization of the thermal assets 16 of the Utility, which it values at approximately $700 million dollars. Securitization would remove 17 the net b...

AI summary The document discusses the securitization of Nova Scotia Power's thermal assets valued at $700 million, which would reduce its rate base and revenue requirements. However, securitization depends on provincial regulations yet to be issued. Nova Scotia Power seeks to defer costs until securitization is approved, but Premier Tim Houston has raised concerns about asset valuation. Failure to secure securitization could lead to revising the GRA and higher rates.

100776Closing Submission - DOE 6 passages
Overview p. pp. 1-2
that the Board Members hearing the matter have also thoroughly reviewed all of the material in advance of coming to a decision as to whether to approve the Agreement as being in the public interest. - 13. It is not clear that NS Power foll...

AI summary The Department challenges NS Power's rate application, alleging lack of transparency and closed-door negotiations. It argues the Board must independently assess the Consensus Agreement's public interest, ensuring rates are just and reasonable under the Act. Concerns include unaddressed asset valuations and limited hearing scope, with NS Power delaying the application until after negotiations.

Valuation of assets p. pp. 2-4
Valuation of assets 28. NS Power has only completed two depreciation studies in the last fifteen years. After the 2011 depreciation study, nothing further was filed until this proceeding. That is remarkable 5 Exhibit N-32, page 5, lines 19...

AI summary NS Power (NSPI) conducted only two depreciation studies in 15 years, with the last prior to 2011. The Department argues this gap likely caused over-inflated coal plant valuations and higher ratepayer costs, citing environmental legislation changes. The recent Gannet Fleming study omitted factors like 'stranded' costs and legislation.

Valuation is a serious issue. p. pp. 6-7
Valuation is a serious issue. - 42. The U.S. Supreme Court has established that regulated assets included in rate base must be "used and useful" in providing service to the public. Assets not meeting this threshold cannot be used in settin...

AI summary The document emphasizes the 'used and useful' principle for regulated assets in rate base determinations, citing U.S. and Canadian legal precedents. Alberta's UAD line of cases establishes that utilities, not ratepayers, own assets and bear costs of retired or stranded assets. The text argues that Nova Scotia's coal units should be removed from the rate base if uneconomical, and shareholders—not ratepayers—should absorb associated costs.

Why asset valuation accuracy matters now more than ever. p. p. 7
Why asset valuation accuracy matters now more than ever. - 49. Across both Canada and the United States, regulators have recognized that the energy transition can strand assets. Evidence shows that newer, cleaner technologies have rendered...

AI summary Regulators in Canada and the US recognize that energy transition can strand assets, particularly coal. NS Power's coal units are becoming uneconomic due to rising costs and cleaner technologies, necessitating valuation reviews. Alberta's 2006-2013 writedowns and Nova Scotia's 2012 Stranded Asset Disclosure Act (Bill No. 98) highlight sector-wide awareness. A 2012 Board decision (2012 NSUARB 133) assigned stranded cost responsibility to MEUs under certain conditions.

Securitization p. pp. 7-13
Securitization - 89. It is not possible to discuss asset valuations without addressing NS Power's hopes around securitization. - 90. The Department is always open to any opportunity to deliver relief to ratepayers. The Province has repeate...

AI summary The Department supports securitization only if it demonstrably benefits ratepayers, citing past initiatives like debt buybacks and emissions savings that reduced rates by 19%. However, uncertainty around coal asset valuations and risks of future ratepayer costs prevent approval. The Province has not committed to regulatory changes for securitization and rejects NS Power's proposal until proven cost-effective.

Summary p. pp. 17-18
Summary - 124. In summary, the Department of Energy respectfully requests as follows: - a. That the Board reject the requested rate changes. - b. That NS Power's ROE be set at 7.6%. - c. That the Board take steps to ensure that NS Power's...

AI summary The Department of Energy requests the Board to reject NS Power's rate changes, set ROE at 7.6%, write down coal assets, deny Lingan 2 investment, avoid securitization, reject labour cost increases, maintain deferred liability calculations, address cyber-attack costs, and delay rate hikes until ratepayer liability is confirmed. It also urges mitigation of ratepayer impacts.

100777Closing Submission - IG 1 passage
SECURITIZATION OF THERMAL ASSETS p. p. 9
SECURITIZATION OF THERMAL ASSETS

AI summary The document addresses the securitization of thermal assets, a process involving the restructuring of energy infrastructure financing. Key entities include Nova Scotia Power Inc. (NSPI) and regulatory bodies like the Nova Scotia Utility and Review Board (NSUARB). The discussion likely involves cost-of-service studies (COSS) and rate adjustment mechanisms.

100780Closing Submission - NSPI 2 passages
3.5.2 Book Value of Coal Assets p. pp. 23-24
3.5.2 Book Value of Coal Assets NS Power's thermal generation assets have been consistently, diligently, and transparently valued and reported since the utility became a privately held entity, in accordance with established regulatory acco...

AI summary NS Power asserts its thermal generation assets are valued consistently using Board-approved depreciation practices and regulatory accounting principles. A Depreciation Study was filed under the GRA, detailing asset valuations and service lives. Annual financial statements include asset reconciliation schedules since 2017, subject to regulatory review.

4.1 Future of Hydro in Nova Scotia p. p. 52
4.1 Future of Hydro in Nova Scotia The Board Panel's questions during the hearing appropriately highlighted both the magnitude of NS Power's potential hydro decommissioning obligations and the substantial uncertainty surrounding the ultima...

AI summary The Board Panel emphasized uncertainties around NS Power's hydro decommissioning obligations and the lack of a multi-stakeholder framework for decisions. NS Power acknowledges its responsibility to initiate discussions with regulators and stakeholders but notes outcomes are not solely within its control. The Integrated Resource Plan (IRP) will evaluate hydroelectric units based on historical data and constraints to inform future decisions.

100863Reply Submissions - NS Power 1 passage
1 3.0 REPLY TO THE CLOSING SUBMISSION OF THE DEPARTMENT OF ENERGY
1 DOE submissions do provide support for Mr. Coyne's evidence as they only serve to further 2 demonstrate NS Power's risk profile is higher than its peers. NS Power continues to rely on the 3 evidence on the record in this proceeding and o...

AI summary NS Power responds to the DOE's closing submission, asserting its higher risk profile justifies a 9% return on equity. It references a 2010/2011 depreciation study (M03665) with retirement dates for power plants, influenced by carbon regulations. NS Power cites evidence from the Consumer Advocate, NSEB counsel, and industry representatives.

101354Board Decision 26 passages
1.0 SUMMARY p. p. 7
be downgraded even further. This would result in higher financing costs, which could amount to at least $25 million more each year in borrowing costs that would have to be included in customer rates. [9] Securitization requires legislative...

AI summary Securitization of coal plant assets requires legislative action not currently supported by the Province. The Province argues coal plant assets are overvalued due to insufficient past depreciation, with past rate settlements keeping depreciation rates low. This could lead to higher borrowing costs for customers.

3.3.1.1 Findings p. p. 53
[105] First, this general rate application has served as a thorough review of NS Power's operations. In terms of the Board's process, several expert consultants were engaged by Board Counsel to review different aspects of the application....

AI summary The Board found NS Power's general rate application was thoroughly reviewed, with expert consultants evaluating OM&G costs and benchmarking studies confirming favorable performance. A settlement agreement followed negotiations, and ongoing reviews include the FAM audit, performance metrics, and a 5-Year Reliability Plan. The Board declined a savings review but noted a future inquiry under s. 30(5) of the Public Utilities Act.

Rates of utility to include allowance for depreciation p. p. 63
Rates of utility to include allowance for depreciation 41 In fixing rates, tolls and charges to be paid to a public utility for any service, the Board shall include proper allowances for depreciation. [122] NS Power owns significant assets...

AI summary The Nova Scotia Utility and Review Board (NSUARB) mandates that depreciation allowances be included in utility rates. NS Power uses asset pools to track depreciation over estimated useful lifespans, recovering original costs and salvage expenses via customer rates, as permitted by the Public Utilities Act (PUA).

3.4.1.2 Estimated Average Asset Service Lives p. pp. 74-76
3.4.1.2 Estimated Average Asset Service Lives [151] Key elements influencing the determination of depreciation expense are average asset service lives and survivor curves. Survivor curves (also referred to as Iowa curves) are a series of c...

AI summary The section discusses the use of survivor curves to estimate asset service lives for depreciation calculations. The GRA settlement agreement extended service lives for two accounts, reducing depreciation rates. Mr. Madsen disputed the recommended survivor curve for Account 353, proposing an alternative curve while agreeing with the curve for Account 390.10.

3.4.1.3.2 Adjustments to Net Salvage Rates p. p. 81
considered to exhibit low archaeological potential, archaeological monitoring could be recommended for the purpose of obtaining additional information and/or to confirm the results of the assessment. [171] In the case of hydro system parti...

AI summary The text discusses archaeological monitoring for hydro system decommissioning and the inclusion of contingency costs in decommissioning estimates. The Board references NS Power's 2018 Hydro Asset Study (HAS) to argue against removing contingency costs, citing Hatch's inclusion of contingencies as foreseeable expenses. Gannett Fleming's inclusion of archaeological reconnaissance costs in depreciation estimates is also noted.

3.4.1.3.3 Adjustments to Estimated Asset Average Service Lives p. pp. 81-93
3.4.1.3.3 Adjustments to Estimated Asset Average Service Lives [190] In his evidence, Mr. Madsen proposed a number of changes to Gannett Fleming's recommended estimated asset average service lives. This is discussed in more detail in secti...

AI summary The Board rejects Mr. Madsen's proposed changes to asset service lives but approves specific settlement adjustments for NS Power's Account 353 and 390.10, noting peer data support for slight life extensions. The changes align with the GRA and are deemed appropriate for the current proceeding.

3.4.2 Calculation of Depreciation Expense (ELG vs. ALG) p. p. 93
charged in any one period may vary by virtue of the procedure selected, the total amount of depreciation recovered over the full life of the asset will not vary regardless of which procedure is used. [195] Gannett Fleming's depreciation st...

AI summary The text compares ELG and ALG depreciation methods. Gannett Fleming argues ELG better aligns depreciation with asset retirement patterns, while Mr. Madsen supports ALG for its gradual, equitable recovery. Both agree on overall cost recovery parity but differ on method appropriateness amid asset life extensions.

3.4.2.1 Findings p. p. 98
other jurisdictions, why is Nova Scotia Power based on its simulated data seeing significantly lower lives than all the other utilities, at least than I have been reviewing, and across many accounts. And you need to ask yourself, and I've...

AI summary The text highlights discrepancies in Nova Scotia Power's simulated asset service lives compared to other utilities, questioning whether underlying retirement forces in Nova Scotia negatively impact asset longevity. Mr. Madsen suggests the company's reliance on simulated data may exaggerate errors in ELG estimates, contrasting with peer jurisdictions like New Brunswick and Newfoundland.

3.4.3.1 Findings p. pp. 114-117
3.4.3.1 Findings [243] In Undertaking U-8, NS Power provided calculations showing the dollar effect of implementing the changes recommended in Table 8 of Mr. Madsen's evidence. NS Power performed the analysis using both the ALG and ELG dep...

AI summary NS Power analyzed depreciation expense changes using ALG and ELG methods, showing reductions in 2026/2027. However, the Board's decision to not require ALG adoption rendered ALG results moot. ELG results still indicate lower rate increases, offset by higher return on rate base. The Board must determine if Mr. Madsen's service life recommendations are justified.

hearing testimony: p. p. 117
hearing testimony: BY MEMBER MURPHY: … this is the curve that I walked through with Mr. Wiedmayer the other day, and this is for account 355. And Nova Scotia Power is recommending using the Iowa 45-R1.5 curve, and I think you were recommen...

AI summary The testimony discusses the selection of retirement curves for account 355 (poles and fixtures), with Nova Scotia Power recommending the Iowa 45-R1.5 curve. The expert (Madsen) advocates for the Iowa 50-R2.5 curve, acknowledging its worse fit to simulated retirement data but emphasizing its alignment with actual aged data from other reports, such as Newfoundland Power. Madsen argues that a longer-life curve (e.g., 41-R1) better reflects realistic retirements for this asset class.

3.4.6 Depreciation – Summary p. pp. 128-133
the effect of decreasing the company's cash flow. It would also reduce recovery of capital investment thereby increasing debt. These factors would negatively impact NS Power's FFO:Debt credit metrics. [274] In Undertaking U-7, NS Power pro...

AI summary The text discusses the financial impact of depreciation methods (ALG vs. ELG) on NS Power's FFO:Debt metrics, showing ALG would reduce the metric by ~1.2% in 2026-2027. It also highlights risks if securitization of DDA assets fails, potentially lowering the metric below 10%. Mr. Madsen's adjustments would slightly worsen metrics.

3.5.1.2 Present Application p. p. 137
about the value of coal plant assets that would be securitized, submitting that this amount should be reduced (as canvassed elsewhere in this decision). The Province described its position as follows: 92. For initiatives that demonstrably...

AI summary The Province opposes securitization of coal plant assets due to uncertainty in asset valuation and potential financial harm to ratepayers. It rejects NS Power's proposal unless proven to save money, citing no firm commitment to regulatory changes for securitization and concerns about assumptions in the Consensus Agreement.

3.5.1.2.1 Findings p. p. 148
322] As noted above, the approval of the potential securitization is not before the Board in this application. Whether securitization ultimately proceeds is a policy matter for the Province to decide. [323] NS Power requested the deferral...

AI summary The NS Power requested a deferral account for potential securitization of coal plant assets, but the Province is not currently supporting securitization. The Board approves the deferral account, finding that depreciation and financing costs should be deferred as they relate to assets used in test years. The Province's hesitation stems from concerns about asset valuation.

3.6.3 Valuation and "Writing Down" of the Rate Base p. pp. 170-171
3.6.3 Valuation and "Writing Down" of the Rate Base [377] The Department of Energy requests that the Board take steps to ensure that NS Power's coal assets are written down by an amount that the Board deems appropriate based on a transpare...

AI summary The Department of Energy requests the NSUARB to write down NS Power's coal assets, arguing their value is over-inflated and ratepayers shouldn't bear outdated infrastructure costs. They cite imprudent investments and failure to adjust depreciation studies post-2016, aligning with the 2030 coal phase-out.

Duty of utility to furnish information p. p. 171
d be followed to establish the DDA. As with the "black box" settlement in 2011 this had the effect of mitigating the rate impact for customers at the time by avoiding the acceleration of depreciation. [392] In its reply submissions in this...

AI summary NS Power argues that the UAD decisions and principles from Alberta's 'Stores Block' case do not apply outside Alberta, citing the 2023 Alberta Court of Appeal decision. It also contends that the Smyth v Ames case is irrelevant to current proceedings, as it pertains to U.S. railroad rate regulation. NS Power asserts its coal assets are not stranded and remain in use, challenging the Department's reliance on UAD and DDA frameworks.

Value Concept p. p. 178
Value Concept The value concept assumes that all depreciable plant, due to forces such as obsolescence, wear and tear, and inadequacy, tends to diminish in value or worth with the passage of time. This value reduction may be dramatic-as wh...

AI summary The value concept explains depreciation of depreciable plant due to obsolescence, wear, and market changes. Examples include rapid depreciation of cars versus slower depreciation of machinery. Technological advancements, like SCADA systems, can render existing equipment obsolete. Annual appraisals are impractical for utilities, necessitating alternative depreciation methods.

Cost Allocation Concept p. p. 178
definite and immediately determinable. The accounting objectives of verifiability and neutrality are also satisfied. [Emphasis added] [ Depreciation Expense: A Primer for Utility Regulators , p. 12] [408] In 2022, the Public Utilities Act...

AI summary In 2022, the Public Utilities Act was amended to direct the Board to assess NS Power's asset values. The NSUARB initiated a 2023 proceeding, hiring EA Technology and Doane Grant Thornton to evaluate asset management and accounting policies. The Department's request to review assets under s. 30(2) would duplicate the ongoing s. 30(5) proceeding.

Property, Plant and Equipment p. p. 178
Property, Plant and Equipment Property, plant and equipment ("PP&E") are recorded at original cost, including allowance for funds used during construction ("AFUDC") or capitalized interest, net of contributions received in aid of construct...

AI summary The document outlines accounting practices for Property, Plant and Equipment (PP&E), including cost recording, depreciation methods, and regulatory approvals. PP&E are recorded at original cost, with depreciation determined via straight-line methods based on service lives approved by the UARB. Intangible assets are amortized similarly, requiring regulatory approval. References to [M11090, Exhibit N-1, Attachment 2, p. 13] are included.

3.6.3.1.2 Assets No Longer "Used and Useful" and the Decarbonization Deferral Account p. pp. 178-187
3.6.3.1.2 Assets No Longer "Used and Useful" and the Decarbonization Deferral Account [419] Referring to "core ideas" from the UAD line of cases and their relevance to Nova Scotia, the Department submitted, "Once an asset is no longer used...

AI summary The Nova Scotia Department argues that assets no longer 'used and useful' can be removed from the rate base, with shareholder losses. NS Power cites the Alberta Court of Appeal's 2023 decision in ATCO Electric Ltd. v Alberta Utilities Commission (2023 ABCA 129), which clarified that the Stores Block case did not bind the AUC in handling stranded assets from natural disasters. The Court emphasized legislative discretion over depreciation and stranded assets.

Summary and Conclusion p. p. 187
within the discretion of the Commission, to be exercised consistently with the words of the Electric Utilities Act , having regard to all relevant considerations, while disregarding irrelevant ones. - [61] In conclusion, the decision under...

AI summary The text discusses legal challenges to rate-setting decisions, emphasizing the Commission's discretion under the Electric Utilities Act and the incorrect application of Stores Block in treating destroyed assets. The Alberta Court of Appeal and NSUARB rulings highlight flexibility in asset valuation and rate-base treatment, including recovering net book value of destroyed assets (Decision 28320-D01-2023).

[431] The Board went on to find: p. p. 191
etiring coal assets to be recovered from customers that are higher than they should have been. The second, is that NS Power unnecessarily invested in these assets in the face of impending retirements. [433] As discussed previously in this...

AI summary The Board criticizes NS Power for overestimating depreciation rates in past studies and unnecessarily investing in retiring coal assets. It notes a 2010 depreciation study led to a settlement (Matter M03665) reducing rates, later implemented in 2012. NS Power's 2022 rate application omitted updated studies but proposed the DDA to address undepreciated coal costs. Intervenors disputed DDA costs but did not challenge depreciation rates as imprudent.

Treatment of Battery Storage p. p. 236
Treatment of Battery Storage Battery storage is presently functionalized to transmission, but NS Power proposes that battery storage should be considered on a case-by-case basis to determine if the asset is primarily supporting a generatio...

AI summary NS Power proposes battery storage should be classified on a case-by-case basis depending on whether it primarily supports generation, transmission, or distribution. Current grid-scale batteries are argued to serve generation functions and should be classified based on system load factor.

4.3 Climate Change Adaptation Plan p. p. 292
SS and Line Loss Study discussed later in this decision, the Board approves the deferral of the costs of developing this plan for recovery through rates after NS Power's next general rate application. [2023 NSUARB 12] [703] NS Power filed...

AI summary NS Power submitted a Climate Change Adaptation Plan and Wildfire Mitigation Plan as part of its general rate application. The Board approved deferring associated costs for recovery through future rates. The plan involves climate data integration into asset management but lacks detailed vulnerability assessments and mitigation timelines. NS Power cited consultation with the Climate Adaptation Leadership Program during development.

4.3.1 Findings p. pp. 292-294
4.3.1 Findings [707] The fact that NS Power compiles and analyzes climate data and uses this information in its asset management systems is positive. However, NS Power's Climate Change Adaptation Plan is more of a process than a plan per s...

AI summary The NSUARB acknowledges NS Power's climate data efforts but criticizes its Climate Change Adaptation Plan as insufficient, lacking transparency and stakeholder engagement. The Board directs NS Power to revise the plan by October 1, 2026, to better address climate impacts, adaptation measures, and challenges. The current plan fails to meet objectives related to storm cost recovery and capital planning.

4.4 Lingan Unit 2 and Trenton Unit 5 p. p. 295
is forecast to provide in the test period. It recommended that the proposed large increase in sustaining capital costs for Lingan 2 "be supplemented with additional narrative support" by the company. [715] In response to questions from Boa...

AI summary NS Power requested approval for sustaining capital costs for Lingan Unit 2, citing safety and compliance needs. The Board requested additional narrative support, with NS Power explaining reliance on asset management techniques and delayed refurbishment. Refurbishment is deemed necessary to avoid consequential damages, with costs separate from the proposed General Rate Application (GRA). NERC and NPCC requirements justify coal unit retention.

5.0 SUMMARY OF MAJOR FINDINGS AND DIRECTIVES p. p. 302
oth ELG and ALG procedures (paras. [233-234]); - In its next depreciation study, to address Mr. Madsen's recommendations related to asset service life accounts 354, 356, 367, and 390.10 (para. [254]);

AI summary The document references ELG and ALG procedures in paragraphs 233-234 and mandates addressing Mr. Madsen's recommendations for asset service life accounts 354, 356, 367, and 390.10 in the next depreciation study (para. 254).

101825Board Order 1 passage
The Board orders that: p. p. 4
ation process with interested parties about the decommissioning of hydro plants and to report on the results of the consultation every six months, starting no later than October 1, 2026 (para. [189]);

AI summary The Board orders that a consultation process be initiated with interested parties regarding the decommissioning of hydro plants, with reports on the results to be submitted every six months, beginning no later than October 1, 2026.

20260107-1Hearing Transcript — 01/07/2026 (Willett, Williams, Flemming, MacIntosh, Blair) 1 passage
Section 159
background and experience, please? A. (MacIntosh) Certainly. I'm currently the Director of Enterprise Asset Management for Nova Scotia Power. I'm responsible for leading strategic asset management planning, which includes the development o...

AI summary The witness, currently the Director of Enterprise Asset Management for Nova Scotia Power, has extensive experience in asset management, including roles in strategic planning, risk mitigation, and capital investments. Prior to this role, they worked in various positions at Nova Scotia Power and GE Power and Water, focusing on asset integrity and engineering solutions.

20260108-1Hearing Transcript — 01/08/2026 (Pecurica, Willett, Williams, Flemming, Coyne) 1 passage
Section 63
Q. I actually just have one follow up question from that, Mr. Wiedmayer. Is there anything that you're aware of from the preparation of your study in your report, and in particular, your discussions with the company officials that would ac...

AI summary The witness explains that while industry data from other utilities is used for reasonableness checks, specific data from Nova Scotia Power is analyzed independently, and discrepancies in pole longevity between Nova Scotia and Newfoundland are not directly attributed to external factors but require further investigation.

20260109-1Hearing Transcript — 01/09/2026 (Pecurica, Willett, WIlliams, Flemming, MacIntosh) 1 passage
1 JONATHAN MacINTOSH, Previously Affirmed: 8 the data that was associated with the response would have 9 been from the Revenue Requirement Forecast. So that's the 10 gap in timing. 11 As per the response, the talking about 12 the Asset Man...

AI summary The text discusses a timing gap between data submission for the Revenue Requirement Forecast and the ACE Plan, referencing the Asset Management Mechanism and its impact on project prioritization. The conversation appears to be part of a regulatory proceeding involving Nova Scotia Power.

20260112-1Hearing Transcript — 01/12/2026 (Pecurica, Willett, Flemming, MacIntosh) 3 passages
NSP GENERAL/REGULATORY PANEL 1023 Questions, (Chair)
NSP GENERAL/REGULATORY PANEL 1023 Questions, (Chair) 1 were understood to be the ranking public officials on this 14 15 16 17 18 19 20 21 22 23 24 The asset classes or operational areas evaluated includes transmission lines, distribution l...

AI summary The discussion focuses on Nova Scotia Power's asset management and climate adaptation strategies, including the evaluation of vulnerabilities in various operational assets and the integration of climate risks into their risk profiles and management systems.

Section 86
INTERNATIONAL REPORTING INC. CERTIFIED COURT REPORTERS reference it but the differentiation is, is how we've 1 leveraged our asset management mechanism and included the 2 climate risks. And it's the same process we deal with 3 many, many r...

AI summary The discussion revolves around the integration of climate risks into asset management mechanisms, with the speaker acknowledging that not all climate risks are explicitly outlined in the report. The speaker emphasizes that climate risks are integrated with other risks such as load and reliability risks within the asset management process, which may limit transparency regarding specific vulnerabilities and mitigation measures.

1 finish this last question and then we can break for 15
NSP GENERAL/REGULATORY PANEL 1039 Questions, (Chair) 1 finish this last question and then we can break for 15 19 Climate Adaptation Plan. Talk about the asset management INTERNATIONAL REPORTING INC. CERTIFIED COURT REPORTERS 1 mechanism. 2...

AI summary The discussion centers on Nova Scotia Power's asset management mechanism, emphasizing that capital investment is the last resort for mitigating physical asset risks. Operational restrictions and maintenance strategy changes are preferred over capital investment.

Disclaimer: These summaries were generated by AI from the filings they describe. We take care to make them accurate, but errors are possible - and they aren't advice. Only the filings themselves are the record: if you're relying on something here, confirm it against the source documents or the Nova Scotia Energy Board's own record. Full disclaimer →