Topic:"System Reliability" in M12451

4) Frequent and lengthy outages Nova Scotia Power continues to not meet their outage goals.

AI summary Nova Scotia Power (NSP) has failed to meet its outage performance goals, as highlighted in the regulatory proceeding. The issue of frequent and prolonged power outages remains a key concern for the utility provider.

5) The case for public control Electricity is a public necessity. Given the high rates, fossil-fuel reliance, cybersecurity lapses, and reliability shortfalls, I believe the Province should bring Nova Scotia's electric utility under public...

AI summary The text argues that Nova Scotia's electric utility should be under public ownership due to high rates, fossil-fuel reliance, cybersecurity issues, and reliability problems. The author emphasizes public interest over shareholder returns. The email chain includes multiple participants but lacks direct references to regulatory matters.

Kim, Thank you for responding so quickly. It was a surprise to have my email handled in such a way. Is the board interested in further information? I ask because we received our current power bill last night, which is again estimated. Afte...

AI summary Christine Cameron writes to the Board expressing frustration with Nova Scotia Power (NSP) for providing estimated bills and poor service, citing a broken power pole and the CEO's high salary. She argues that NSP should reduce rates due to mismanagement and suggests better investment in staff and maintenance.

Overview of 2026-2027 GRA - NS Power submits this GRA to the Board to request approval of revenue requirements for the - utility and request adjustments to electricity rates for 2026 and 2027, effective January 1, 2026 - and 2027. - The NS...

AI summary NS Power seeks approval for 2026-2027 rate increases (1.8% and 2.4%) to fund system reliability, resilience, and decarbonization goals. Residential rates would rise 3.8% and 4.1%, while industrial rates decrease. The proposal emphasizes cost-effectiveness, citing benchmarking showing NS Power's costs align with industry norms. The application aims to balance reliability, affordability, and customer needs amid rising costs.

Reliability and System Strength - We know that our customers expect and deserve reliable electricity. That's why we are focused - on strengthening the power grid and ensuring we meet the clear expectations of our customers, - regulator and...

AI summary NS Power is focused on strengthening the power grid through large-scale capital projects and investments in reliability. These include grid-scale battery facilities and the NS-NB Reliability Intertie. In 2024, $200 million was invested in reliability, and plans are in place to increase investment to $250 million annually through 2025-2029. Projects include substation upgrades, smart grid enhancements, and infrastructure improvements.

Benchmarking - NS Power filed comprehensive benchmarking work as part of the 2023-2024 GRA. An updated - benchmarking study produced by ScottMadden is provided in standardized filing OP-03 - Attachment 1. The benchmarking study shows that...

AI summary NS Power submitted a benchmarking study as part of the 2023-2024 GRA, showing their costs are below or in line with peers, particularly in OM&G and transmission/distribution metrics. The study by ScottMadden in OP-03 Attachment 1 highlights NS Power's favorable performance in various cost categories compared to utility peers.

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.

- investment during the test period includes investment in system reliability, investment to meet anticipated customer growth and major re-investment and life extension in the Company's hydro facilities. Transformational capital included i...

AI summary NS Power's capital investments focus on reliability, growth, and renewable energy, including battery sites and synchronous condensers. The Reliability Tie project is excluded from the rate base as it's handled by Wasoqonatl Transmission Company. The Five-Year Reliability Plan includes $1.3 billion in projects by 2030. Securitization of DDA assets is anticipated, with credit metrics excluding related debt.

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 customer responsibilities for metering costs, transformer ownership, and load integrity. Customers may incur capital contributions for primary metering, own transformers for non-standard services, and ensure their load doesn't compromise power system integrity. Factors like reliability, harmonics, and voltage flicker are considered in assessing system impacts.

SCHEDULE 1: SCHEDULING, SYSTEM CONTROL AND DISPATCH SERVICE This service is required to schedule the movement of power through, out of, within, or into an Operating Area. This service can be provided only by the operator of the Operating A...

AI summary Schedule 1 outlines the Scheduling, System Control and Dispatch Service, which is required to manage power movement within an Operating Area. The service must be provided by the Operating Area operator or Transmission Provider, with charges passed through to Transmission Customers. Monthly fees apply, and costs are reflected as pass-through charges if the Operating Area operator performs the service.

SCHEDULE 2: REACTIVE SUPPLY AND VOLTAGE CONTROL FROM GENERATION SOURCES SERVICE In order to maintain transmission voltages on the Transmission Provider's transmission facilities within acceptable limits, generation facilities (in the Opera...

AI summary Schedule 2 outlines requirements for Reactive Supply and Voltage Control from Generation Sources Service to maintain transmission voltages within acceptable limits. The Transmission Provider or Operating Area operator must provide this service, with charges based on set rates. Transmission Customers must purchase the service, with costs passed through if the Operating Area operator performs the service.

SCHEDULE 3: REGULATION AND FREQUENCY RESPONSE SERVICE Regulation and Frequency Response Service is necessary to provide for the continuous balancing of resources (generation and interchange) with load and for maintaining scheduled Intercon...

AI summary Regulation and Frequency Response Service ensures continuous balancing of generation/load and maintains 60 Hz frequency. The Transmission Provider (or Operating Area operator) must offer this service, with Transmission Customers required to purchase it or arrange alternatives. Monthly charges apply, with costs passed through if the Operating Area operator provides the service.

Customer Obligations for Self-Supply and Third-Party Supply The customer obligation for self-supply or third-party supply of Regulation is equal to 3.5 percent of Reserved Capacity for Point-to-Point Transmission Service and 3.5 percent of...

AI summary The document outlines customer obligations for self-supply and third-party supply, specifying 3.5% of Reserved Capacity and Network Load for Point-to-Point and Network Integration Transmission Services, respectively, and 9.1% for Load Following. These percentages define the required contributions from customers under different service categories.

SCHEDULE 5: OPERATING RESERVE – SPINNING RESERVE SERVICE Spinning Reserve Service is needed to serve load immediately in the event of a system contingency. Spinning Reserve Service may be provided by generating units that are on-line and l...

AI summary Spinning Reserve Service ensures immediate load support during system contingencies, provided by on-line generating units operating below maximum output. The Transmission Provider must offer this service when serving load within its Operating Area, while the Transmission Customer must purchase it or arrange alternatives. Monthly charges apply, with costs passed through if the Operating Area operator provides the service.

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 eight minutes of notification by the Transmission Provider to ac...

AI summary Suppliers and self-supplying transmission customers must provide 100-110% of required MW reserves within 8 minutes of notification, sustaining them for 50 minutes. Failure to meet obligations incurs penalties equal to one month's charge per deficiency. This ensures system reliability through strict reserve requirements.

SCHEDULE 6: OPERATING RESERVE – SUPPLEMENTAL RESERVE SERVICE Supplemental Reserve Service (also referred to as Contingency Reserve – Supplemental) is needed to serve load in the event of a system contingency; however, it is not available i...

AI summary Schedule 6 outlines the Supplemental Reserve Service, required to address system contingencies within a short timeframe. It may be provided by on-line unloaded units, quick-start generation, or interruptible load. Transmission Customers must purchase this service from the Transmission Provider or arrange alternatives. Monthly charges apply, with costs passed through if the Operating Area operator provides the service.

Operating Reserve – Supplemental (30-minute)

AI summary The document pertains to a regulatory proceeding concerning the 'Operating Reserve – Supplemental (30-minute)' mechanism. It involves Nova Scotia Power Inc. (NSPI) and the Nova Scotia Energy Board (NSEB), with references to the Fuel Adjustment Mechanism (FAM) and Demand Side Management Cost Recovery Rider (DCR). The proceeding likely addresses operational reserve requirements and cost recovery frameworks.

Customer Obligations The customer obligation for reserves is equal to 3.0 percent of Reserved Capacity for Point-to-Point Transmission Service and 3.0 percent of Network Load for Network Integration Transmission Service.

AI summary Customer obligations for reserves are set at 3.0% of Reserved Capacity for Point-to-Point Transmission Service and 3.0% of Network Load for Network Integration Transmission Service, establishing specific reserve requirements for different transmission service types.

SCHEDULE 9: REAL POWER LOSS FACTORS For Point-to-Point service, the Transmission Provider will seasonally calculate loss factors to be used on a path-by-path basis. For each season, winter and summer, the power flow models used to calculat...

AI summary The document outlines procedures for calculating and applying real power loss factors for Point-to-Point and Network Service by the Transmission Provider (NSPI). Seasonal and annual loss factors are determined, with system average factors for Network Service and locational factors for new generation. Loss factors are posted on OASIS, and customers must account for losses in their service requests.

AVAILABILITY CONDITIONS - (a) The customer must commence service under this tariff on November 1st, unless NSPI grants a waiver. - (b) The customer must be equipped with a standard Smart Meter. Effective: November 1, 2024 - (c) The custome...

AI summary The tariff requires customers to commence service on November 1, 2024, with a Smart Meter, electronic billing, and a MyAccount profile. NSPI may limit enrollment and restrict participation for those on seasonal or Net Metering services.

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 customer responsibilities for metering costs, non-standard service provisions, and load management to maintain power system integrity. Customers may bear capital costs for primary metering, own transformers for non-standard services, and ensure their load does not compromise system reliability, harmonic levels, voltage stability, or fault levels.

GENERAL CRITICAL PEAK PRICING TARIFF Page 4 of 4 Rate Code 73 (4) In assessing issues which might unduly affect the integrity of the power supply system the following would be considered: reliability, harmonic voltage and current levels, v...

AI summary The General Critical Peak Pricing Tariff (Rate Code 73) outlines factors affecting power supply integrity, including reliability, voltage flicker, and stability, effective November 1, 2024. Technical considerations such as harmonic levels, unbalance, and fault levels are emphasized.

MULTI-UNIT RESIDENTIAL BUILDINGS TIME OF USE TARIFF Page 3 of 3 Rate Code 89 metering as opposed to the cost of secondary metering. Adjustment to the metered kWh usage will be made when metering is on the high voltage side. Meter readings...

AI summary Adjustments to metered kWh usage by 1.9% when high voltage metering is used. Customers may own transformers for non-standard services and must ensure load does not compromise power supply integrity, considering factors like reliability, harmonics, and voltage stability.

LARGE INDUSTRIAL TARIFF Page 3 of 6 (2,000 kVA or 1,800 kW and over) Rate Code 23 - (2) 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 p...

AI summary The Large Industrial Tariff (Rate Code 23) outlines metering requirements, minimum load conditions, service agreements, and power supply integrity standards. NSPI may withdraw the tariff if customers fail to meet load thresholds, with exemptions for interruptible service customers. Customers must ensure their operations do not compromise power system reliability, harmonic levels, or stability.

Where: "A" is any residual customer demand (above that required by the interruption notice) remaining in the third interval directly following two complete 5-minute intervals after the interruption call is initiated and sent by NSPI. "B" i...

AI summary The document outlines rules for interruptible service under the DCR rider, including penalty calculations based on residual demand, service conversion requirements (5-year notice for firm service, 2-year return to interruptible), and interruption limits (16 hours/day, 30% monthly, 15% annual). NSPI sets these terms for capacity availability and billing.

SCHEDULE 1: SCHEDULING, SYSTEM CONTROL AND DISPATCH SERVICE This service is required to schedule the movement of power through, out of, within, or into an Operating Area. This service can be provided only by the operator of the Operating A...

AI summary Schedule 1 outlines the Scheduling, System Control and Dispatch Service, required for power movement within an Operating Area. The service is provided by the Operating Area operator or Transmission Provider, with charges passed through to Transmission Customers. Monthly fees apply, reflecting costs incurred by the Operating Area operator if it performs the service.

Nova Scotia Power Incorporated Page 14 of 23 Open Access Transmission Tariff overall cost of supplying reserves and to return the system to pre-contingency conditions within the time required by NPCC and NERC. Operating Reserve service wil...

AI summary Operating Reserve service is available for the hour of a contingency and the following two hours, adhering to NPCC and NERC standards. The Transmission Customer must address supply deficiencies by the end of this period, with unscheduled withdrawals treated as Energy Imbalance under Schedule 4.

Nova Scotia Power Incorporated Page 16 of 23 Open Access Transmission Tariff This includes, but is not restricted to, NS PIower resources. Typically the activation will be done to minimize the overall cost of supplying reserves and to retu...

AI summary NSPI activates resources to minimize reserve supply costs and meet NPCC/NERC standards. Reserve services are available for the contingency hour and two following hours, with Transmission Customers responsible for addressing supply deficiencies. Unscheduled energy withdrawal is classified as Energy Imbalance per Schedule 4.

Nova Scotia Power Incorporated Page 18 of 23 Open Access Transmission Tariff Reserve services will only be available for the hour in which the contingency occurs and the following two hours. The quality of service will be firm for this tim...

AI summary Reserve services under the Open Access Transmission Tariff (OATT) by Nova Scotia Power Inc. (NSPI) are available for the hour of a contingency and the following two hours, with firm service quality. The Transmission Customer must resolve supply deficiencies by the end of this period, and unscheduled energy withdrawals are treated as Energy Imbalance under Schedule 4.

2026-2027 GRA Direct Evidence Appendix 1A Page 2 of 7 REDACTED (CONFIDENTIAL INFORMATION REMOVED) OP-01 NS Power / Emera Regulated Annual Reports Attachment 1 – NS Power 2024 Q3 MD&A Attachment 2 – NS Power 2024 Financial Statements Attach...

AI summary This document lists various attachments and evidence submitted as part of the 2026-2027 GRA Direct Evidence Appendix 1A. It includes financial reports, organizational charts, benchmarking studies, asset listings, maintenance schedules, fuel specifications, IPP contracts, reliability statistics, and presentations by analysts and bondholders.

12. Wreck Cove Spinning and 10-Minute Supplementary Reserve The Board addressed this directive at para. 485 of the 2023-2024 GRA Decision: Regarding the suggestion that Wreck Cove capacity may be over-credited in the 10 minute spinning res...

AI summary The Nova Scotia Energy Board evaluated NS Power's evidence regarding potential over-crediting of Wreck Cove capacity in 10-minute spinning reserve cost calculations, as outlined in para. 485 of the 2023-2024 GRA Decision. The Board considered NS Power's argument that units are utilized for both spinning reserve and 10-minute supplementary reserve purposes.

13. Exclusion of CT Units from 30-Minute Supplemental Reserve The final directive concerning capacity-based ancillary services is at para. 486 of the 2023-2024 GRA Decision: Regarding inclusion of less expensive CTs in the CBAS costing cal...

AI summary The Nova Scotia Energy Board (NSEB) directed NS Power to provide a more detailed explanation in its next GRA regarding the exclusion of CT units from 30-minute supplemental reserve calculations, finding NS Power's previous justification insufficient. NS Power addressed this in SR-01 Attachment 1e.

Executive Summary Hurricane Fiona, which arrived in Nova Scotia in the fall of 2022, was the most damaging storm Nova Scotia Power Inc (NS Power) has ever experienced with 415,000 or 80 percent of customers impacted at its peak. At landfal...

AI summary Hurricane Fiona (2022) caused significant damage to Nova Scotia Power Inc (NS Power), impacting 80% of customers. The Climate Adaptation Plan aims to enhance infrastructure resilience against climate change, using guidance from the Canadian Electricity Association (CEA). NS Power integrates climate risks into asset management, addressing extreme weather, sea level rise, and temperature changes to ensure reliable energy delivery.

The Need for Adaptation Planning " Climate change is upon us, and its impacts are getting more severe with each passing year ."[1](#page-30-1) Increases in the intensity, frequency, duration, and geographic reach of extreme weather and cha...

AI summary Climate change is increasing, leading to more extreme weather events. NS Power emphasizes adaptation planning to address physical risks to assets and operations, ensuring service reliability for customers. Examples include flooded generation stations and changes in natural resources affecting operations.

2026-2027 GRA Direct Evidence Appendix 3B Page 9 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) emerging challenges such as climate change and the integration of renewable energy sources. By utilizing a risk-based decision-making approa...

AI summary NS Power's SAMP integrates climate adaptation planning into asset management, using risk-based decisions to build a resilient grid. This approach aligns with climate adaptation goals, ensuring reliable service while addressing climate change impacts and renewable energy integration.

1.2. Goals and Objectives The goal of the Climate Adaptation Plan is to ensure the utility continues to successfully deliver on its mission to provide safe, reliable and affordable electricity, while improving its resilience to climate cha...

AI summary NS Power's Climate Adaptation Plan aims to ensure reliable electricity delivery while enhancing resilience to climate change. Key objectives include integrating climate risks into asset management, leveraging climate science, reducing vulnerabilities, fostering industry collaboration, and driving innovation for long-term adaptation.

ASPIRATIONAL GOALS Deliver Value For Customers We will be a trusted partner and deliver exceptional service. Reliability+ We are building a reliable, modern grid that supports electrification. KEY INITIATIVES Customer First Program Grow ou...

AI summary The text outlines aspirational goals and key initiatives related to delivering value for customers, building a reliable grid, and transitioning to a lower-carbon economy. It also references a 2026-2027 GRA Direct Evidence Appendix 3B.

Pillar 2 (Reliability+): We are building a reliable, modern grid that supports electrification. Adaptation planning will support cost-efficient deployment of services by enabling appropriate assessment of climate risks so maintenance can b...

AI summary Pillar 2 (Reliability+) focuses on enhancing grid reliability through adaptation planning, storm hardening, and grid modernization to address climate risks and support electrification. These initiatives aim to improve resilience against climate-related disruptions and ensure efficient maintenance prioritization.

2026-2027 GRA Direct Evidence Appendix 3B Page 12 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Adapting to the changing climate is not an alternative to increasing action to slow climate change, but adaptation has become a crucial com...

AI summary The text emphasizes the importance of climate adaptation as a complement to mitigation efforts, citing high benefit-cost ratios (2:1 to 10:1) from the Global Commission on Adaptation. It highlights NS Power's potential benefits, including reduced economic losses and improved infrastructure resilience through climate risk-based maintenance.

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.

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.

& lt;sup>22 Direct impacts are defined by the CEA as those with "direct, i.e., unmediated, effects on assets and operations." Indirect impacts are defined as those that "initiate a chain of events that ultimately impact on assets and opera...

AI summary The document discusses climate hazards and their impacts on Nova Scotia Power's operations. It categorizes impacts as direct or indirect and outlines risk levels for different hazards, such as changes in runoff, temperature, and drought/wildfire, affecting various business units and infrastructure.

2026-2027 GRA Direct Evidence Appendix 3B Page 31 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia-New Brunswick Transmission Corridor – Example of Key Climate Impacts for Critical Transmission Asset Identified in Step 2 The t...

AI summary This document discusses the climate risks to the Nova Scotia-New Brunswick transmission corridor, including coastal flooding, ice accumulation, and rising temperatures. It highlights the projected impacts on transmission lines and the adaptations taken by NS Power, such as updated infrastructure standards and a funding agreement to reinforce the Chignecto Isthmus.

2026-2027 GRA Direct Evidence Appendix 3B Page 33 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Some asset reliability teams feed information into other asset reliability teams, for example the distribution and transmission asset relia...

AI summary The document describes how asset reliability teams (e.g., distribution, transmission) share information with the vegetation team. Facilities like Wreck Cove Hydroelectric Station have 'stacked' risk profiles combining assessments from multiple teams.

Wreck Cove Reliability Teams: - Civil structures - Dam structures - Hydro mechanical - Electrical - Instrumentation & controls

AI summary The Wreck Cove Reliability Teams focus on civil, dam, hydro-mechanical, electrical, and instrumentation & controls infrastructure. These teams ensure reliability across multiple engineering disciplines critical to the facility's operations.

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.

5.2. Five-Year Reliability Plan The Five-Year Reliability Plan, filed with the Nova Scotia Utility and Review Board in December 2024, represents a significant investment of $1.3 billion aimed at enhancing the resilience and reliability of...

AI summary NS Power's Five-Year Reliability Plan, filed with the Nova Scotia Utility and Review Board in December 2024, outlines a $1.3 billion investment to enhance grid resilience through storm hardening, vegetation management, equipment upgrades, and advanced grid modernization. The plan aligns with climate adaptation strategies to reduce outage risks and integrate renewable energy.

2026-2027 GRA Direct Evidence Appendix 3B Page 41 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) handle future climate challenges. This integrated approach ensures that NS Power's customers receive dependable and efficient power service...

AI summary NS Power's integrated approach aims to handle future climate challenges, ensuring dependable and efficient power service for customers, even during severe weather events. This is part of the 2026-2027 General Rate Application (GRA) process.

5.3. Wildfire Mitigation Plan As part of NS Power's comprehensive climate adaptation plan, the Wildfire Mitigation Plan plays a crucial role in enhancing the resilience of the Company's electrical infrastructure against the increasing thre...

AI summary NS Power's 2025 Wildfire Mitigation Plan enhances infrastructure resilience through vegetation management, equipment upgrades, and real-time monitoring. It aligns with climate adaptation goals, using predictive analytics to proactively manage wildfire risks, ensuring service reliability and public safety while advancing a sustainable grid.

Climate Adaptation Risk Lead - Manages climate datasets; - Integrates knowledge of key climate impacts and climate datasets into asset reliability team risk assessments; - Reviews climate-related asset risk scores from asset reliability te...

AI summary The Climate Adaptation Risk Lead role involves managing climate datasets, integrating climate impact assessments into asset reliability risk evaluations, maintaining the Climate Adaptation Management System (CAMS), monitoring climate-related performance metrics, and updating the Climate Adaptation Plan document with periodic dataset revisions.

8.1. Performance Metrics & Reporting System reliability and availability is currently monitored and reported on monthly basis by Enterprise Asset Management for both the T&D division as well as the Generation division. These reports summar...

AI summary NS Power monitors system reliability and availability monthly via Enterprise Asset Management, reporting on T&D and Generation divisions. Reports highlight reliability, risk conditions, and validate risk mitigation effectiveness. While not climate-specific, data can be analyzed through a climate adaptation lens. T&D uses the System Reliability Performance Update with metrics like SAIFI and SAIDI to identify problem feeders and prioritize climate adaptation measures.

2026-2027 GRA Direct Evidence Appendix 3B Page 48 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2024 Reliability Update Summary YTD Target Status Trend BSC Target Blue Sky CAIDI (EED, MED, SED removed) 2.09 <1.82 × Exceeded Storm CAIDI...

AI summary The 2024 Reliability Update Summary highlights performance metrics such as CAIDI and SAIDI, showing some targets were exceeded while others were achieved. The system reliability update also notes the increasing frequency and intensity of extreme weather events, which are relevant to the climate adaptation process.

Figure 8.2: Number of Storm Days by Year The following [Figure 8.3](#page-73-1) provides a summary of the CKAIFI[28](#page-73-2) frequency, which is the number of customer hours of interruption by the number of customers served by the feed...

AI summary Figure 8.2 and 8.3 analyze storm days and CKAIFI (Circuit Average Interruption Frequency Index) statistics, highlighting feeder reliability and climate-related risk mitigation needs. CKAIFI measures interruption frequency per customer, emphasizing performance gaps and the need for climate adaptation strategies.

2026-2027 GRA Direct Evidence Appendix 3B Page 50 of 54 REDACTED (CONFIDENTIAL INFORMATION REMOVED) The following [Figure 8.4](#page-74-0) provides additional detail for a feeder which was flagged due to their reliability performance. The...

AI summary Feeder 57S-401 has reliability issues, with 24.1% of events caused by tree contact. NS Power plans to mitigate this by moving poles and widening ROWs, expecting reduced events.

Table 8.1: 2024 Unit Performance Summary Unit Op Hours (Aligne) Net Gen (MWh) Avg Net Load Calc (MW) Net CF Calc (%) Cold Starts Warm Starts Hot Starts DAFOR (%) Availability Factor (%) LIN-1 5,811 501,747 86 37% 9 8 5 5.2% 72.60% LIN-2 2,...

AI summary The table provides a summary of unit performance for 2024, including operational hours, net generation, availability factors, and outage statistics. The data is used to monitor generating unit reliability and is reviewed weekly through the Generation Equipment Reliability (GER) reporting process. The successful deployment of the Climate Adaptation Plan is expected to help manage risks that may cause outages or derates.

WILDFIRE MITIGATION PLAN 2025 Update

AI summary The 2025 Update to the Wildfire Mitigation Plan outlines strategies for reducing wildfire risks through vegetation management, infrastructure hardening, and community engagement, aiming to enhance grid resilience and public safety in Nova Scotia.

Executive Summary The purpose of the NS Power's wildfire mitigation plan is to reduce the risk of wildfires caused by electrical infrastructure in Nova Scotia and to protect public safety. It aims to ensure the reliability of electricity s...

AI summary NS Power's wildfire mitigation plan aims to reduce wildfire risks from electrical infrastructure, protect public safety, and ensure reliable electricity service through vegetation management, equipment upgrades, and operational improvements. Key assets include transmission lines, distribution lines, and monitoring systems, with goals focused on risk reduction, safety, and grid resilience.

2026-2027 GRA Direct Evidence Appendix 3C Page 4 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Risk Assessment & Mapping Identify and prioritize high-risk areas for wildfires Situational Awareness Maintain real-time awareness of condit...

AI summary The wildfire mitigation plan outlines goals and objectives for wildfire prevention and response, including risk assessment, situational awareness, inspection programs, vegetation management, and emergency response to ensure safety and service reliability.

The long-term vision of a wildfire mitigation plan for NS Power is to create a resilient and sustainable electrical grid that can withstand and adapt to wildfire risks. This vision includes: - 1. Enhanced Safety: Achieving a continued low...

AI summary NS Power's long-term vision for wildfire mitigation includes enhanced safety, reliable service, innovative technology, community partnerships, and continuous improvement to create a resilient and sustainable electrical grid. The goal is to reduce wildfire risks and protect communities.

1.0 Introduction The purpose of the NS Power's wildfire mitigation plan is to reduce the risk of wildfires caused by electrical infrastructure in Nova Scotia and to protect public safety. It aims to ensure the reliability of electricity se...

AI summary NS Power's wildfire mitigation plan aims to reduce the risk of wildfires caused by electrical infrastructure, protect public safety, and enhance grid resilience through vegetation management, equipment upgrades, and operational changes.

A summarized risk map that shows the overall ignition probability and estimated wildfire consequence along the electric lines and equipment NS Power has detailed risk profiles of our transmission lines and distribution feeders across its s...

AI summary NS Power provides annual risk profiles for transmission lines and distribution feeders, incorporating both lagging (wildfire outages) and leading (vegetation encroachment) indicators. These profiles help identify areas with higher wildfire risks and are updated as new data becomes available. Figures 4 and 5 illustrate sample risk profiles for transmission and distribution lines.

3.2 Tracking and analysis of wildfires and near miss ignitions The purpose of this practice is to track ignitions and potential ignitions and perform root cause analysis to detect and understand patterns or correlations. The resulting data...

AI summary NS Power tracks wildfires and near-miss ignitions to identify patterns and improve fire prevention. Data from NS NRR is reviewed by the Vegetation Reliability Team, while outage events are categorized in the Outage Management System for root cause analysis.

3.3 Ignition probability Utilities in North America are developing and using tools and processes to assess the risk of ignition across regions of the grid (or more granularly, e.g., circuits, spans, or assets). Power lines contribute to wi...

AI summary Utilities in North America assess ignition risks from power lines contributing to wildfires via tree contact during high winds and high impedance faults. The Nova Scotia Energy Board (NSEB) is involved in analyzing these risks.

5.0 Inspection Programs Inspection and maintenance programs enable utilities to identify and address deficient conditions and components to reduce potential impacts to the electric system, minimizing hazards, and maintaining system reliabi...

AI summary Inspection and maintenance programs are critical for identifying and addressing deficiencies in the electric system, reducing hazards, and ensuring reliability. Existing programs should be reviewed for improvements, and new programs should be considered for inclusion as needed.

5.5 Substation Inspections Substation inspections are conducted primarily to identify and address reliability and environmental concerns but incidentally provides additional wildfire mitigation benefits. Specifically, the inspection progra...

AI summary Substation inspections focus on reliability and environmental safety, incidentally aiding wildfire mitigation by preventing equipment failures that could cause fires. Substation design (steel, gravel, concrete) and vegetation management limit fire spread, while transformers are engineered to avoid explosions. Uncontrolled fires, though rare, pose potential ignition risks.

Revising NSPI standards to bond hardware Transmission Engineering has revised NS Power standards to bond all transmission hardware. With unbonded equipment, a structure's wood components contribute to structure insulation. If a flashover o...

AI summary Transmission Engineering revised NS Power standards to bond all transmission hardware, aiming to prevent fires from flashovers. Bonding adds grounding points, which would trip the line during faults, reducing fire risk on wooden components.

Pole hardening and replacement program based on pole loading assessment program Actions are taken to remediate, adjust, or install replacement poles that the utility has identified as failing to meet modern safety factor requirements in ac...

AI summary The document outlines NS Power's pole hardening and replacement program, driven by updated safety standards for transmission and distribution poles. Enhanced design criteria for 69 kV transmission poles and coastal locations are implemented to address severe loading and storm resilience, ensuring compliance with modern safety requirements.

6.3 Wildlife Protections In addition to interruptions, wildlife interaction with electrical equipment can lead to ignitions. Installation of bird and wildfire deterrents on structures and assets are used to reduce the

AI summary The text discusses wildlife interactions with electrical equipment leading to ignitions and mentions the installation of bird and wildfire deterrents on structures and assets as a mitigation measure. The focus is on reducing risks through protective measures.

2026-2027 GRA Direct Evidence Appendix 3C Page 31 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) The Vegetation Management Program is designed to proactively reduce tree contacts with power lines, which can be an initiating cause for wi...

AI summary The Vegetation Management Program aims to reduce wildfire risks by widening power line corridors, improving access for maintenance, and enhancing inspection capabilities. Strategies include corridor widening, rights-of-way establishment, and tree trimming to prevent electrical faults and improve system reliability.

2026-2027 GRA Direct Evidence Appendix 3C Page 32 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Hazard trees pose a risk to powerlines from branch contact, partial tree, or whole tree failure. The resulting risks include electrical out...

AI summary Hazard trees pose risks to powerlines, leading to outages, wildfires, and injuries. NS Power manages these risks through proactive inspection programs and promotes the 'Plant the Right Tree in the Right Place' initiative to reduce conflicts between trees and powerlines.

7.3 Substation Vegetation Management During regular substation inspections, any vegetation present is assessed, and Forestry is contacted to intervene as required. Vegetation is cleared 2-3 meters outside of the fence line, and all vegetat...

AI summary Nova Scotia Power's substation vegetation management involves clearing vegetation 2-3 meters outside substation fences and removing all vegetation within the yard to prevent fire hazards and ensure safety. Forestry is engaged as needed during inspections, with proactive measures emphasized for reliability.

2026-2027 GRA Direct Evidence Appendix 3C Page 33 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) maintenance and emergency response. Additionally, this vegetation management creates a buffer that protects substations from wildfires in t...

AI summary The text highlights the importance of vegetation management in maintaining infrastructure and emergency response capabilities, emphasizing its role in protecting substations from wildfires through the creation of safety buffers.

8.0 General Operational Practices At NS Power, our wildfire mitigation plans include operational practices that enhance fault detection and system protection. By deploying advanced technologies such as distribution automation systems, curr...

AI summary NS Power outlines wildfire mitigation strategies involving advanced technologies like distribution automation systems, current limiting protectors, and improved reclosers/sensors to enhance fault detection, system protection, and grid resilience. These measures aim to quickly isolate faults, reduce ignition risks, and improve response times during wildfires, ensuring community safety and grid reliability.

Automatic Reclosers NS Power deploys automatic reclosers across its system to interrupt faults of various causes. The settings for these devices are applied to balance both customer reliability (clearing transient faults) and safely isolat...

AI summary NS Power uses automatic reclosers to manage faults by balancing customer reliability and safety. Settings prevent repeated reclosing on permanent faults, reducing ignition risks from tree contact or equipment failure.

Fault Indicators Fault indicators are used to detect faults on electric lines and equipment. They may be utilized when automatic reclosing is disabled or if alternative protection settings are applied during times of wildfire risk. Disabli...

AI summary Fault indicators are used by NS Power to detect faults on electric lines, especially during wildfire risk periods when automatic reclosing is disabled. They help narrow down failure locations, enabling faster response, fault correction, and improved customer restoration. NS Power does not regularly disable automatic reclosing.

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.

Circuit Breakers Circuit breakers detect short-circuit fault conditions and operate to limit damage to the system. They are used in substations to de-energize the lines if a fault is detected. Reclosers serve a similar role on distribution...

AI summary Circuit breakers detect short-circuit faults in electrical systems, de-energizing lines in substations to prevent damage. Reclosers perform a similar function on distribution feeders by interrupting fault currents. Both devices are critical for maintaining grid reliability and minimizing outage impacts.

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.

8.2 Smart Meters NS Power has installed smart meters for the majority of its customers, allowing events and alarms to be automatically sent to the control center. This technology enhances visibility and response at the individual customer...

AI summary NS Power has deployed smart meters to enhance grid visibility, improve outage response, and mitigate wildfire risks by detecting line disturbances and downed power lines. The technology provides real-time load and voltage data, supporting faster restoration and situational awareness. Existing AMI integrations enable wildfire risk reduction through meter pinging to validate power status.

2026-2027 GRA Direct Evidence Appendix 3C Page 35 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) are opportunities to further integrate AMI data with outage management systems for better visibility to System Operators and to provide a c...

AI summary The text highlights opportunities to integrate AMI data with outage management systems, enhancing visibility for System Operators and providing consolidated datasets for Reliability Engineers. Smart meter alarms and power quality data integration improves outage response and wildfire risk detection, bolstering grid resilience and community safety.

As part of NS Power's comprehensive wildfire mitigation strategy, the Transmission and Substation Reliability Teams are committed to regularly reviewing existing critical spare equipment. This ongoing assessment aims to identify additional...

AI summary NS Power is enhancing its wildfire mitigation strategy by regularly reviewing and updating critical spare equipment for emergency response. This includes ensuring adequate distribution equipment availability, supported by an emergency services response plan tested through past severe weather events such as Hurricane Dorian and Fiona.

REDACTED 2026-2027 GRA Direct Evidence Appendix 5A Page 10 of 38 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 1 As illustrated in Figure 5, the forecast cost of fuel increases from $83.69/MWh in 2024 GRA 2 Refresh to $90.03/MWh in 2025, bef...

AI summary The document outlines fuel cost forecasts for the 2026-2027 GRA period, noting fluctuations in costs and the impact of renewable energy projects. It highlights the role of the Maritime Link in enhancing grid reliability and supporting renewable energy targets, as well as the expected increase in wind generation from Independent Power Producers.

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.

2026-2027 GRA Direct Evidence Appendix 6B (Redline) Page 34 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Prior Year's Accumulated Interest: the interest accumulated over the previous year on the balance in the 'Balancing Account' to b...

AI summary The document defines financial and operational terms related to the 2026-2027 GRA, including Prior Year's Accumulated Interest, Balancing Account balances, Total Purchased Power, System Requirements, Two-Part Real Time Pricing charges for ELI 2P-RTP customers, and Water Royalties. These terms outline mechanisms for cost recovery, pricing adjustments, and environmental compliance.

1.5 Energy Delivery Energy Delivery OM&G was $118.7 million in 2024, which is $24.0 million higher than the restated 2024 GRA compliance forecast of $94.6 million. Figure 7A-6: Energy Delivery 2024 Compliance Forecast vs. 2024 Actuals ($ M...

AI summary Energy Delivery OM&G costs rose to $118.7 million in 2024, exceeding the $94.6 million GRA forecast. Factors include population growth (2.2% annual rate since 2021), increased customer work (40% rise), and climate change impacts (storms, wildfires). NS Power implemented a Five-Year Plan to improve grid reliability and met key performance metrics in 2024.

1.5.4 Reliability Implementation This is a new department created since the 2023-2024 GRA which includes vegetation management, reliability standards, community engagement, and line inspection programs. The $2.1 million increase in actual...

AI summary A new department established post-2023-2024 GRA handles vegetation management, reliability standards, community engagement, and line inspections. A $2.1M increase in 2024 operating expenses stems from expanded staffing in the Reliability Standards & Engagement team to centralize planning and improve customer communication under NS Power's Five-Year Reliability Plan.

1.5.7 Cost Savings Initiatives NS Power has continued to evolve its focus on meeting customer-requested work in a timely manner and is investing to meet increased customer reliability expectations. The Company has made significant progress...

AI summary NS Power has improved customer reliability through initiatives like the Five-Year Reliability Plan, leading to increased costs. The company emphasizes providing value for these investments and highlights the Management Operating System as part of the WAM project transition to enhance operational efficiency.

1.6.2 Grid Modernization and Customer Integration The Grid Modernization and Customer Integration team focuses on enhancing the customer experience by delivering new solution offerings to meet emerging customer demands in the rapidly evolv...

AI summary The Grid Modernization and Customer Integration team enhances customer experience through digital solutions and grid modernization. NS Power provided a restated 2024 GRA Compliance Budget to compare costs with the 2023-2024 GRA, citing inflation and other factors as main cost drivers for higher operating expenses.

Reliability Implementation 2024 2026 Forecast 2026 Forecast 2026 Forecast 2027 Forecast Overview 2026 Forecast vs. 2027 Forecast vs. 2026 Forecast vs. 2026 Forecast vs. 2025 Budget 2026 Forecast 2024 Actual 2024 Compliance Reliability incl...

AI summary The Reliability Implementation section outlines the costs associated with reliability efforts, including vegetation management, community engagement, and inspections. The 2026 forecast shows increased costs due to inflation in contracts and labor, with a total increase of 308 thousand dollars compared to the 2025 budget. The 2027 forecast is expected to further increase by 210 thousand dollars due to rising contract costs.

65.46 74.5 24,163 64 0.0027 0.9973 65.25 75.5 65.08 _ VII-37 Nova Scotia Power Inc. December 31, 2023 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2027 GRA Direct Evidence Appendix 8A Page 98 of 297 ACCOUNT 362.10 SCADA EQUIPMENT NOVA...

AI summary The text presents data related to Nova Scotia Power Inc.'s SCADA and remote monitoring equipment, including survivor curves. The information is part of a regulatory proceeding and appears in a redacted format.

Why do this project now? The System Impact Study Report TSR400-SIS2-R1 prepared by the Nova Scotia Power System Operator dated 2013- 03 identified six actual, or potential, system upgrades required to prevent NS Power transmission related...

AI summary The 2013 System Impact Study identified system upgrades to prevent thermal overloads and voltage collapses. The project was implemented before the ML Project's interconnection, eliminating constraints and ensuring reliability when receiving energy from the Maritime Link.

Why do this project this way? L6513 which is located between the 1N-Onlsow and 74N-Springhill substations was originally built in 1965 utilizing a wood pole H-frame/ timber cross arm design and was approaching 50 years of service. The line...

AI summary The L6513 power line, built in 1965, was replaced due to aging infrastructure and technical infeasibility of repairs. A new line was constructed in an adjacent right-of-way to maintain service and minimize disruptions, addressing safety and reliability concerns while adhering to modern standards.

Why do this Project? L8004 is a 345kV line between 101S-Woodbine and 79N-Hopewell. L7005 is a 230kV line between 3C-Port Hastings and 67N-Onslow. The Transmission Service Request and associated System Impact Study (Report TSR400-SIS2-R1 pr...

AI summary The document describes the reconfiguration of two transmission lines (L8004 and L7005) across the Strait of Canso to address risks of overload and instability. A 2013 study identified that a single tower failure on shared lines could cause instability, prompting separation from a double circuit tower (DCT) at Auld's Cove to ensure reliable transmission for the Maritime Link Project.

Why do this Project Now? The System Impact Study Report TSR400-SIS2-R1 prepared by the Nova Scotia Power System Operator dated 2013- 03 identified six actual, or potential, system upgrades required to prevent NS Power transmission related...

AI summary The 2013 System Impact Study Report identified necessary system upgrades to prevent thermal overloads and voltage collapses. This project, part of the Maritime Link initiative, was implemented before the project's interconnection to NS Power's grid. Originally scheduled for Q3 2017, the project aimed to align with design timelines, minimize outages, and reduce environmental impacts.

4 e. Operating Risks 5 One of the most important operating risks for NSPI is weather-related service disruptions. The 6 Company's service territory is characterized by severe ice storms and wind conditions, including 7 tropical storms and...

AI summary NSPI faces operating risks from severe weather-related service disruptions and the impact of the Energy Reform (2024) Act. The company seeks to continue a storm rider to recover costs from weather events and anticipates changes in regulation and operations due to the new legislation, which may introduce uncertainty for investors.

- table. 4 Intermediate Generation Unit Net Book Value Current Classification New Classification Tufts Cove 1 $16.5M 46.3% Energy 5.3% Energy 53.7% Demand 94.7% Demand 46.3% Energy 18.4% Energy Tufts Cove 2 $28.8M 53.7% Demand 81.6% Demand...

AI summary The table shows changes in the classification of intermediate generation units at Tufts Cove from energy to demand, with significant shifts in percentages and net book values. The average classification also reflects a notable change from demand to energy.

NON-CONFIDENTIAL 1 Request DR-3: 2 3 Please indicate whether the ELCC factors relied upon by NS Power in resource planning 4 reflect resource performance during the annual peak load hour, the top three-monthly peak 5 load hours, a reliabil...

AI summary NS Power explains that its ELCC factors are based on maintaining a loss of load expectation of 0.1 days per year, considering peak load events during winter months when heating demand is highest. The ELCC values are derived from probabilistic assessments over many years of weather and load data, not just specific hours.

COSS CA DR-8 Attachment 1 Page 3 of 30 Alert Notification GRLF Mon 19-Nov-18 17:16 Alert Notification LIIR Mon 19-Nov-18 17:17 Alert Cancellation LIIR Mon 19-Nov-18 19:55 Alert Cancellation GRLF Mon 19-Nov-18 19:55 Advisory Cancellation LI...

AI summary The text provides a chronological list of alerts, advisories, interruptions, and restorations related to grid operations, including specific dates, times, and affected systems such as GRLF and LIIR teams, along with reserve activations and cancellations.

COSS CA DR-8 Attachment 1 Page 4 of 30 Message Time Alert Notification LIIR Fri 7-Dec-18 7:19 Alert Cancellation LIIR Fri 7-Dec-18 8:27 Alert Cancellation GRLF Fri 7-Dec-18 8:27 Advisory Cancellation LIIR Fri 7-Dec-18 10:14 Advisory Cancel...

AI summary The document provides a timeline of alerts and advisories related to the Grid Reliability Framework (GRLF) and Load Interruption and Interruption Response (LIIR) from December 2018 to March 2019, indicating various notifications and cancellations over this period.

COSS CA DR-8 Attachment 1 Page 5 of 30 Advisory GRLF Fri 10-May-19 8:16 Advisory LIIR Fri 10-May-19 8:39 Advisory Cancellation GRLF Fri 10-May-19 10:06 Advisory Cancellation LIIR Fri 10-May-19 10:06 Advisory GRLF and Shore Sat 11-May-19 8:...

AI summary The document contains a series of advisories and alerts related to the Grid Reliability Framework (GRLF) and Load Interruption and Interruption Response (LIIR) issued over several dates in 2019. These advisories include notifications, cancellations, and alerts related to grid reliability and load interruption management.

COSS CA DR-8 Attachment 1 Page 6 of 30 Message Time Alert Cancellation LIIR Thu 14-Nov-19 11:02 Alert Cancellation GRLF and Shore Thu 14-Nov-19 11:03 Advisory Cancellation LIIR T and C Thu 14-Nov-19 11:04 Advisory Cancellation LIIR Thu 14-...

AI summary The document contains a series of alerts and advisories related to the Grid Reliability Framework (GRLF) and Load Interruption and Interruption Response (LIIR) from November 2019 to October 2020, including their cancellations. These alerts and advisories appear to be related to grid reliability and load management activities.

COSS CA DR-8 Attachment 1 Page 8 of 30 Alert Cancellation LIIR Sat 9-Jan-21 11:43 Alert Cancellation GRLF and Shore Sat 9-Jan-21 11:43 Advisory Cancellation LIIR Sat 9-Jan-21 11:44 Advisory Cancellation GRLF and Shore Sat 9-Jan-21 11:44 Ad...

AI summary The document lists a series of alerts, advisories, and restorations related to the Grid Reliability Framework (GRLF) and Load Interruption and Interruption Response (LIIR) on specific dates in January and March 2021. These entries indicate the timing and nature of grid-related events, including alerts, cancellations, and restoration actions.

COSS CA DR-8 Attachment 1 Page 13 of 30 Message Time Advisory GRLF and Shore Wed 12-Jan-22 6:52 Advisory LIIR Wed 12-Jan-22 6:52 Advisory Cancellation LIIR Wed 12-Jan-22 10:01 Advisory Cancellation GRLF and Shore Wed 12-Jan-22 10:01 Adviso...

AI summary This document presents a timeline of advisories, alerts, interruptions, and restoration notices related to GRLF, Shore, and LIIR systems and services from January 12 to January 21, 2022. It reflects ongoing communication and operational updates for these systems.

COSS CA DR-8 Attachment 1 Page 14 of 30 Message Time RESTORE LIIR Team Blue Fri 21-Jan-22 12:37 Alert Cancellation LIIR T and C Fri 21-Jan-22 16:10 RESTORE GRLF and Shore Fri 21-Jan-22 16:12 Interruption GRLF and Shore Sat 22-Jan-22 9:01 I...

AI summary The document contains a log of alerts, interruptions, and restorations related to LIIR teams and GRLF and Shore systems, spanning from January 21, 2022, to March 1, 2022. These entries include timestamps for events such as alert cancellations, interruptions, and restoration actions, indicating system or service disruptions and their resolutions.

COSS CA DR-8 Attachment 1 Page 15 of 30 Advisory LIIR T and C Tue 1-Mar-22 6:32 Alert GRLF and Shore Tue 1-Mar-22 6:33 Alert LIIR Tue 1-Mar-22 6:34 Advisory Cancellation LIIR T and C Tue 1-Mar-22 11:01 Alert Cancellation LIIR Tue 1-Mar-22...

AI summary The document contains a series of alerts, advisories, and interruptions related to LIIR, GRLF, and Shore systems, including their activation, cancellation, and restoration on various dates in March 2022.

COSS CA DR-8 Attachment 1 Page 17 of 30 Advisory Cancellation LIIR Tue 9-Aug-22 14:33 Advisory GRLF and Shore Tue 23-Aug-22 16:16 Advisory LIIR Tue 23-Aug-22 16:16 Advisory Cancellation GRLF and Shore Tue 23-Aug-22 18:11 Advisory Cancellat...

AI summary The document contains a list of advisories, alerts, and interruptions related to the Lighthouse Island Integrated Resource (LIIR) and the Grand River Lowland Flood (GRLF) and Shore from August 2022 to October 2022. These advisories include cancellations, restorations, and alerts issued on specific dates and times.

COSS CA DR-8 Attachment 1 Page 19 of 30 Message Time Alert LIIR Tue 15-Nov-22 16:08 Interruption GRLF and Shore Tue 15-Nov-22 17:18 Interruption LIIR Team Red 18 MW Tue 15-Nov-22 17:19 Interruption LIIR Team Yellow 15 MW Tue 15-Nov-22 17:2...

AI summary This document contains a log of alerts, interruptions, and restorations related to LIIR, GRLF, and Shore systems on multiple dates in November 2022. It also references a partially confidential appendix from a 2026-2027 GRA direct evidence filing.

COSS CA DR-8 Attachment 1 Page 24 of 30 Advisory LIIR Thu 1-Jun-23 17:00 Advisory LIIR T and C Thu 1-Jun-23 17:01 Alert GRLF and Shore Thu 1-Jun-23 17:01 Alert LIIR Thu 1-Jun-23 17:01 Alert LIIR T and C Thu 1-Jun-23 17:02 Interruption GRLF...

AI summary The text contains a list of alerts, interruptions, and restorations related to LIIR (likely a power system or grid management entity) and GRLF and Shore (possibly another system or region) on two dates in June 2023. It outlines events such as advisories, alerts, interruptions, and restorations involving different teams and MW capacities.

COSS CA DR-8 Attachment 1 Page 25 of 30 Message Time Advisory LIIR T and C Thu 22-Jun-23 9:39 Alert GRLF and Shore Thu 22-Jun-23 10:07 Alert LIIR Thu 22-Jun-23 10:08 Advisory Cancellation LIIR T and C Thu 22-Jun-23 14:18 Alert Cancellation...

AI summary This document contains a series of alerts and advisories related to grid reliability and load forecasting (GRLF) and loss of illumination and interruption report (LIIR) events, spanning from June 2023 to December 2023. These alerts and advisories include notifications, cancellations, and updates related to system performance and reliability.

COSS CA DR-8 Attachment 1 Page 26 of 30 Message Time Alert Cancellation GRLF and Shore Wed 6-Dec-23 10:14 Advisory Cancellation LIIR T and C Wed 6-Dec-23 10:15 Advisory Cancellation LIIR Wed 6-Dec-23 10:17 Advisory Cancellation GRLF and Sh...

AI summary The text includes a table listing various alerts and advisories related to grid reliability and load forecasting (GRLF) and loss of illumination and interruption reports (LIIR) with timestamps. It also references a partially confidential appendix from a 2026-2027 GRA Direct Evidence document.

Large industrial load interruption events Event Start Time End Time LIIR Interruption 18-Jun-23 17:17 18-Jun-23 20:37 LIIR Interruption 1-Jun-23 17:03 1-Jun-23 18:07 LIIR Interruption 4-Feb-23 11:13 4-Feb-23 19:19 LIIR Interruption 2-Feb-2...

AI summary The document lists multiple large industrial load interruption events (LIIR) with specific dates and times, indicating frequent disruptions in power supply. These events are part of a partially confidential appendix in a regulatory proceeding related to GRA (Grid Reliability and Load Forecasting).

Under-frequency Load Shedding occurred twice with loss of transmission due to line icing from freezing rain. Start Restored Event 29-Nov-18 8:58 29-Nov-18 16:52 Icing event. Tripping of the transmission lines in the Cape Breton Export Corr...

AI summary Under-frequency Load Shedding occurred twice due to loss of transmission caused by line icing from freezing rain. The first incident occurred on 29-Nov-18, and the second on 16-Jan-23, both involving tripping of transmission lines in the Cape Breton Export Corridor and the NS-NB Tie line, respectively.

Largest storm events with multi-day customer outages Start of Event Event 5-Jul-14 Hurricane Arthur 29-Jan-16 Jan 2016 Snow (Jan 29 to Feb 1) 10-Oct-16 Thanksgiving Storm 2016 (Oct 10 to 12) 25-Dec-17 Christmas 2017 Storm (Dec 25 to 26) 4-...

AI summary The document lists major storm events in Nova Scotia that caused multi-day customer outages, including Hurricane Arthur (2014), the Jan 2016 Snow event, and Hurricane Fiona (2022). These events are referenced in a partially confidential appendix related to the 2026-2027 GRA Direct Evidence.

COSS CA DR-9 Attachment 1 Page 2 of 627 Start Time End Time ANL_MW 1/3/2019 22:00 1/3/2019 23:00 1500.7 1/3/2019 23:00 1/4/2019 0:00 1495.3 1/4/2019 0:00 1/4/2019 1:00 1461.1 1/4/2019 1:00 1/4/2019 2:00 1438.1 1/4/2019 2:00 1/4/2019 3:00 1...

AI summary The document presents a table with timestamps and corresponding ANL_MW values, likely representing load data or energy usage over a specific period in early 2019. The data appears to be related to grid operations or reliability forecasting.

COSS CA DR-9 Attachment 1 Page 45 of 627 Start Time End Time ANL_MW 5/9/2019 9:00 5/9/2019 10:00 5/9/2019 10:00 5/9/2019 11:00 883.2 889.2 5/9/2019 11:00 5/9/2019 12:00 880.5 5/9/2019 12:00 5/9/2019 13:00 874.0 5/9/2019 13:00 5/9/2019 14:0...

AI summary The document provides a table of apparent energy load (ANL_MW) data recorded over multiple time intervals on May 9th to May 12th, 2019. This data appears to be related to energy usage and may be used for analysis in a regulatory proceeding.

COSS CA DR-9 Attachment 1 Page 159 of 627 Start Time End Time ANL_MW 4/5/2020 21:00 4/5/2020 22:00 1124.8 4/5/2020 22:00 4/5/2020 23:00 4/5/2020 23:00 4/6/2020 0:00 1088.3 1095.7 4/6/2020 0:00 4/6/2020 1:00 1029.5 4/6/2020 1:00 4/6/2020 2:...

AI summary This document contains a table with timestamps and corresponding ANL_MW values, likely representing energy demand or generation data over a period in April 2020. The data appears to be part of a regulatory proceeding, possibly related to energy usage patterns or system reliability analysis.

COSS CA DR-9 Attachment 1 Page 169 of 627 Start Time End Time ANL_MW 5/5/2020 1:00 5/5/2020 2:00 5/5/2020 2:00 5/5/2020 3:00 875.1 852.2 5/5/2020 3:00 5/5/2020 4:00 820.0 5/5/2020 4:00 5/5/2020 5:00 789.7 5/5/2020 5:00 5/5/2020 6:00 799.1...

AI summary The text provides a table showing the ANL_MW (apparent net load in megawatts) over a series of time intervals from May 5, 2020, to May 7, 2020. This data may be relevant to energy generation, grid operations, or resource planning in Nova Scotia.

COSS CA DR-9 Attachment 1 Page 175 of 627 Start Time End Time ANL_MW 5/22/2020 13:00 5/22/2020 14:00 5/22/2020 14:00 5/22/2020 15:00 711.4 732.3 5/22/2020 15:00 5/22/2020 16:00 717.9 5/22/2020 16:00 5/22/2020 17:00 711.4 5/22/2020 17:00 5/...

AI summary The document presents a table with time intervals and corresponding ANL_MW values, likely representing energy demand or load data over a specific period in May 2020. It also references a partially confidential appendix from a regulatory proceeding related to the 2026-2027 GRA Direct Evidence.

COSS CA DR-9 Attachment 1 Page 211 of 627 Start Time End Time ANL_MW 9/4/2020 13:00 9/4/2020 14:00 9/4/2020 14:00 9/4/2020 15:00 973.2 970.7 9/4/2020 15:00 9/4/2020 16:00 954.1 9/4/2020 16:00 9/4/2020 17:00 965.7 9/4/2020 17:00 9/4/2020 18...

AI summary The document presents a table of ANL_MW values recorded over multiple time intervals from September 4, 2020, to September 7, 2020, likely representing energy demand or generation data. The data appears to be part of a regulatory proceeding, possibly related to system reliability or energy usage patterns.

COSS CA DR-9 Attachment 1 Page 274 of 627 Start Time End Time ANL_MW 3/7/2021 6:00 3/7/2021 7:00 1431.0 3/7/2021 7:00 3/7/2021 8:00 3/7/2021 8:00 3/7/2021 9:00 1483.1 1507.1 3/7/2021 9:00 3/7/2021 10:00 1470.2 3/7/2021 10:00 3/7/2021 11:00...

AI summary This document presents a table of energy demand data for a specific period, showing the start and end times along with corresponding ANL_MW values. The data spans multiple days in March 2021 and appears to be part of a regulatory proceeding related to energy usage and planning.

COSS CA DR-9 Attachment 1 Page 293 of 627 Start Time End Time ANL_MW 5/1/2021 17:00 5/1/2021 18:00 857.7 5/1/2021 18:00 5/1/2021 19:00 850.8 5/1/2021 19:00 5/1/2021 20:00 906.1 5/1/2021 20:00 5/1/2021 21:00 973.8 5/1/2021 21:00 5/1/2021 22...

AI summary The text contains a table of time-based data, showing start and end times along with corresponding ANL_MW values, likely representing energy demand or generation levels over a specific period in May 2021.

COSS CA DR-9 Attachment 1 Page 311 of 627 Start Time 6/23/2021 5:00 End Time 6/23/2021 6:00 ANL_MW 664.1 6/23/2021 6:00 6/23/2021 7:00 765.6 6/23/2021 7:00 6/23/2021 8:00 862.9 6/23/2021 8:00 6/23/2021 9:00 879.5 6/23/2021 9:00 6/23/2021 1...

AI summary This document contains a table of load data (in ANL_MW) for specific time intervals on June 23, 2021, through June 26, 2021. It appears to be part of a regulatory proceeding related to energy load management and planning.

COSS CA DR-9 Attachment 1 Page 321 of 627 Start Time End Time ANL_MW 7/22/2021 9:00 7/22/2021 10:00 7/22/2021 10:00 7/22/2021 11:00 1222.1 1249.7 7/22/2021 11:00 7/22/2021 12:00 1256.3 7/22/2021 12:00 7/22/2021 13:00 1222.2 7/22/2021 13:00...

AI summary The document presents a table of ANL_MW values over a period of time, showing energy load data for a specific date range. This data may be relevant to electricity generation, grid management, or resource planning.

COSS CA DR-9 Attachment 1 Page 323 of 627 Start Time End Time ANL_MW 7/28/2021 5:00 7/28/2021 6:00 933.8 7/28/2021 6:00 7/28/2021 7:00 7/28/2021 7:00 7/28/2021 8:00 1013.3 1114.0 7/28/2021 8:00 7/28/2021 9:00 1152.1 7/28/2021 9:00 7/28/202...

AI summary This document presents a table of ANL_MW (apparent net load in megawatts) values recorded between July 28, 2021, and July 31, 2021, showing fluctuations in electricity demand over time. The data appears to be part of a regulatory proceeding related to energy management and planning.

COSS CA DR-9 Attachment 1 Page 344 of 627 Start Time End Time ANL_MW 9/27/2021 11:00 9/27/2021 12:00 979.9 9/27/2021 12:00 9/27/2021 13:00 926.6 9/27/2021 13:00 9/27/2021 14:00 885.1 9/27/2021 14:00 9/27/2021 15:00 810.6 9/27/2021 15:00 9/...

AI summary This table presents a series of time-stamped data points showing the start and end times of specific events along with corresponding ANL_MW values. It appears to be a log of energy-related measurements or system performance metrics recorded on September 27, 2021, and continuing into September 29, 2021.

COSS CA DR-9 Attachment 1 Page 345 of 627 Start Time End Time ANL_MW 9/30/2021 9:00 9/30/2021 10:00 1085.5 9/30/2021 10:00 9/30/2021 11:00 1130.3 9/30/2021 11:00 9/30/2021 12:00 1154.3 9/30/2021 12:00 9/30/2021 13:00 1148.3 9/30/2021 13:00...

AI summary The document presents a table with timestamps and corresponding ANL_MW values, likely representing energy demand or generation data over a specific period in October 2021. The data appears to be part of a regulatory proceeding related to energy management and system performance.

COSS CA DR-9 Attachment 1 Page 350 of 627 Start Time End Time ANL_MW 10/14/2021 23:00 10/15/2021 0:00 10/15/2021 0:00 10/15/2021 1:00 958.4 906.1 10/15/2021 1:00 10/15/2021 2:00 882.3 10/15/2021 2:00 10/15/2021 3:00 862.3 10/15/2021 3:00 1...

AI summary This document presents a table of data showing the start and end times along with corresponding ANL_MW values, likely representing energy demand or generation over a period from October 14 to October 17, 2021. The data appears to be part of a regulatory proceeding and may be used for analysis of energy usage patterns or system reliability.

COSS CA DR-9 Attachment 1 Page 353 of 627 Start Time End Time ANL_MW 10/23/2021 17:00 10/23/2021 18:00 1148.8 10/23/2021 18:00 10/23/2021 19:00 10/23/2021 19:00 10/23/2021 20:00 1120.8 1098.7 10/23/2021 20:00 10/23/2021 21:00 1047.1 10/23/...

AI summary The text presents a table of time-stamped data showing the ANL_MW (apparent net load in megawatts) values over a period from October 23, 2021, to October 26, 2021. This data likely represents electricity demand or generation levels at different times, which is relevant to grid operations and resource planning.

COSS CA DR-9 Attachment 1 Page 412 of 627 Start Time End Time ANL_MW 4/13/2022 19:00 4/13/2022 20:00 4/13/2022 20:00 4/13/2022 21:00 1144.3 1171.6 4/13/2022 21:00 4/13/2022 22:00 1118.8 4/13/2022 22:00 4/13/2022 23:00 1041.2 4/13/2022 23:0...

AI summary The text presents a table of hourly energy demand data (ANL_MW) from April 13 to April 16, 2022, with start and end times for each interval. This data appears to be part of a regulatory proceeding document, likely used for analyzing energy consumption patterns or system reliability.

COSS CA DR-9 Attachment 1 Page 437 of 627 Start Time 6/25/2022 17:00 End Time 6/25/2022 18:00 ANL_MW 1172.4 6/25/2022 18:00 6/25/2022 19:00 1157.7 6/25/2022 19:00 6/25/2022 20:00 1149.0 6/25/2022 20:00 6/25/2022 21:00 1182.0 6/25/2022 21:0...

AI summary The text presents a table of ANL_MW values recorded over a period of time from June 25, 2022, to June 28, 2022, showing fluctuations in power demand. This data may be relevant to energy generation, grid operations, or resource planning.

COSS CA DR-9 Attachment 1 Page 438 of 627 Start Time End Time ANL_MW 6/28/2022 15:00 6/28/2022 16:00 1102.1 6/28/2022 16:00 6/28/2022 17:00 6/28/2022 17:00 6/28/2022 18:00 1066.0 1110.1 6/28/2022 18:00 6/28/2022 19:00 1102.2 6/28/2022 19:0...

AI summary This document presents a table with timestamps and corresponding ANL_MW values, likely representing energy demand or generation data over a period from June 28, 2022, to July 1, 2022. The data appears to be technical and related to grid operations or resource planning.

COSS CA DR-9 Attachment 1 Page 454 of 627 Start Time End Time ANL_MW 8/14/2022 7:00 8/14/2022 8:00 938.0 8/14/2022 8:00 8/14/2022 9:00 997.9 8/14/2022 9:00 8/14/2022 10:00 1082.7 8/14/2022 10:00 8/14/2022 11:00 1137.1 8/14/2022 11:00 8/14/...

AI summary The text presents a table containing time-stamped data on Apparent Net Load (ANL_MW) over a 24-hour period on August 14-15, 2022. This data likely represents electricity demand fluctuations across different time intervals, which may be relevant for grid management, load forecasting, or system reliability analysis.

COSS CA DR-9 Attachment 1 Page 464 of 627 Start Time End Time ANL_MW 9/12/2022 11:00 9/12/2022 12:00 9/12/2022 12:00 9/12/2022 13:00 1138.5 1157.4 9/12/2022 13:00 9/12/2022 14:00 1169.0 9/12/2022 14:00 9/12/2022 15:00 1166.8 9/12/2022 15:0...

AI summary This table presents a time-series of ANL_MW values from September 12 to September 15, 2022, likely representing energy demand or generation data. The data shows fluctuations in MW values over specific time intervals, suggesting potential analysis for grid performance or resource planning.

COSS CA DR-9 Attachment 1 Page 465 of 627 Start Time 9/15/2022 9:00 End Time 9/15/2022 10:00 ANL_MW 907.7 9/15/2022 10:00 9/15/2022 11:00 867.9 9/15/2022 11:00 9/15/2022 12:00 816.5 9/15/2022 12:00 9/15/2022 13:00 809.4 9/15/2022 13:00 9/1...

AI summary This document contains a table with time intervals and corresponding ANL_MW values, likely related to energy consumption or generation data. The data spans from September 15, 2022, to September 18, 2022, and includes values ranging from 512.7 to 908.2. The table appears to be part of a regulatory proceeding, possibly related to energy usage patterns or system reliability.

COSS CA DR-9 Attachment 1 Page 489 of 627 11/24/2022 8:00 11/24/2022 9:00 1457.7 11/24/2022 9:00 11/24/2022 10:00 1395.7 11/24/2022 10:00 11/24/2022 11:00 1296.9 11/24/2022 11:00 11/24/2022 12:00 1263.3 11/24/2022 12:00 11/24/2022 13:00 12...

AI summary The text presents a series of timestamps and numerical values, likely representing energy usage or system performance metrics over a 24-hour period on November 24 and 25, 2022. These data points may be used for analysis related to grid operations, load management, or system performance.

COSS CA DR-9 Attachment 1 Page 523 of 627 Start Time End Time ANL_MW 3/3/2023 12:00 3/3/2023 13:00 1413.9 3/3/2023 13:00 3/3/2023 14:00 1348.1 3/3/2023 14:00 3/3/2023 15:00 1330.4 3/3/2023 15:00 3/3/2023 16:00 1321.2 3/3/2023 16:00 3/3/202...

AI summary The text presents a table with time intervals and corresponding ANL_MW values, indicating energy demand or load data over a period from March 3, 2023, to March 5, 2023. This data could be used for analyzing grid performance, demand forecasting, or resource planning.

COSS CA DR-9 Attachment 1 Page 544 of 627 Start Time End Time ANL_MW 5/3/2023 19:00 5/3/2023 20:00 5/3/2023 20:00 5/3/2023 21:00 1251.1 1268.0 5/3/2023 21:00 5/3/2023 22:00 1227.2 5/3/2023 22:00 5/3/2023 23:00 1125.8 5/3/2023 23:00 5/4/202...

AI summary The document provides a table showing the start and end times for various intervals along with corresponding ANL_MW values, likely representing energy demand or generation data over a period from May 3, 2023, to May 6, 2023. The data appears to be part of a regulatory proceeding and may be used for analysis related to energy usage patterns or system reliability.

COSS CA DR-9 Attachment 1 Page 546 of 627 Start Time End Time ANL_MW 5/9/2023 15:00 5/9/2023 16:00 5/9/2023 16:00 5/9/2023 17:00 835.6 916.9 5/9/2023 17:00 5/9/2023 18:00 1006.7 5/9/2023 18:00 5/9/2023 19:00 1023.6 5/9/2023 19:00 5/9/2023...

AI summary The text presents a table with timestamps and corresponding ANL_MW values, likely representing energy demand or generation data over several days in May 2023. This data may be relevant to grid operations, energy planning, or regulatory analysis.

COSS CA DR-9 Attachment 1 Page 552 of 627 Start Time End Time ANL_MW 5/27/2023 3:00 5/27/2023 4:00 5/27/2023 4:00 5/27/2023 5:00 777.3 792.4 5/27/2023 5:00 5/27/2023 6:00 768.0 5/27/2023 6:00 5/27/2023 7:00 740.0 5/27/2023 7:00 5/27/2023 8...

AI summary The text presents a table showing energy demand (in ANL_MW) for specific time intervals on May 27, 28, and 29, 2023. The data appears to be part of a regulatory proceeding and includes partially confidential information.

COSS CA DR-9 Attachment 1 Page 561 of 627 Start Time End Time ANL_MW 6/22/2023 9:00 6/22/2023 10:00 1009.6 6/22/2023 10:00 6/22/2023 11:00 6/22/2023 11:00 6/22/2023 12:00 1031.7 1052.7 6/22/2023 12:00 6/22/2023 13:00 1052.1 6/22/2023 13:00...

AI summary The document presents a table with timestamps and corresponding ANL_MW values, likely representing energy demand or generation data over a multi-day period in June 2023. The data appears to be part of a regulatory proceeding, possibly related to grid operations or energy resource planning.

COSS CA DR-9 Attachment 1 Page 563 of 627 Start Time End Time ANL_MW 6/28/2023 5:00 6/28/2023 6:00 6/28/2023 6:00 6/28/2023 7:00 669.6 695.8 6/28/2023 7:00 6/28/2023 8:00 725.4 6/28/2023 8:00 6/28/2023 9:00 775.9 6/28/2023 9:00 6/28/2023 1...

AI summary The text presents a table of ANL_MW (apparent net load in megawatts) values recorded at various time intervals from June 28, 2023, to July 1, 2023. These data points likely represent energy demand or generation metrics, potentially relevant to grid management or regulatory analysis.

COSS CA DR-9 Attachment 1 Page 570 of 627 Start Time End Time ANL_MW 7/18/2023 15:00 7/18/2023 16:00 7/18/2023 16:00 7/18/2023 17:00 1349.1 1380.7 7/18/2023 17:00 7/18/2023 18:00 1359.6 7/18/2023 18:00 7/18/2023 19:00 1329.8 7/18/2023 19:0...

AI summary This document presents a table showing the ANL_MW (Apparent Net Load in Megawatts) for various time intervals between July 18, 2023, and July 21, 2023. These data points represent the net electricity demand during specific hours, which is likely relevant to grid operations and resource planning.

COSS CA DR-9 Attachment 1 Page 615 of 627 Start Time End Time ANL_MW 11/26/2023 21:00 11/26/2023 22:00 11/26/2023 22:00 11/26/2023 23:00 1310.5 1218.6 11/26/2023 23:00 11/27/2023 0:00 1145.8 11/27/2023 0:00 11/27/2023 1:00 1057.0 11/27/202...

AI summary The text presents a table with time intervals and corresponding ANL_MW values, likely representing energy load or generation data over several days in late November 2023. The table is part of a regulatory proceeding document and may be used for analyzing energy usage patterns or system reliability.

COSS CA DR-9 Attachment 1 Page 618 of 627 Start Time End Time ANL_MW 12/5/2023 15:00 12/5/2023 16:00 12/5/2023 16:00 12/5/2023 17:00 1407.2 1525.5 12/5/2023 17:00 12/5/2023 18:00 1604.6 12/5/2023 18:00 12/5/2023 19:00 1575.1 12/5/2023 19:0...

AI summary This document contains a table with time-stamped data on ANL_MW (apparent net load in megawatts) from December 5, 2023, to December 8, 2023. The data shows fluctuations in apparent net load over specific time intervals, which may be relevant for analyzing grid performance and energy demand patterns.

COSS CA DR-9 Attachment 1 Page 623 of 627 Start Time End Time ANL_MW 12/20/2023 5:00 12/20/2023 6:00 12/20/2023 6:00 12/20/2023 7:00 1054.5 1160.7 12/20/2023 7:00 12/20/2023 8:00 1259.9 12/20/2023 8:00 12/20/2023 9:00 1246.4 12/20/2023 9:0...

AI summary The text presents a table of time-based data showing start and end times along with corresponding ANL_MW values, likely representing energy demand or generation metrics over a period from December 20, 2023, to December 23, 2023. The data appears to be part of a regulatory proceeding, possibly related to grid operations or energy resource planning.

NON-CONFIDENTIAL model dispatches into the highest net load hours.2 2 3 4 The NS Block of energy delivered to NS over the Maritime Link is a firm energy import and 5 treated as such for ELCC. The ELCC for the basic block is mainly influenc...

AI summary The document discusses the Effective Load-Carrying Capacity (ELCC) of energy imports delivered to Nova Scotia via the Maritime Link. Firm energy imports are treated differently from non-firm imports, with the latter having an ELCC of zero due to timing and reliability factors.

Acronym Description ABNO available but not operating ABNO(SC) available and operating in synchronous condenser mode PARTIALLY CONFIDENTIAL 2026-2027 GRA Direct Evidence Appendix 12A(2) Page 693 of 1218 REDACTED (CONFIDENTIAL INFORMATION RE...

AI summary This document is a partially confidential appendix from a regulatory proceeding, containing information related to the 2026-2027 GRA (Grid Reliability Assessment) and includes definitions of acronyms such as ABNO and ABNO(SC). The content is redacted, and specific details are not fully disclosed.

COSS CA DR-58 Attachment 2 Page 1 of 22 PARTIALLY CONFIDENTIAL 2026-2027 GRA Direct Evidence Appendix 12A(2) Page 860 of 1218 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Date Time System (MW) 2/2/2015 18:00 1,979.0 2/24/2015 20:00 1,975.0...

AI summary The document presents a table of system load data in megawatts (MW) recorded at various dates and times in 2015. This data appears to be part of a regulatory proceeding related to the 2026-2027 General Rate Application (GRA) and may be used for analyzing system performance and reliability.

NON-CONFIDENTIAL 1 In the BIA presentation, the ELCC for "Steam" appears to be a weighted average of the 2 coal and oil ELCC's in Table 18 from the E3 PRM study. In the E3 study, the row titled 3 "Oil" represents NS Powers diesel CT fleet...

AI summary The document discusses the Effective Load-Carrying Capacity (ELCC) values for various energy sources in the E3 PRM study, highlighting discrepancies in how they were calculated and applied, including the inclusion of outdated or inappropriate data points such as Annapolis Tidal and the misclassification of oil units under the 'Steam' category. NS Power recommends using 0% ELCC for solar in future planning due to declining capacity value.

Cost of Service Study Process (NSUARB M11475) NSPI Responses to PHP Data Requests 1 Request DR-14: 2 3 Please provide the following data for any reliability/emergency events called due to limited 4 supply of generating capacity over the pa...

AI summary The document outlines a data request (DR-14) from the NSUARB to NSPI regarding reliability/emergency events due to limited generating capacity between 2019 and 2023. NSPI responds by referring to a table containing information on 20 industrial load interruption events, with details on the Large Industrial – Interruptible Rider (LIIR) tariff.

NON-CONFIDENTIAL (a) (b) (d) (c ) (i) Unserved Duration h:mm Event Type Start time End time Cause Energy (MWh) LIIR 18-Jun-23 18-Jun-23 The system load exceeded the available 77 3:20 Interruption 17:17 20:37 generation capacity and operati...

AI summary The table lists various interruptions and their associated details, including dates, durations, causes, and energy impacts, with LIIR (Large Industrial – Interruptible Rider) being a recurring event type. The data is referenced from CA DR-58 Attachment 1, and 2023 data is available only for large customers and system load.

(a) (b) (d) (c) Duration (days, hours) Description Start time End time Cause 5, 20 Hurricane Dorian 7-Sep-19 10:30 13-Sep-19 7:26 Numerous trips to transmission elements caused by high winds Outage to line L-8001 to NB due to ice build-up,...

AI summary The document details two outages: one caused by Hurricane Dorian in September 2019, and another due to transmission line icing in January 2021. Both events led to disruptions in energy imports and customer interruptions. The text is part of a partially confidential GRA Direct Evidence Appendix.

The GRA Decision provided as follows: [361] In this proceeding, several concerns were raised about NS Power's cost of service methodologies applied in this GRA. These concerns included the use of the minimum system study for the classifica...

AI summary The GRA Decision addresses concerns about NS Power's cost of service methodologies, including the use of the minimum system study and LF/3CP method for cost classification. The Board agrees to update the COSS and Line Loss Study to reflect recent system developments and directs semi-annual progress reports starting in 2024.

Evergreen IRP Outcomes: Action Plan Action Plan Item Focus Plan to 2030/COSS Areas of Interest 1: Regional Integration Regional integration strategy: access to firm capacity and improve system reliability Reliability Tie (2028) 2: Electrif...

AI summary The Evergreen Integrated Resource Plan (IRP) Action Plan outlines key initiatives for 2030, including regional integration, electrification, thermal retirement, and demand response strategies. It emphasizes improving system reliability, evaluating electrification's role, progressing thermal plant retirements, and expanding demand response programming to 75MW by 2025.

Theory: Build Capacity to Peak Demand → Reliability - Resource planning targets a planning reserve margin at a target level of reliability - Allocation of capacity costs to demand is based on coincident peak

AI summary The theory discusses building capacity to meet peak demand for reliability, with resource planning targeting a reserve margin and allocating capacity costs based on coincident peak demand.

Reality: Grid Stress Occurs Below Peak Demand - Reliability events occur during hours where loads are not at peak - Conversely, reliability events don't always occur when loads are at peak

AI summary Grid stress and reliability events can occur even when demand is below peak levels, challenging the assumption that peak demand is the sole indicator of system stress.

Theory: Build Capacity to Peak Demand → Reliability - Resource planning targets a planning reserve margin at a target level of reliability - Allocation of capacity costs to demand is based on coincident peak

AI summary The theory of building capacity to meet peak demand focuses on ensuring reliability through planning reserve margins and allocating capacity costs based on coincident peak demand levels.

Reality: Grid Stress Occurs Below Peak Demand - Reliability events occur during hours where loads are not at peak - Conversely, reliability events don't always occur when loads are at peak

AI summary Grid stress and reliability events can occur even when demand is below peak levels, indicating that system reliability is not solely dependent on peak demand conditions.

Another Twist: Adjusted Net Load is a Better Metric for Reliability - Another problem with thinking of demand as the cause of capacity requirements is that other factors (solar, wind, imports) affect reliability - NS Power has adopted net...

AI summary The text discusses the limitations of using demand as the sole metric for capacity requirements, highlighting that other factors like solar, wind, and imports also influence reliability. It notes that NS Power has adopted net load planning practices.

2026-2027 GRA Direct Evidence Appendix 12A(3) Page 134 of 310 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Current System: Load and Generation Reliability are Well Correlated Future System: Evidence from High-Renewable Systems Suggests Lowe...

AI summary The document compares the current system's load and generation reliability correlation with evidence from high-renewable systems, suggesting a lower correlation in the future. This analysis is part of a regulatory proceeding related to energy planning and reliability.

2026-2027 GRA Direct Evidence Appendix 12A(3) Page 150 of 310 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 1 LOLP. Considerable time will be required to make the necessary internal process changes to fully 2 implement this methodology on an...

AI summary The implementation of the Loss of Load Probability (LOLP) methodology requires significant internal process changes and will take considerable time to fully implement on an annual basis.

PHP and NS Power Coordination - § Unique Load Characteristics support the need for PHP as a standalone customer class - §Active Demand Control by NSP - §Ramped up to optimize system dispatch (e.g. avoid renewable curtailment) - §Ramped dow...

AI summary The document discusses the unique load characteristics of PHP (a customer class) and how NS Power manages it through active demand control, scheduling, and priority interruptible load to optimize system dispatch, avoid renewable curtailment, and ensure reliability.

NS Power Load Characteristics Only six monthly CPs in the past three years experienced a CP equal to, or greater than 80% of the Feb. 2023 System Peak. \ Data based on publicly available 10 min. interval data derived from NS Power OASIS we...

AI summary The document highlights that only six monthly capacity peaks (CPs) in the past three years reached or exceeded 80% of the February 2023 system peak, based on publicly available data from NS Power's OASIS website.

Issue 1 Generation Issue 1 a - Should the use of System Load Factor (SLF) to allocate generation investment costs between demand and energy continue to be used? Are there alternatives to the use of the 3CP allocation factor? Can AMI data b...

AI summary The SBA proposes replacing the System Load Factor (SLF) with a peaker methodology for allocating generation investment costs, emphasizing reliability, energy cost minimization, and clean energy contributions. They also suggest classifying transmission facilities based on function rather than using SLF, with some classified as generation or energy investments.

- 1. There is currenly one Long-Term Firm Point-to-Point Transmission Reservation (TSR400) - 2. The 1635 MW is the average of the 12 monthly Coincident System Peaks averaged for 2019 2020 from PI monthly peak data. The 1,797 MW is based on...

AI summary The document discusses the current Long-Term Firm Point-to-Point Transmission Reservation (TSR400) and provides details on system load data, including the calculation of 1635 MW as an average of 2019-2020 peaks and 1797 MW based on 2023 data with a 91% coincidence factor.

Pricing of Energy Balancing and Standby Demand Services: Wholesale vs Retail Markets

AI summary The document discusses the pricing of energy balancing and standby demand services in both wholesale and retail markets. It includes figures and visual representations that likely illustrate the differences and considerations in these market segments.

15 4.2.1.2 NSP PROPOSED APPROACH - 16 NS Power is proposing to replace the classification of generation rate base and OM&A - 17 separately by generation type with an overall classification by the system load factor. As 8 The effective load...

AI summary Nova Scotia Power (NSP) proposes replacing the classification of generation rate base and OM&A by generation type with an overall classification based on system load factor. The effective load carrying capability (ELCC) is defined as a measure of the capacity attributable to intermittent resources like wind or solar during peak demand.

16 Table 5 – Generation Allocations Fuel & Purchases Classification Fuel Energy Imports Energy Maritime Link System Load Factor Purchased Power – Biomass Fuel Energy Purchased Power – Biomass Non-Fuel Weighted Average Generation Rate Base...

AI summary Table 5 outlines generation allocations across various fuel types and classifications, including Energy, System Load Factor, and Effective Load Carrying Capability. It includes entries such as Fuel, Imports, Maritime Link, and Wind under different interconnection services.

4.2.2.2 NSP PROPOSED APPROACH - 2 NS Power is proposing to maintain the classification of fuel, imports, and export revenues - 3 to energy. Purchases are proposed to be classified using the system load factor. This - 4 methodology aligns w...

AI summary NS Power proposes to maintain the classification of fuel, imports, and export revenues to energy, using the system load factor for purchases. This approach aligns with the proposed methodology for generation rate base and operations and maintenance.

4.2.3.3 ELENCHUS OPINION - Radial-to-generation assets support generation so it is appropriate to classify these costs - on the same system load factor basis that is proposed to be applied to all generation.

AI summary The text discusses the classification of radial-to-generation assets on the same system load factor basis as all generation, emphasizing their support for generation.

4.2.2 System Stability Steam Commitment Requirements These parameters are updated by internal NS Power System Operator subject matter experts as required.

AI summary The System Stability Steam Commitment Requirements are updated by internal NS Power System Operator subject matter experts as needed.

4.8.3 Transmission System Restrictions Transmission system energy transfer restrictions as they affect generating unit dispatch: - Cape Breton Export energy transfer levels required to trigger arming of the group SPS targeting generating u...

AI summary This section discusses transmission system energy transfer restrictions and their impact on generating unit dispatch, including specific energy transfer levels that trigger actions such as arming SPS and committing generating units. The PLEXOS model is used to capture these transmission limits, and the system planning group will request updates from the system operator and FERM before each forecast.

System Losses G W h Ac tua l [ ] Ye ar Ac tua l [ ] Ye -1 ar Bu dg et [ ] Ye ar Bu dg et [ ] Ye +1 ar To l Sy Re ire ta ste nts m q u me Do ic E lec ic Sa les st tr me Ex Sa les ort p Ne Sy Los t ste m ses % \ [ Year] [Source] Forecast pre...

AI summary The chunk presents a table related to system losses, including actual and budgeted values for various metrics. The table includes columns for actual year, actual year-1, budget year, and budget year+1, but no specific data is provided. The table appears to be under the heading 'System Losses' and includes footnotes about the source of the forecast.

- (1) Annual requirement to purchase electricity from Independent Power Producers or other utilities over varying contract lengths. - (2) Purchasing commitments for transportation of fuel and transportation capacity on various pipelines. I...

AI summary The text outlines various long-term contractual obligations related to electricity purchases, fuel transportation, and transmission rights. It includes specific financial commitments, such as a $124 million gas transportation contract and a $197 million recovery plan for the Maritime Link. These obligations span several years and require regulatory approvals.

NS Power 2026-2027 General Rate Application NON-CONFIDENTIAL OP-09 1 Requirement: 2 3 Reliability Statistics for fossil fleet, and customer outage indices for NS Power and 4 comparison to latest Electricity Canada all Canada values. 5 6 Su...

AI summary The document presents reliability statistics for NS Power's fossil fleet and customer outage indices, comparing them to national benchmarks. It includes availability data for various power plants from 2012 to 2024 and highlights the fossil fleet's overall availability at 81.09%.

Customer Outage Indices NSPI All-In Data CEA REGION 2 NSPI NSPI NSPI CEA CEA CEA YEAR SAIFI SAIDI CAIDI SAIFI SAIDI CAIDI 2007 3.98 14.17 3.56 2.68 7.29 2.72 2008 4.15 11.29 2.72 2.76 8.56 3.10 2009 2.86 5.80 2.03 2.31 5.31 2.30 2010 4.34...

AI summary The table presents customer outage indices for NSPI and CEA Region 2 from 2007 to 2024, including metrics like SAIFI, SAIDI, and CAIDI. These indices provide insights into the frequency and duration of power outages over time.

OUR STRATEGIC PRIORITIES Always leading with Health & Safety Advancing Cleaner Energy towards our Net-Zero Vision Enhancing Reliability Driving Innovation Empowering our Teams & Communities Always Working to Minimize Cost Impacts for Custo...

AI summary The document outlines the strategic priorities of Nova Scotia Power Inc., emphasizing health and safety, cleaner energy initiatives, reliability, innovation, team empowerment, and minimizing cost impacts for customers.

Highlights: - The Maritime Link (NSPML) delivered over 130% of contractually required flows - TE Invested over $250M USD in the Storm Protection Plan and over $140M USD in grid modernization and distribution reliability. supporting the rec...

AI summary The Maritime Link exceeded its required performance, and significant investments were made in grid reliability and safety. NSPI and other utilities reported strong customer growth and improved safety metrics, with a 24% reduction in Lost Time Injury rates over five years.

Committed to World Class Safety 3% decrease in OSHA 2 injury rate, over the 5-year average of 1.05 1,925 Senior level management safety engagements in 2023 0.25 LTI 3 24% improvement over the 5-year average of 0.33

AI summary Nova Scotia Power has achieved a 3% decrease in OSHA injury rate over a 5-year average, along with a 24% improvement in LTI rate, and conducted 1,925 senior-level safety engagements in 2023, demonstrating a commitment to world-class safety standards.

More Efficient Scheduling Priority scheduling of dispatches based on circumstances

AI summary The text discusses the concept of priority scheduling of dispatches based on specific circumstances, likely referring to operational or regulatory procedures for managing energy or utility dispatches more efficiently.

Benefits to the business: - Safety for workers and communities - Voltage / grid stability and resilience 2 - Reduced line losses 3 - Better, faster service through automation 4 - Improved wire down detection 5 - Predictive maintenance 6

AI summary The text outlines benefits to the business, including worker and community safety, grid stability and resilience, reduced line losses, and improvements in service through automation, wire down detection, and predictive maintenance.

Advanced transformer monitoring Supporting reliability and enabling troubleshooting

AI summary The document discusses the importance of advanced transformer monitoring in supporting system reliability and enabling effective troubleshooting within the electricity grid.

2026-2027 GRA OP-12 Attachment 1 Page 388 of 684 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Vast majority of transmission system is steel or concrete Over half of the distribution system is underground Adding +100 miles per year of underg...

AI summary The document discusses the composition and expansion of Nova Scotia's transmission and distribution systems, highlighting the majority steel and concrete transmission infrastructure, over half underground distribution, plans to add over 100 miles of underground distribution annually, and a goal to reduce average customer outages to under 30 minutes by 2030.

Improving Reliability at Nova Scotia Power • Best all-in reliability year in 30 years 3 . Power was on 99.9% of the time, outperforming the Atlantic Canadian average 4

AI summary Nova Scotia Power achieved its best all-in reliability in 30 years, with power on 99.9% of the time, surpassing the Atlantic Canadian average. This performance is highlighted in the document with accompanying images.

Other Nova Scotia Developments The Province has appointed the board of directors of the Nova Scotia Independent System Operator ("NSIESO"). NSPI continues to work constructively with the Province to support the phase in of the NSIESO and f...

AI summary The Province has appointed the board of directors of the Nova Scotia Independent System Operator (NSIESO), with NSPI working to support its full operations by 2026. NSPI also announced an agreement to construct a reliability intertie between Nova Scotia and New Brunswick, with regulatory approval expected by Q4 2025. The Province granted NSPI flexibility to reprofile its sulfur dioxide (SO2) emissions from 2025 to 2034.

OUR STRATEGIC PRIORITIES Always leading with Health & Safety Advancing Cleaner Energy towards our Net-Zero Vision Enhancing Reliability Driving Innovation Empowering our Teams & Communities Always Working to Minimize Cost Impacts for Custo...

AI summary The document outlines the strategic priorities of the organization, emphasizing health and safety, cleaner energy, net-zero vision, reliability, innovation, and minimizing cost impacts for customers. It highlights readiness for change and includes visual elements.

on Grid Reliability and Modernization - Transmission and distribution projects at Tampa Electric and Nova Scotia Power - Generation reliability projects at Tampa Electric and Nova Scotia Power - Gas infrastructure investment at Peoples Gas...

AI summary The text references grid reliability and modernization initiatives, including transmission and distribution projects at Tampa Electric and Nova Scotia Power, generation reliability projects, and gas infrastructure investments at Peoples Gas. It also includes a figure of $3.6B and references to images.

Investments in T&D drive strong reliability performance • Nova Scotia Power's reliability performance is 2nd best for duration frequency of outages among all its comparable Atlantic Canadian and Maine Utilities 1 Including investment requi...

AI summary Nova Scotia Power's reliability performance ranks second best in terms of outage duration and frequency among comparable Atlantic Canadian and Maine utilities, though this includes investments required due to Hurricane Fiona.

Fellow shareholders, Utilities remain at the forefront of significant cross-industry transformation, driven by economic, demographic, environmental and technological trends. As a result, we're seeing significant growth in demand for energy...

AI summary The document highlights the transformative challenges facing utilities due to economic, demographic, environmental, and technological trends. Utilities are investing in resilient, flexible, and cost-efficient systems while addressing customer expectations for reliability, resiliency, and affordability, and meeting clean energy mandates.

SUSTAINABILITY MATERIALITY ASSESSMENT Emera is committed to transparency, accountability, understanding stakeholder expectations and improving disclosures on the material sustainability priorities that matter most to stakeholders. Those su...

AI summary Emera conducts a sustainability materiality assessment to identify key sustainability priorities, categorized as strategic, core, and evolving. These priorities are reviewed annually with the SMC and SRC to ensure alignment with stakeholder interests and business impact. A full update is conducted every three years.

OUR COMMITMENT TO SAFETY Safety is Emera's number one priority. Our most important goal is the elimination of serious injuries and fatalities (SIFs) across the Company. The number of High Energy serious injuries (HSIF) in 2024 was consiste...

AI summary Emera prioritizes safety, aiming to eliminate serious injuries and fatalities. In 2024, the number of high-energy serious injuries remained consistent with prior years. Safety training, new public safety standards, and leadership engagement were emphasized to improve safety outcomes and create psychologically safe workplaces.

SAFETY, ENVIRONMENT AND PEOPLE - 30% TARGET WEIGHTING SAFETY (10% TARGET WEIGHTING) Threshold Measures Target Measures Stretch Measures 90% of Emera Inc. employees develop and share Personal Safety Plans, which will include one action rela...

AI summary The document outlines safety, environment, and people performance targets for Emera Inc., including measures such as developing Personal Safety Plans, reducing injury rates, and improving psychological safety among employees.

SAFETY, PEOPLE, CUSTOMER, ASSET MANAGEMENT - 65% TARGET WEIGHTING SAFETY (20% TARGET WEIGHTING) Measures Included: Highlights - Proactive Incident Rate ("PAIR") > 250 and > 90% of the Operational Performance Coaches All threshold and targe...

AI summary The document outlines safety performance metrics and achievements, including the Proactive Incident Rate, OSHA Lost Time Injury Rate, and reductions in energized primary wire downs. All threshold and target measures were achieved, resulting in a 20.26% payout for safety performance.

Measures Included: Highlights - Completion of the CCS/H2 business model evaluation work. - Annual cybersecurity training completion rate of ≥95%. Achieve an average monthly Cyber Security phish rate of <4.5% following the removal of the be...

AI summary The text outlines key performance measures achieved, including cybersecurity training rates, budget management, system efficiency improvements, and revenue generation. All threshold and target measures were achieved, while stretch measures were only partially met. A 15% payout is noted for the asset management result.

10.15% 10.39% 8.56% 16.89% 11.46% 8.69% 9.94% 13.00% 11.95% 9.56% 5.54% 34.37% 10.67% https://myemera.sharepoint.com/sites/NSP-RA-RC/20262027 GRA Files/2026-2027 GRA SR-01 Att 14 Exhibit 4 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026-2...

AI summary The summary provides an overview of hydro facilities, including installed capacity, gross plant cost, and net book value for Annapolis, Wreck Cove, Wind, Other, and Total hydro facilities. This data is presented in a table format.

N.S. to explore nuclear technology with Ontario AARON BESWICK Premier Tim Houston announced anagreementtoworkwithOntario to explore small modular reactor technology. But don't expect nuclear power to be generated in Nova Scotia in the fore...

AI summary Nova Scotia and Ontario have signed a memorandum of understanding to explore small modular reactor technology, though no immediate nuclear power generation is planned. The agreement focuses on knowledge exchange and federal lobbying, not financial commitments. Premier Tim Houston emphasized learning from Ontario's experience, while noting Nova Scotia's reliance on renewables like wind and solar. Ontario's Darlington reactor project, set to be completed by 2035, highlights potential long-term opportunities.

2025 Load Forecast Report Redacted 1 Figure 43: Historical and Forecast Annual Residential Sales 58 2 Figure 44: Annual Consumption by Building Type 59 3 Figure 45: Building Characteristics and Structural Index 60 4 Figure 46: Residential...

AI summary The document is a redacted 2025 Load Forecast Report containing figures related to historical and forecast annual sales, building characteristics, demand response, peak contributions, and energy sensitivity. It includes data on residential, commercial, and industrial consumption, as well as peak load forecasts and variance analysis.

5 Figure 2: Historical and Predicted Annual System Peak 6 7 - 8 Figure 3 below shows the changes to system load and system peak over the historic and forecast - 9 periods.

AI summary Figure 2 presents historical and predicted annual system peak data, while Figure 3 illustrates changes in system load and system peak over historical and forecast periods.

2025 Load Forecast Report Redacted - 1 energy under the Wholesale Market Backup/Top-Up (BUTU) Tariff in cases where their third- - 2 party supply is unavailable or interrupted. Their load is assumed to be served by a third party after - 3...

AI summary The 2025 Load Forecast Report includes the full peak demand of municipal electric utilities taking third-party supply, as NS Power is required to provide backup capacity and must plan for long-term service to these customers.

1 8.0 SYSTEM LOSSES AND UNBILLED SALES 2 - 3 The difference between energy generated for use within provincial borders and the total NS Power - 4 billed sales comprises transmission and distribution system losses as well as changes to the...

AI summary This section discusses system losses and unbilled sales, noting that system losses averaged 6.6% of NSR over the past five years and are expected to remain between 6.0% and 7.0% over the next decade. Unbilled sales refer to energy generated and sold but not yet billed.

1 Figure 62: Historical and Forecast System Peak (no DR) - 2 3 - 4 As indicated in Figure 63 , the firm peak (system peak less interruptible and DR) is expected to - 5 increase by 1.1 percent annually. 6

AI summary Figure 62 shows historical and forecast system peak without demand response. The firm peak, calculated as system peak less interruptible and DR, is expected to increase by 1.1 percent annually, as indicated in Figure 63.

10 10.1 Analysis of 2024 Actual Peak 11 12 The 2024 system peak occurred at hour ending 8am on Wednesday, February 21, with a 12-hour 13 lagging average temperature of -10.8°C and a daily average windspeed of 7.4 km/h. The recorded 14 peak...

AI summary The 2024 system peak occurred on February 21 at 8am, with a recorded peak of 2,088 MW and a firm peak of 2,001 MW. The peak was influenced by a 12-hour lagging average temperature of -10.8°C and a daily average windspeed of 7.4 km/h. Figure 66 compares the actual system peak to the forecast for 2024.

1 Figure 74: System Energy Sensitivity 2 3 Similarly, a P10/P90 scenario was created for peak demand using a random sampling of weather 4 and economic drivers. The width of the P10/P90 envelope is approximately 256 – 306 MW, 5 reflecting t...

AI summary The text discusses the creation of a P10/P90 scenario for peak demand based on random sampling of weather and economic factors, with a wide variation range of 256 – 306 MW. It also references Figure 75, which includes the latest adjustments to the peak end-use model.

9 Figure 75: System Peak Sensitivity 10 DATE: June 27, 2025 Page 93 of 94

AI summary This section presents Figure 75, titled 'System Peak Sensitivity,' which is part of a regulatory proceeding document from June 27, 2025. The figure is referenced on page 93 of 94 of the document.

Table A2: Coincident Peak Demand - 2025 NS Power Forecast Peak Forecast Year Interruptible Contribution to Peak Demand Response (reduction in Firm Contribution to Peak Net System Peak Growth Temp at Peak 12hr Lag Temp Notes (MW) Firm Peak...

AI summary Table A2 presents the forecasted coincident peak demand for NS Power from 2015 to 2035, including contributions from interruptible and firm demand, net system peak, growth rates, and temperature data. The forecast shows increasing trends in peak demand and temperature, with notes on specific dates and conditions for each year.

Residential SAE Model Fit

AI summary The document discusses the Residential SAE Model Fit, referencing a figure that likely illustrates the model's performance or accuracy in evaluating residential energy usage or system analysis.

REDACTED 1 MW in 2026 and then to MW in 2027 which will result in a reduced reliance on solid 2 fuel generation in those years. 3 4 (b) The SO2 emissions CoV will also result in lower generation from natural gas as solid fuel 5 is forecast...

AI summary The document discusses projected energy generation and emissions trends from 2024 to 2027, noting reduced reliance on solid fuel and natural gas due to increased renewable energy. It also highlights lower GHG compliance costs in 2026 and 2027, and mentions modeling of surplus energy and bilateral energy purchases.

redit quality because it impaired its regulator's ability to act independently to protect the utility's credit quality, undermining the regulatory construct and the utility's cash flow predictability. While government officials opposed the...

AI summary The document discusses the credit risk profile of Nova Scotia Power Inc. (NSPI), noting its strong business risk profile despite challenges such as regulatory changes, physical risks from events like Hurricane Fiona, and reliance on coal-based generation. The NSUARB's independent regulatory process is viewed as supportive, reducing political intervention risks.

2. Unfavourable generation mix As a result of the current generation mix, NSPI is dependent on international suppliers for its fuel supply, exposing the Company to volatile global pricing. This exposure, combined with continued investment...

AI summary NSPI's reliance on international fuel suppliers and higher electricity rates due to its current generation mix pose challenges in passing on costs to ratepayers. While the Muskrat Falls Hydroelectric Project will reduce coal-based generation, coal plants will remain in the mix until 2030, requiring significant investments for replacement.

Notes: - What does the company have planned for grid-scale batteries? - o With the IRP and looking at renewables, to maintain great stability…batteries have been apart of their plans going back for years - o Wind resources - Wind is a prim...

AI summary Nova Scotia Power is planning to install grid-scale lithium-ion phosphate batteries as part of their Integrated Resource Plan (IRP), focusing on grid stability, black start capability, and renewable integration. The batteries will be located near substations in Halifax, Bridgewater, and White Rock, with some having specific functions like black start. The company is also evaluating battery degradation, warranty terms, and potential salvage value.

Trenton: - 6 units. Unit 1-4 small units Out of service and retired in place. - Unit 5 150 MW; Fuel Coal; In-Service 1969 - Unit 5 Expected retirement ~April 2027. - Unit 6 160MW In-service 1991. Fuel Coal. - o Water coming out of Trenton...

AI summary The Trenton power plant has six units, with Units 1-4 retired. Units 5 and 6, both coal-fired, are expected to retire in 2027 and 2029, respectively. Unit 5 has been in service since 1969, and Unit 6 since 1991. Water discharge from the plant is too warm, negatively affecting marine life.

KEY FINDINGS Based on the common themes observed, the following are the key guiding principles to inform the Action Plan and Roadmap Items: - Variable renewable capacity additions are required to meet the 2030 targets. Up to 1500MW of addi...

AI summary Key findings emphasize the need for 1500MW of additional wind capacity and 200MW of solar capacity by 2030. Battery storage, firm capacity, and synchronous condensers are critical for system reliability. The Atlantic Loop project is highlighted as beneficial for reducing costs and emissions, requiring government support. NS Power has updated its 2020 IRP Action Plan and Roadmap based on 2023 modeling.

Integration Assets - The reliability [ti](#page-12-3)e1 is required in all scenarios to support the integration of variable renewable generation (wind and solar) and to serve as the first leg of the Atlantic Loop (the latter in the with At...

AI summary The document discusses the need for reliability infrastructure to support variable renewable generation integration and the Atlantic Loop. It outlines the Reliability Tie, synchronous condensers, and future capacity additions by 2030, 2035, and 2050.

GENERATION MIX The evergreen IRP modeling results demonstrate that annual generation profiles are increasingly decarbonized through the planning horizon in line with environmental policy changes in 2030 and 2035 (please refer toFigure 4)....

AI summary The evergreen IRP modeling shows an increasing decarbonization of the generation mix through 2030 and 2035, with coal being phased out and replaced by wind and battery storage. Wind generation is a key contributor across all scenarios, with curtailment rates ranging from 10% to 45%. Gas resources are used primarily in peaking capacity, with higher utilization in No Atlantic Loop scenarios. Emissions are reduced by over 90% from 2005 levels in all scenarios.

ITEM 1: REGIONAL INTEGRATION STRATEGY Develop a Regional Integration Strategy to provide access to firm capacity and low-carbon energy while increasing the reliability of Nova Scotia's interconnection with North America. With virtually no...

AI summary This item outlines the need for a Regional Integration Strategy to enhance access to firm capacity and low-carbon energy, improve system reliability, and support wind integration in Nova Scotia. It emphasizes the importance of interconnection with North America, especially given the lack of new hydro power potential and the phase-out of coal generation.

Item 3g: Synchronous Condensers Complete generator site-specific system impact studies for new variable renewable generation to assess the need for synchronous condenser support. Progress the development of 100 - 200MVA of synchronous cond...

AI summary The document discusses the need for synchronous condensers to support system reliability and strength as variable renewable generation increases. It calls for site-specific system impact studies and the development of 100 - 200MVA of synchronous condensers by 2030.

- 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: 16 • Annual Capital Expenditure (ACE) Plan – NS Power's...

AI summary The text outlines several regulatory submissions by NS Power, including the Annual Capital Expenditure (ACE) Plan, Ten-Year System Outlook (10YSO), and Integrated Resource Plan (IRP), all submitted to the Nova Scotia Utility and Review Board (NSUARB). These documents detail capital investments, reliability planning, and system forecasts.

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.

5.1.1 Other Regulations Along with common technical, safety, and environmental regulations, NS Power is bound by requirements associated with, but not limited to: - Nova Scotia Power Incorporated Performance Standards Regulations, - Nova S...

AI summary NS Power must comply with various technical, safety, and environmental regulations, including performance standards, renewable electricity regulations, air quality regulations, and reliability standards set by NERC and NPCC. These regulations impact system design, operation, communication, reserve capacity, and security requirements.

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.

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 SAMP is shaped by strategic initiatives like the IRP and 10YSO, with a focus on transitioning to cleaner energy and integrating renewables. Challenges include aging infrastructure, environmental constraints, and emerging technologies like AI and SmartGrid. The future of Nova Scotia's electricity system is marked by change and opportunity.

10-Year System Outlook (10YSO) NS Power's Ten-Year System Outlook (10YSO) assesses system generation capacity, considering load forecasts, planned generation additions, and environmental regulations, while adhering to the Nova Scotia Whole...

AI summary NS Power's 10-Year System Outlook (10YSO) evaluates system generation capacity, load forecasts, and environmental regulations, and is submitted to the NSUARB. It is an annual assessment of system capacity and resource adequacy, not an integrated resource plan, and involves stakeholder engagement.

Performance Standards The Performance Standards are a key part of NS Power's accountability to its customers. In accordance with the requirements for Performance Standards under sections 52A to 52F of the Public Utilities Act , NS Power ha...

AI summary Performance Standards are a key accountability measure for NS Power under the Public Utilities Act. NS Power has been submitting annual reports to the NSUARB since 2017, covering reliability, storm response, and customer service, with additional reports following major weather-related outages.

North American Reliability Council (NERC) The vision for the North American Reliability Council (NERC) is a highly reliable and secure North American bulk power system. In Nova Scotia, NERC standards and associated requirements are reviewe...

AI summary The North American Reliability Council (NERC) aims to ensure a reliable and secure bulk power system in North America. In Nova Scotia, NERC standards are reviewed and approved for enforcement by the Nova Scotia Utility and Review Board (NSUARB). NERC standards cover multiple areas, and reporting is done to the Northeast Power Coordinating Council (NPCC), which also issues regional standards and conducts audits of NS Power every three years.

Weather Risk A Material Adverse Effect may arise from weather seasonal variations impacting energy consumption, as well as severe weather events, changing air temperatures, wildfires and other severe weather conditions that are expected to...

AI summary The text discusses the risks posed by weather variations and severe weather events to Nova Scotia Power Inc. (NSPI), including impacts on energy consumption, infrastructure damage, service outages, and potential financial losses. These risks are exacerbated by climate change and may lead to a Material Adverse Effect if not mitigated through insurance or regulatory processes.

Transition Risk: As government policy and the economy transition toward decarbonization, the Company is exposed to risks arising from policy, legal, technology, and market changes, which could result in a Material Adverse Effect. The energ...

AI summary Nova Scotia Power Inc. faces transition risks due to decarbonization policies and climate change, which could lead to increased capital investment needs, regulatory challenges, and difficulties in insuring carbon-emitting assets. These risks may impact service reliability, reputation, and access to capital, potentially resulting in a Material Adverse Effect.

Supply Chain Risk NSPI's ability to meet customer energy requirements, respond to storm-related disruptions and invest in capital in a cost-effective and timely manner are dependent on maintaining an efficient supply chain. Domestic and gl...

AI summary NSPI's operations are vulnerable to supply chain risks, including delays, cost increases, and shortages due to domestic and global issues, inflation, labor shortages, and regulatory changes. These risks could impact the company's ability to meet customer needs and invest in capital projects.

System Operating and Maintenance Risks The safe and reliable operation of electric generation transmission and distribution systems is critical to NSPI's operations. There are a variety of hazards and operational risks inherent in operatin...

AI summary The document outlines the various operational and maintenance risks faced by NSPI in managing its electric generation, transmission, and distribution systems. These risks include mechanical failures, natural disasters, cyberattacks, and supply chain disruptions, which could negatively impact customer confidence, public safety, and result in Material Adverse Effects. The regulatory framework allows for the recovery of prudently incurred costs.

The Path to 2030 - 2024 Update 1 TABLE OF CONTENTS 2 3 1.0 EXECUTIVE SUMMARY 5 4 2.0 INTRODUCTION 9 5 3.0 2030 DECARBONIZATION GOALS 11 6 3.1 80 Percent Renewable Electricity Sales 11 7 3.2 Coal Phase Out 12 8 3.3 Proposed Clean Electricit...

AI summary This document outlines Nova Scotia's 2030 Clean Power Plan, including goals for renewable energy, coal phase-out, and resource development. It details various projects such as wind and solar resources, battery storage, and reliability tie initiatives.

- 9 determined by the NSIESO 1 These resource additions form a comprehensive strategy that allows for flexibility to accommodate 2 future uncertainties. Through the ongoing Evergreen IRP Action Plan & Roadmap items, NS 3 Power is closely m...

AI summary The document outlines NS Power's 2024 Path to 2030 report, which includes the 2030 Decarbonization Goals, the Province of Nova Scotia's 2030 Clean Power Plan, the creation of the NSIESO, and the Resource Development Plan elements necessary to achieve these goals. It also includes the IRP Action Plan and Roadmap Items supporting the 2030 Decarbonization Goals.

DATE FILED: December 9, 2024 Page 31 of 54 1 Developed a procurement approach for the synchronous condenser equipment. 2 Initiated substation design activities to accommodate the synchronous condensers. 3 4 This project has been included i...

AI summary The document outlines progress on two key projects: the procurement of synchronous condensers and the development of the Reliability Tie transmission line. Both projects are part of broader efforts to enhance grid reliability and integrate renewable energy, aligning with the 2030 Clean Power Plan.

- 4 The dates provided above will continue to be evaluated as the timing of new resources, forecast - 5 for demand growth, and policy factors continue to change in the future. Updates will continue to - 6 be provided in the annual 10-Year...

AI summary The text discusses ongoing evaluation of dates related to resource planning and demand growth, with updates to be provided in the annual 10-Year System Outlook report. It also mentions retaining existing thermal units in cold reserve to support new capacity additions and maintain system reliability.

1 Figure 8 – Project Accountabilities Matrix 2030 Projects Accountability NS Power Key Action Items NS Government Key Action Items Partner Key Action Items Resources through IPP based on compliance renewable detailed system with NS project...

AI summary The document outlines project accountabilities for 2030 initiatives, focusing on resource procurement, load management, and reliability tie projects. Key stakeholders include Nova Scotia Power, the NS Government, and partners such as E1 and NB Power, with specific action items and responsibilities identified.

- 6 3. Human Resources 2.7 - 7 2024 Trend: No change - The electricity industry continues to face a shortage of talent due to high demand in both the electricity industry and adjacent industries, such as housing and other construction. Thi...

AI summary The document discusses ongoing talent shortages in the electricity industry, project approvals under the 2030 Clean Power Plan, and increasing risks in transition planning due to rising electricity demand and shifting supply costs. These factors are creating cost pressures, staffing challenges, and delays in project timelines.

6. Evolving Policy Landscape - 2024 Trend: Reduced Risk - As the development of the Clean Electricity Regulations progressed in 2024, clarity on what the final regulation will look like improved, and on September 16, 2024, the Federal Gove...

AI summary In 2024, the Clean Electricity Regulations (CER) achieved a common understanding between the Federal Government and Nova Scotia, providing flexibility for system growth and decarbonization while ensuring reliability. Policy changes, including NERC and NPCC criteria, electrification policies, and others, will influence system planning through 2030. NS Power will adjust its IRP Roadmap accordingly.

Request IR-6: Please provide NS Power's reliability indices for 2019 to 2024 inclusive, including: - (a) System Average Interruption Duration Index (SAIDI). - (b) System Average Interruption Frequency Index (SAIFI). - (c) Customer Average...

AI summary The request asks NS Power to provide reliability indices from 2019 to 2024, including SAIDI, SAIFI, CAIDI, and CAIFI, along with comparisons to other Atlantic Provinces and Canada. The response is pending.

(a) NS Power's All-In SAIDI by Year is found below: Year 2019 2020 2021 2022 2023 2024 SAIDI 43.88 6.57 5.60 74.87 23.03 6.34 (b) NS Power's All-In SAIFI by Year is found below: Year 2019 2020 2021 2022 2023 2024 SAIFI 4.52 2.71 2.56 5.82...

AI summary The document presents NS Power's All-In SAIDI, SAIFI, and CAIDI metrics by year from 2019 to 2024, highlighting significant variations in system performance over time.

1 (d) NS Power's All-In CAIFI by Year is found below: 2 Year 2019 2020 2021 2022 2023 2024 CAIFI 4.52 2.70 2.61 5.56 5.03 3.23 3

AI summary The table presents NS Power's All-In CAIFI (Customer Average Interruption Frequency Index) by year from 2019 to 2024, showing fluctuations in the frequency of power interruptions over time.

9 SAIDI 2019 2020 2021 2022 2023 2024 NS Power 43.88 6.57 5.60 74.87 23.03 6.34 Atlantic Canada 26.37 7.21 6.03 47.69 18.44 6.91 Region 2 10.74 6.70 7.01 17.08 12.59 7.82 All-Canada 8.38 5.35 5.57 14.32 9.95 6.25 SAIFI 2019 2020 2021 2022...

AI summary The document presents SAIDI, SAIFI, and CAIDI metrics for NS Power and other regions from 2019 to 2024 and includes a request for NS Power to explain how reliability and affordability have been balanced in its 2026-2027 GRA application, referencing specific plans and exhibits.

repeatable reliability metric for benchmarking. 1 Request IR-13: 2 3 Reference: Exhibit N-3 GRA Direct Evidence, Section 1.4 Reliability and System Strength. 4 5 Please provide all data supporting NS Power's statement that it surpassed the...

AI summary NS Power claims that its 2024 power availability rate of 99.93% outperforms the Canadian average of 99.89%, based on data from Electricity Canada. The calculation method involves dividing the duration of power on for the average customer by the total number of hours in the year, which resulted in a 99.93% availability rate for NS Power in 2024.

NON-CONFIDENTIAL 1 (e) Starting in 2021, the Climate Adaptation Leadership Program (CALP) was originally 13 cost of system improvements and combinations thereof? (rather than just 14 incorporating the increased risk into the risk assessmen...

AI summary The Climate Adaptation Leadership Program (CALP) was initiated in 2021, and the text raises questions about whether climate impacts have been incorporated into risk assessments and cost modeling. NS Power's response outlines a Five-Year Reliability Plan (2025–2029) with significant investments aimed at improving grid reliability and resilience.

Five-Year Reliability Plan 2025-2029 Nova Scotia Power December 20, 2024

AI summary The document outlines Nova Scotia Power's Five-Year Reliability Plan for 2025-2029, focusing on ensuring grid reliability and addressing future energy needs.

1 1.0 INTRODUCTION 2 3 NS Power's top priority is delivering safe, affordable, and reliable electricity every day to power 4 customers' homes, businesses, and communities. The Company is committed to improving the 5 reliability and resilie...

AI summary NS Power outlines its Five-Year Reliability Plan, which includes $1.3 billion in investments aimed at improving the reliability and resiliency of the power grid through storm hardening, equipment upgrades, and grid modernization. The plan responds to the NSEB's directive following the 2023 Annual Performance Standards decision (M11624), and includes specific actions and timing to improve service and track progress.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 5 of 40 - 1 A synopsis of what is causing the reliability challenges, - 2 A detailed plan with targeted reliability investments to mitigate...

AI summary NS Power outlines a Five-Year Reliability Plan for 2025-2029, allocating $1.3 billion to enhance grid reliability and resilience against weather events. This represents a 12% increase in investment compared to the previous five-year period (2019-2023).

6 13 15 17 20 18 The reliability and resilience investments included in this Plan are aimed at achieving the following 19 two overarching goals: DATE FILED: December 20, 2024 Page 5 of 40

AI summary The document outlines reliability and resilience investments aimed at achieving two overarching goals, as part of a plan filed on December 20, 2024.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 6 of 40 1 1) Improve the customer reliability experience by reducing SAIDI by 20 percent from 2 the current five-year average of 5.10 and ac...

AI summary The Five-Year Reliability Plan aims to improve customer reliability by reducing SAIDI by 20% from the current five-year average of 5.10 to 4.10 by 2029. It also focuses on enhancing grid resilience against climate change impacts, referencing past storms like Hurricane Dorian, Fiona, and Lee. NS Power acknowledges the Board's direction on evaluating the Value of Lost Load (VoLL) for investment decisions.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 8 of 40 1 disruptive events but could help to reduce damage and could also facilitate the recovery from a disrupted state to normal operatio...

AI summary The text discusses the importance of balancing reliability and resiliency investments with rate impacts, emphasizing the need for open dialogue between NS Power, customers, and government to align system performance and costs. It references prior regulatory decisions related to the 2022 and 2024 ACE Plans.

1 2.0 HISTORICAL SYSTEM-WIDE RELIABILITY PERFORMANCE 2 12 16 3 Over the past five years, the causes of power outages and how they contributed to the customer 4 hours of interruption (CHI) are shown in Figure 2 . While there is year-over-ye...

AI summary Over the past five years, 50% of power outages were caused by trees contacting power lines, especially during adverse weather. This is the leading cause of customer interruption hours (CHI), and addressing it through the Plan is critical to reducing SAIDI and SAIFI over the next five years.

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 3.0 RELIABILITY PROGRAMS 2 3 Nova Scotia Power's Five-Year Reliability Plan includes three key reliability programs that 4 address tree contacts and adverse weather (the primary causes of outages as outlined in the 5 previous section), a...

AI summary Nova Scotia Power's Five-Year Reliability Plan includes three key programs: Storm Hardening - Vegetation Management, Storm Hardening - Targeted Equipment Replacements and Upgrades, and Advanced Grid Modernization. These programs aim to reduce outages caused by tree contacts, adverse weather, and aging infrastructure, while improving system reliability and integrating renewable energy.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 11 of 40 - 1 performance is one of the variables that determines the overall reliability risk and guides where - 2 investments need to be pr...

AI summary The Five-Year Reliability Plan for 2025-2029 outlines performance as a key variable for determining reliability risk and guiding investment priorities. As of the filing date, specific feeders are identified as priority areas for investment in 2025.

4 3.1 Estimated Improvements in Reliability 5 - 6 NS Power estimates that the programs included in this Plan will deliver an improvement in - 7 Performance Standards SAIDI of approximately 20 percent and achievement of the SAIDI metric - 8...

AI summary NS Power estimates that the programs included in the Plan will deliver a 20% improvement in SAIDI by 2029, reducing outage duration by one hour annually. These investments will enhance the distribution system's functionality and support new load.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 14 of 40 - 1 by approximately 16 percent and will be below the current performance standard target of 2.05 by - 2 2029. Every mitigating mea...

AI summary The text discusses the relationship between SAIDI and SAIFI metrics, noting a strong correlation of 79% over the past 20 years. It highlights that improvements in reliability, such as automated reclosers, reduce both outage frequency and duration. Performance targets for SAIDI are expected to be below 2.05 by 2029.

4.0 STORM HARDENING – VEGETATION MANAGEMENT 2025-2029 Forecast Investment: $265.0 million Estimated Performance Standards SAIDI Reduction: 0.70 to 1.25 hours 6 The Storm Hardening - Vegetation Management Program is designed to proactively...

AI summary The Storm Hardening - Vegetation Management Program aims to reduce tree contact with power lines, which is the primary cause of outages. The program involves widening distribution and transmission corridors, establishing new rights-of-way, and trimming/removing trees near power lines to improve system reliability and reduce power interruptions.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 20 of 40 1 Right-of-way widening in these areas will continue to improve the transmission system's ability 2 to withstand significant weathe...

AI summary The document discusses NS Power's plan to widen and establish new rights-of-way (ROW) to improve the transmission system's resilience against weather events. The 2025-2029 forecast investment for this program is $86 million, targeting distribution feeders where traditional vegetation management has limited effectiveness.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 22 of 40 - 1 imagery data is being integrated into the work planning and prioritization process for 2025, and - 2 NS Power's current plan is...

AI summary The document outlines NS Power's plan to integrate imagery data into work planning for 2025 and to trim and remove trees on approximately 3,200 spans (177 km) of existing power lines in 2025 as part of the Five-Year Reliability Plan for 2025-2029.

1 5.0 STORM HARDENING – TARGETED EQUIPMENT REPLACEMENTS AND 2 UPGRADES 3 4 2024-2029 Forecast Investment: $916 million 5 Forecasted Performance Standards SAIDI Reduction: 0.13 to 0.24 hours 6 7 NS Power's Storm Hardening - Targeted Equipme...

AI summary NS Power's Storm Hardening Program aims to improve the reliability and resilience of the power system through targeted equipment replacements and upgrades, with a forecast investment of $916 million from 2024 to 2029. The program focuses on distribution, transmission, and substation upgrades to reduce unplanned outages and adapt to worsening weather conditions.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 26 of 40 1 54 poles and 10.8 kilometers of primary and neutral conductor, enhancing capacity and 2 reliability in this rapidly expanding are...

AI summary NS Power is implementing infrastructure upgrades, including new poles, conductor installations, and substation feeders, to enhance capacity and reliability in growing areas. Updates to overhead distribution design standards and coastal framing standards are being introduced to improve resilience against severe weather conditions.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 30 of 40 1 reliability by enabling the ability to isolate faults to a specific area, reducing outage impacts and 2 enabling faster restorati...

AI summary The document outlines infrastructure investments to enhance grid reliability, including the purchase of a spare substation transformer and the construction of new substations in several locations across the province. These investments aim to improve system capacity, support increased demand, and strengthen grid resilience.

1 6.0 ADVANCED GRID MODERNIZATION PROGRAMS 2 - 3 2025-2029 Forecast Investment: $78 million - 4 Forecasted Performance Standards SAIDI Reduction: 0.06 to 0.11 hours 5 - 6 In addition to the grid modernization that is becoming inherent in s...

AI summary NS Power plans to invest $78 million from 2025 to 2029 in advanced grid modernization programs, aiming to reduce SAIDI by 0.06 to 0.11 hours. The initiative includes real-time monitoring, automation, and enhanced control over DERs to improve outage detection, recovery times, and grid stability.

1 7.0 CONCLUSION 2 3 This Plan demonstrates NS Power's commitment to delivering reliable and resilient electrical 4 service to customers. By investing in infrastructure hardening, grid modernization, vegetation 5 management, and leveraging...

AI summary NS Power's Plan emphasizes its commitment to enhancing grid reliability and resilience through infrastructure improvements and technology. The Plan acknowledges external factors that may affect its implementation and outlines a commitment to update the Plan in future ACE Plans as directed by the Board in M11692.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 37 of 40 - 1 NS Power is committed to proactively communicating progress on reliability improvements and - 2 any adjustments to our strategi...

AI summary NS Power is committed to transparent communication about reliability improvements and exploring partnerships for resilience investments, including undergrounding. The company hopes the Five-Year Reliability Plan and related regulatory process will engage stakeholders on grid reliability, resilience to climate change, and balancing performance with costs.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 39 of 40 1 Performance Standards SAIDI: Calculated in a similar manner to SAIDI, but excluding EEDs, 2 7 MEDs and planned outages as detaile...

AI summary The text defines key terms related to grid reliability and performance standards, including SAIDI, SAIFI, reliability, and resilience. It references a Board order (M10279) approving performance standards compliance for 2022-2026.

Five-Year Reliability Plan – 2025-2029 NON-CONFIDENTIAL 2026-2027 GRA NSEB IR-20 Attachment 1 Page 40 of 40 - 1 Significant Event Day (SED): A day when the daily cumulative hours of interruption exceed the - 2 Significant Event Threshold....

AI summary The document defines a Significant Event Day (SED) as a day when the daily cumulative hours of interruption exceed the Significant Event Threshold, calculated annually using the 2.0 beta method.

4 (a) Please find a version of Figure 3 from the 2024 Load Forecast, modified to reflect the 5 updated forecast used for the 2026-2027 GRA, below: Year NSR (GWh) Growth (%) System Peak (MW) Growth (%) 2014 11,037 -1.4 2,118 4.2 2015 11,099...

AI summary The text presents a modified version of Figure 3 from the 2024 Load Forecast, updated to reflect the 5 updated forecast used for the 2026-2027 GRA. It includes tables with data on Net System Requirement (NSR) and System Peak (MW) from 2014 to 2034, showing growth percentages for each year.

System Reliability - The higher cost low-sulphur coal blends have stretched the design parameters of the solid fuel fleet in 2023 and 2024. The fleet is designed to operate on medium sulphur coal, and moving to maximum low sulphur coal has...

AI summary The use of low-sulphur coal blends has strained the solid fuel fleet, leading to opacity issues and reduced capacity, increasing reliance on natural gas, diesel, and imported energy. This has created reliability and cost challenges, with minor supply shortages or demand increases potentially jeopardizing compliance plans and increasing expenses.

Section 4 of the Community Solar Program Regulations provides "A subscriber must not be charged any additional fees by NSPI or a project owner to participate in the community solar program," and Section 5 provides "A subscriber is billed b...

AI summary The text discusses the Community Solar Program Regulations, ensuring no additional fees for participation and billing credits for solar energy generated. It also addresses proposed changes to the Fuel Adjustment Mechanism (FAM) Plan of Administration, including moving certain costs to the FAM in conjunction with a Grid Reliability Assessment (GRA).

Note 3- Increase is due to system growth and increase in customer-requested work. The 2024 1 2 3 Compliance forecast expected lower staffing levels due to the closure of two generating units at the time of the 2023-2024 GRA. 4 5 Note 4- Pl...

AI summary The increase in staffing levels is attributed to system growth, customer-requested work, and increased regulatory requirements. Notes also mention the closure of generating units, retention of thermal units for system capacity, aging wind assets, and reorganization of NS Power's departmental structure.

22 (b) Please see the table below: ($ million) 2020 2021 2022 2023 2024 2020-2024 Average 2 elevate fuel and chemistry costs—particularly during start-up phases. 3 4 Therefore, although total operating hours may decline, the intensity and...

AI summary The text discusses NS Power's operating expenses related to storm restoration from 2020 to 2024, highlighting a decrease in expenses in 2021 and 2024. It requests an explanation for these decreases and asks for updated storm data. NS Power is implementing improved grid resilience measures, such as higher-strength insulators and installation techniques, to address wind-related stress.

Social There were no social factors that had a relevant or significant effect on the credit analysis. As a regulated utility, NSPI provides an essential service to its customers. Any disruptions in its operations could result in reputation...

AI summary The document states that there were no significant social factors affecting the credit analysis of NSPI. NSPI provides essential services and has met its outage targets for Q3 2024. The company is committed to employee and customer safety.

2026 2027 (Percent) (Percent) S&P Credit Metrics GRA Forecast 12.3 12.8 S&P Credit Metrics without Securitization 10.7 11.2 DBRS Credit Metrics GRA Forecast 12.1 12.7 DBRS Credit Metrics without Securitization 10.7 11.1 1 Request IR-123: 2...

AI summary The document discusses significant developments affecting Nova Scotia Power (NS Power) since the 2023-2024 GRA, including the approval of a Fuel Adjustment Mechanism (FAM) Rider, a Supplemental Assessment, changes in the Bank of Canada's overnight rate, the creation of the Nova Scotia Independent Energy System Operator (NSIESO), and NS Power's intention to securitize about $704 million of thermal assets by the end of 2025. It also requests confirmation of the impact of these factors on NS Power's risk profile.

1 66 of its Report, the design of NSPI's FAM, including the bi-annual audit and the 2 associated regulatory lag, translate into elevated risk on this factor relative to its 3 Canadian and U.S. peers. These transactions do not alter this co...

AI summary The document discusses the impact of the Bank of Canada's interest rate changes and the Energy Reform (2024) Act on NSPI's operational and financial risks. It highlights that while short-term interest rates have decreased, long-term rates have increased, affecting NSPI's cost of capital. The creation of the Nova Scotia Independent Energy System Operator (NSIESO) under the Energy Reform Act introduces regulatory and operational changes, increasing uncertainty for investors.

- 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 overhead lines, including retirement due to load growth and federal mandates, replacement practices during highway widening and storm damage, inspection programs based on outage performance, increased heat stress on conductors, and material usage such as aluminum and steel conductors. Corrosion issues and the lifespan of switches, insulators, and other equipment are also addressed.

KEY FINDINGS Based on the common themes observed, the following are the key guiding principles to inform the Action Plan and Roadmap Items: - Variable renewable capacity additions are required to meet the 2030 targets. Up to 1500MW of addi...

AI summary The key findings emphasize the need for significant renewable energy additions, including 1500MW of wind and 200MW of solar by 2030, along with firm capacity and battery storage. The Reliability Tie and Atlantic Loop are highlighted as critical for system reliability and cost reduction. Synchronous condensers and SMRs are also identified as important future resources.

Integration Assets - The reliability [ti](#page-113-3)e1 is required in all scenarios to support the integration of variable renewable generation (wind and solar) and to serve as the first leg of the Atlantic Loop (the latter in the with A...

AI summary The document discusses the need for reliability infrastructure, including the Reliability Tie and synchronous condensers, to support the integration of variable renewable energy sources like wind and solar. These assets are crucial for maintaining grid stability, especially in scenarios involving the Atlantic Loop and by 2030.

GENERATION MIX The evergreen IRP modeling results demonstrate that annual generation profiles are increasingly decarbonized through the planning horizon in line with environmental policy changes in 2030 and 2035 (please refer toFigure 4)....

AI summary The document discusses the generation mix in Nova Scotia as modeled by the evergreen IRP, highlighting the increasing use of wind and battery storage, the phasing out of coal, and the impact of curtailment and emissions across different scenarios. Wind generation is significant, with curtailment ranging from 10–45%, and gas resources are used in peaking capacity. Emissions are reduced by over 90% from 2005 levels in all scenarios.

ITEM 1: REGIONAL INTEGRATION STRATEGY Develop a Regional Integration Strategy to provide access to firm capacity and low-carbon energy while increasing the reliability of Nova Scotia's interconnection with North America. With virtually no...

AI summary The document proposes a Regional Integration Strategy to enhance access to firm capacity and low-carbon energy, improve system reliability, and support wind integration in Nova Scotia. It emphasizes the need for a reliability tie independent of the Atlantic Loop due to limited hydro potential and the phase-out of coal.

Item 1b: Regional Integration Continue working with neighboring jurisdictions in support of the Atlantic Loop and other opportunities for regional integration, conducting detailed engineering and economic studies for firm import options re...

AI summary The document emphasizes the need to continue regional integration efforts, particularly with the Atlantic Loop, by conducting detailed engineering and economic studies for new transmission investments and interconnections. These studies should evaluate supply security, emission intensity, and dispatch flexibility.

Item 3c: Fast Acting Generating Capacity Initiate development of new fast-acting generating capacity resourcesto address growing demand, balance variable renewable generation, and maintain the reliability of the Nova Scotia system. Scope w...

AI summary The document outlines the initiative to develop new fast-acting generating capacity in Nova Scotia, aiming to address rising demand and support renewable energy integration. The plan includes adding 300MW by 2027 and 300-600MW by 2030, with consideration for low/zero carbon fuels like hydrogen, while maintaining existing combustion turbines.

Item 3g: Synchronous Condensers Complete generator site-specific system impact studies for new variable renewable generation to assess the need for synchronous condenser support. Progress the development of 100 - 200MVA of synchronous cond...

AI summary The document outlines the need to conduct system impact studies for new variable renewable generation and to develop 100 - 200MVA of synchronous condensers by 2030 to support system reliability and strength as variable renewable generation increases.

CONCLUSION The evergreen IRP Action Plan and Roadmap will play a key role in enabling NS Power to meet the challenges and opportunities of the ever-evolving electricity planning environment. This plan serves to enable the path to 2030 whil...

AI summary The evergreen Integrated Resource Plan (IRP) Action Plan and Roadmap are critical for NS Power to achieve its 2030 decarbonization targets and long-term sustainability goals. The plan provides flexibility to adapt to changes in the electricity planning environment, including advancements in renewable technology and evolving climate policies. NS Power will provide annual updates to stakeholders and continue collaborating with partners to support the energy transition.

- 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: 16 • Annual Capital Expenditure (ACE) Plan – NS Power's...

AI summary The text outlines several regulatory submissions required by Nova Scotia Power, including the Annual Capital Expenditure (ACE) Plan, Ten-Year System Outlook (10YSO), and Integrated Resource Plan (IRP), all submitted to the Nova Scotia Utility and Review Board (NSUARB). These documents provide details on capital investments, system reliability, and long-term planning.

2 Purpose This SAMP describes NS Power's Asset Management objectives and their alignment with corporate objectives, how value from assets is derived and contributes to the achievement of objectives, the approach NS Power takes to decision-...

AI summary NS Power's Asset Management approach is aligned with corporate objectives and guided by principles such as integration, technology enablement, continuous improvement, and flexibility. These principles support the integration of new technologies and sustainable practices, ensuring compliance and effectiveness in asset management.

2.1 Asset Management Overview NS Power employs Asset Management as a discipline to consistently and diligently understand the requirements of its assets to achieve organizational objectives and the risks to achieving those objectives, whil...

AI summary NS Power employs Asset Management to understand and manage its core assets, including generation and delivery infrastructure, to meet organizational goals and manage risks. The approach is influenced by factors such as the integration of renewables, climate change, and technological advancements. NS Power has received several awards for its Asset Management practices.

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 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.

3.2.2 The Energy Delivery Reliability Team The Energy Delivery Reliability Team included within the Energy Delivery function in Figure 5 is a relatively new organization, focused on the execution of and communication of Reliability initiat...

AI summary The Energy Delivery Reliability Team, a new organization within the Energy Delivery function, focuses on executing and communicating reliability initiatives across the transmission and distribution grid. The team collaborates with EAM and Customer groups to address service challenges and improve performance, and implements projects such as using satellite imagery for vegetation management.

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 Balanced Scorecard, which tracks performance metrics like DAFOR, CAIDI, and SAIDI, as well as strategic initiatives from climate adaptation and integrated resource plans.

5.1.1 Other Regulations Along with common technical, safety, and environmental regulations, NS Power is bound by requirements associated with, but not limited to: - Nova Scotia Power Incorporated Performance Standards Regulations, - Nova S...

AI summary NS Power must comply with various regulations, including performance standards, renewable electricity, air quality, and activities designation regulations, as well as reliability standards from NERC and NPCC. These regulations affect system design, operation, communication, reserve capacity, and security requirements.

Mapping of ISO 55000 to NSP Asset Management System Elements IAM 6-Box Conceptual AM Model NSPI Reference Associated Processes / Systems 7.7 Knowledge Asset Information, Risk & Review Playbook, SOPs CMS, Reliability Team Process, QPs Secti...

AI summary The document maps ISO 55000 to NSP's Asset Management System, detailing alignment between international standards and internal processes such as the Integrated Resource Plan (IRP), Asset Management Plans (AMPs), and the Competency Management System (CMS). It outlines how NSP integrates ISO 55000 requirements into its operational and strategic planning frameworks.

10-Year System Outlook (10YSO) NS Power's Ten-Year System Outlook (10YSO) assesses system generation capacity, considering load forecasts, planned generation additions, and environmental regulations, while adhering to the Nova Scotia Whole...

AI summary NS Power's Ten-Year System Outlook (10YSO) evaluates the system's generation capacity, taking into account load forecasts, planned generation additions, and environmental regulations. It is submitted to the NSUARB and involves stakeholder engagement processes.

North American Reliability Council (NERC) The vision for the North American Reliability Council (NERC) is a highly reliable and secure North American bulk power system. In Nova Scotia, NERC standards and associated requirements are reviewe...

AI summary The North American Reliability Council (NERC) sets reliability standards for the bulk power system, which are enforced in Nova Scotia by the NSUARB. NERC standards cover areas like resource balancing, emergency operations, and infrastructure protection. Reporting is done to the NPCC, which also issues regional standards and conducts audits of NS Power every three years.

- A further increase of $0.8 million from 2026F to 2027F is the result of increased labour costs due to the addition of a planning engineer, and salary escalations ($0.6 million), and increased internet communications due to continued roll...

AI summary The document outlines increased operating costs for Energy Delivery Services, primarily due to salary escalations, the addition of a planning engineer, and the rollout of satellite internet to address inconsistent cellular coverage. Additionally, the creation of the Reliability Implementation department has led to a significant increase in labour costs, aimed at improving system reliability and customer engagement.

onsequences. Customers are not given time to absorb one increase before the next one arrives. The result is ongoing uncertainty, repeated rate shock, and an erosion of trust in the electricity system. Throughout 2025, Nova Scotians have de...

AI summary The document highlights ongoing issues with Nova Scotia Power, including frequent rate increases, cybersecurity breaches, billing inaccuracies, and service reliability problems. Customers face financial shocks and distrust due to these issues, while coal reliance continues despite regulatory requirements to phase it out.

onsequences. Customers are not given time to absorb one increase before the next one arrives. The result is ongoing uncertainty, repeated rate shock, and an erosion of trust in the electricity system. Throughout 2025, Nova Scotians have de...

AI summary The document highlights concerns about Nova Scotia Power's repeated rate increases, cybersecurity breach, billing inaccuracies, and unreliable service leading to frequent outages. It also notes continued reliance on coal despite a legislated phase-out, resulting in high and volatile costs for customers.

January 5, 2026 Crystal Henwood Clerk of the Board Nova Scotia Energy Board 1601 Lower Water Street, 3rd Floor Halifax, NS B3J 3S3 Re: M12451 2026-2027 General Rate Application (GRA) - Opening Statement Dear Ms. Henwood: Please see attache...

AI summary Nova Scotia Power's opening statement for the 2026-2027 General Rate Application outlines their commitment to providing reliable electricity service, managing costs, and addressing climate goals while acknowledging the challenges posed by inflation and affordability issues.

[OUTAGE](https://www.nspower.ca/outages) CENTRE [WAYS](https://www.nspower.ca/ways-to-pay) TO PAY START, STOP, MOVE [SERVICE](https://www.nspower.ca/your-home/create-manage-account/start-stop-move) [CUSTOMER](https://www.nspower.ca/custome...

AI summary Nova Scotia Power has reached a settlement with customer representatives regarding an upcoming General Rate Application (GRA). The GRA includes rate increases for 2026 and 2027, supported by reliability investments. The settlement includes the continuation of a 9% Return on Equity target and a 40% maximum equity thickness. The NSEB will evaluate the GRA and determine future rates.

impact over 150,000 city residents. Ganim Corresp., Oct. 21, 2024. The mayor stated many residents are spending over 50% of their income on housing security and an additional 9% rate increase would be burdensome. Id. Lastly, Mayor Ganim re...

AI summary Public comments on a rate increase application highlight concerns over financial burden on low-income residents and calls for transparency, while supporters emphasize the need for grid reliability investments and community benefits. The mayor and UI customers oppose the increase, whereas businesses support it for infrastructure and reliability.

century nature of the opportunity, and that the project will prepare UI to serve that community in the coming years. See Tr., May 6, 2024, 1123:4–1126:3. The Authority finds this testimony persuasive. Given the exceedingly rare opportunity...

AI summary The Authority allows the inclusion of the Barnum Avenue Bridge Replacement Project in the rate base due to its unique opportunity to avoid future costs and improve system resiliency. The decision is based on the Company's credible testimony that the project is a rare, once-in-a-century opportunity. The Company must provide regular updates on the project's status until it is used for electricity supply.

2. Compliance with the Reliability Framework UI's Reliability Plan complies with the Reliability Framework requirements established by the Authority on August 31, 2022. See Decision, Aug. 31, 2022, Docket No. 17-12-03RE08, PURA Investigati...

AI summary UI's Reliability Plan complies with the Reliability Framework established by the Authority in 2022, which aims to maintain top-quartile reliability performance while minimizing ratepayer impact. The plan must include a 5% reliability improvement target if the proposed investment exceeds affordability thresholds based on historical spending adjusted for inflation.

4. Compliance with Climate Change and Vulnerability Study UI's Climate Change and Vulnerability Study (CCVS) complies with the Authority's requirements. See 17-12-03RE08 Decision, p. 80. The Climate Change and Vulnerability Study is requir...

AI summary UI's Climate Change and Vulnerability Study (CCVS) complies with the Authority's requirements, including identifying vulnerabilities, proposing solutions like substation flood mitigation, and setting long-term goals for climate risks such as extreme heat and flooding. This is supported by the 17-12-03RE08 Decision and referenced in Ex. UI-CIP-11.

resilience and Equitable Modern Grid modernization efforts, such as costs associated with the Energy Storage Solutions program, Light-Duty Electric Vehicle Charging program, etc. Ex. UI-CIP-1, p. 33. The Company states that it will continu...

AI summary The Company highlights the importance of continued investment in grid modernization and resilience initiatives, such as energy storage and electric vehicle charging programs. It warns that reduced investment, if its application is not fully approved, could degrade system reliability and create costly infrastructure backlogs in the future.

Selected experience - Served as Consulting Expert on behalf of the Public Utilities Commission of Texas in assessing a proposed acquisition of Texas New Mexico Power by Blackstone, Inc. - Led efforts as Procurement Monitor on behalf of the...

AI summary The text outlines the professional experience of an individual who has worked as a consulting expert and auditor in various regulatory and energy-related proceedings across North America, including assessments of utility acquisitions, procurement monitoring, and market design analysis.

Selected other work Client Issue Date International Arbitration (various) Damages 2021–2024 Nebraska Public Service Commission Advisor 2020, 2025 Ontario Power Generation Construction Cost Estimation 2020–2021 Nova Scotia Utility and Revie...

AI summary This section presents a list of various legal and regulatory engagements involving different clients and issues across multiple jurisdictions, including arbitration, utility regulation, and financial assessments, spanning from 2000 to 2025.

This capital item was included in the 2025 ACE Plan for Subsequent Approval as a project with an estimated cost of $1,08 3,801. NS Power indicated that the increase of $173,326 was primarily attributed to the project scope being undefined...

AI summary The document discusses the refurbishment and continued use of LIN2, a thermal power plant, as part of the 2025 ACE Plan. NS Power explains that LIN2 is necessary for winter capacity and system reliability, and its retirement date has been extended to 2027 due to delays in procuring replacement generation. Refurbishment costs have increased due to the need for inspections and necessary work.

ects like it treated projects on other generating units where projects with different scopes of work on different assets are separated, including for Trenton 5 which has a similar retirement forecast. The Board considers LIN2 to present a...

AI summary The Board acknowledges the unique circumstances surrounding the LIN2 generating unit, noting its planned retirement and the need for cold reserve capacity due to forced outages and project schedules. It directs NS Power to submit LIN2 capital improvement projects as a Winter Capacity Requirement application until further notice.

The following definitions were taken or adapted from those in the IPCC glossary. Climate change adaptation: A process by which a community seeks to protect itself against the effects of anthropogenic climate change and to respond positivel...

AI summary The text defines key terms related to climate change and adaptation, including climate change, decarbonization, greenhouse gases, climate models, and resilience. These definitions are adapted from the IPCC glossary and provide a foundation for understanding climate change and its impacts.

Climate change adaptation governance Hydro-Québec's interest in climate change adaptation is nothing new. It was sparked by a series of extreme weather events that shocked the province, namely the 1996 Saguenay flood and the 1998 ice storm...

AI summary Hydro-Québec's interest in climate change adaptation was triggered by extreme weather events like the 1996 Saguenay flood and the 1998 ice storm. It co-founded Ouranos in 2001 and established a governance structure in 2019 to address climate risks across its operations and ensure effective decision-making.

Increase in wildfires and precipitation - Changes in water management practices due to changes in peak flow regimes - Damage to infrastructure - Reduced transmission capacity

AI summary The document discusses the impact of increased wildfires and precipitation, including changes in water management practices, damage to infrastructure, and reduced transmission capacity.

ARCTIC QUÉBEC Rising temperatures and permafrost degradation - Damage to roads and infrastructure - Northward migration of the treeline - Impact on off-grid systems (e.g., subsidence caused by thawing permafrost could force the shutdown of...

AI summary Rising temperatures in Arctic Quebec are causing permafrost degradation, leading to damage to roads and infrastructure, northward migration of the treeline, and impacts on off-grid systems, such as subsidence forcing the shutdown of a thermal power plant.

Actions - The actions listed in this table demonstrate Hydro-Québec's intent to address climate change in more concrete terms. Numerous actions have already been undertaken since many of the impacts of climate change were known at the star...

AI summary Hydro-Québec aims to address climate change impacts on its power systems by implementing measures to enhance reliability and reduce outage risks. Actions include setting up line patrols, promoting redundancy, and adding protective devices on transmission lines. Climate projections are being considered in system design, though challenges such as increased workload and high costs are anticipated.

Limit the impact of extreme weather events on the reliability of the overhead system (cont'd) Action Implementation Progress Other action areas affected Experiment with burying certain sections of the distribution system using a new approa...

AI summary The document outlines various actions to mitigate the impact of extreme weather on the overhead system, including pilot projects, research collaborations, and emergency response plan revisions. These initiatives aim to improve grid reliability and service quality through innovative approaches and climate change adaptation.

1. Adjust design standards and activities ( cont'd ) Action Implementation Progress Other action areas affected Initiate migration from a deterministic hydrological model to a stochastic hydrological model, to obtain a range of probable va...

AI summary The text outlines actions to adjust design standards and activities in response to climate change, including migrating to stochastic hydrological models, establishing a reference framework for hydroclimatic criteria, and collaborating on research projects to assess climate change impacts on infrastructure. These actions aim to improve planning and maintenance in light of extreme weather events.

FURTHER INFORMATION - Hydro-Québec is subject to the Dam Safety Act . As such, it is required to ensure the safety of people and property while operating its facilities. - Control and discharge structures have a useful service life of 70 t...

AI summary The text discusses Hydro-Québec's compliance with the Dam Safety Act, emphasizing the need to adapt infrastructure design and operation to account for long-term climate projections, while noting that existing structures are already built to withstand extreme weather events with a significant safety margin.

2. Maintain appropriate discharge capacity (cont'd) Action Implementation Progress Other action areas affected Conduct climate change resilience assessments of targeted facilities (generally during refurbishment work) In progress Indicator...

AI summary The document outlines actions to maintain appropriate discharge capacity in light of climate change, including resilience assessments, standardizing climate projections, and establishing hydroclimatic criteria. Research collaborations with academic institutions are also highlighted to examine the impact of climate change on infrastructure.

POTENTIAL ADAPTATION MEASURES - Increase the frequency of vegetation inspections and control work. - Adapt vegetation control cycles based on changing weather patterns and the impact of forest pests on vegetation. - Revise clearance standa...

AI summary The text outlines potential adaptation measures to manage vegetation in power line corridors, including increased inspections, revised clearance standards, use of AI for growth prediction, and assessing Hydro-Québec's pest management strategies.

12. Adapt vegetation control to the increased growth of certain species ( cont'd ) Action Implementation Progress Other action areas affected Increase budgets and resources to carry out the integrated vegetation control program In progress...

AI summary The document discusses actions related to adapting vegetation control strategies to address the increased growth of certain tree species, including budget increases, scaling up felling programs, and participating in research projects. These measures aim to reduce power outages and improve service continuity.

DESCRIPTION Climate change leads to more contact with customers due to power outages and equipment failure caused by bad weather. It also increases the amount of on-site work and requests for visits from energy efficiency and power quality...

AI summary Climate change is increasing customer interactions due to power outages and equipment failures from extreme weather. It also leads to more on-site work and requests for energy efficiency and power quality services. Hydro-Québec anticipates more engagement with businesses aiming to decarbonize and achieve carbon neutrality.

POTENTIAL ADAPTATION MEASURES - Install remote control systems where possible. - Install cameras and sensors at telecommunications sites to measure the quantity of freezing rain and observe the structures and their surroundings in real tim...

AI summary The document outlines potential adaptation measures to enhance infrastructure resilience against climate-related risks, such as freezing rain and forest fires. These include installing remote control systems, cameras, and sensors, as well as improving road and infrastructure design.

DESCRIPTION Increases in the frequency and intensity of some extreme weather events will result in more major and minor power outages on the overhead transmission and distribution systems. Furthermore, the long lifespan of certain assets m...

AI summary The document highlights that increasing extreme weather events will lead to more power outages due to vulnerabilities in the overhead transmission and distribution systems, particularly exacerbated by the long lifespan of certain assets.

FURTHER INFORMATION - In an effort to reduce the number and duration of power outages, Hydro-Québec has implemented action plans for its transmission and distribution systems. - The overhead system currently experiences an average of 10 to...

AI summary Hydro-Québec has implemented action plans to reduce power outages, with the overhead system experiencing an average of 10 to 12 days of major events annually.

18. Limit the impact of extreme weather events on the reliability of the overhead system (cont'd) Action Implementation Progress Other action areas affected Experiment with burying certain sections of the distribution system using a new ap...

AI summary The document outlines actions to reduce the impact of extreme weather on the reliability of the overhead distribution system. These include burying sections of the distribution system, outsourcing tasks during extreme weather, researching climate change impacts, improving service quality, assessing battery energy storage, revising emergency response plans, and continuing research on icephobic coatings.

18. Limit the impact of extreme weather events on the reliability of the overhead system ( cont'd ) Action Implementation Progress Other action areas affected Focus efforts on strengthening certain lines using anti-cascading towers in prio...

AI summary The document outlines actions to strengthen the reliability of the overhead system in the face of extreme weather events. These include using anti-cascading towers in priority areas and revising the emergency stockpile supply strategy to improve repair times and service restoration.

POTENTIAL ADAPTATION MEASURES - Institute flood prevention measures such as building protective structures, naturalizing shorelines, practising beach nourishment, relocating generating stations to higher ground, adding valves and drains, l...

AI summary The text outlines potential adaptation measures to address climate change impacts, including flood prevention, emergency plan adjustments, infrastructure upgrades, and building design modifications to withstand extreme weather and thawing permafrost.

19. Increase the resilience of off-grid systems (cont'd) Action Implementation Progress Other action areas affected Analyze the risks for each generating station in Nunavik based on maps of natural hazards (e.g., avalanches, erosion and su...

AI summary The text outlines actions aimed at increasing the resilience of off-grid systems, including analyzing risks for generating stations in Nunavik, assessing climate change resilience for new facilities, and evaluating ice buildup losses for wind farms. These actions are part of a broader effort to enhance infrastructure reliability.

Action Implementation Progress Other action areas affected Conduct climate change resilience assessments of targeted facilities (generally during refurbishment work) In progress Indicator: Number of facilities assessed for resilience 2, 3,...

AI summary The document outlines actions related to climate change resilience assessments and the standardization of hydrological and climate projections. It also mentions protecting assets and activities in areas exposed to forest fire risk.

FOR FEBRUARY 2026 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTE...

AI summary The document presents a summary of energy data for February 2026, including metrics such as MWH sales, energy losses, demand factors, and system peak demand. It includes subtotals and totals for various categories, such as shore power, generation replacement, and real-time pricing.

FOR APRIL 2026 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTEM C...

AI summary The document presents a table with energy sales, losses, and demand metrics for April 2026, including total MWH sales, energy line losses, energy requirement, and system demand factors. The data reflects key operational performance indicators for the electricity system.

FOR OCTOBER 2026 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTEM...

AI summary This document presents a table with energy data for October 2026, including metrics such as MWH sales, energy losses, demand factors, and system peak demand. It provides aggregated values for different categories, including sub-totals and totals before and after exports.

FOR DECEMBER 2026 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTE...

AI summary The document presents a table with various metrics related to energy sales, losses, demand, and factors for different customer classes in December 2026. It includes data on energy sales, energy losses, energy requirements, demand, and system factors for domestic, industrial, and other customer categories.

FOR MAY 2027 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTEM COI...

AI summary The document presents a table with various energy metrics for May 2027, including energy sales, losses, demand factors, and other related figures. The data includes subtotals, shore power, generation replacement, and other specific categories. The table provides an overview of system performance and energy requirements.

FOR JULY 2027 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTEM CO...

AI summary The document presents a table with various energy metrics for July 2027, including energy sales, losses, demand factors, and other related figures. It provides a detailed breakdown of energy usage across different customer classes and includes subtotals and totals for various categories.

FOR AUGUST 2027 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTEM...

AI summary The document presents a table with energy sales, losses, and demand data for different customer classes in August 2027. It includes metrics such as energy requirement, system coincidence factor, and demand line losses, with a total of 782,190 MWH sold and 6.0% energy losses. The table also includes subtotals and totals for various categories, including shore power and real-time pricing.

FOR DECEMBER 2027 (1) MWH SALES (2) ENERGY LINE LOSSES (3) ENERGY REQUIREMENT (4) CLASS NON- COINCIDENT DMD. (KW) (5) SYSTEM COINCIDENT FACTOR (6) SYSTEM COINCIDENT DMD. (KW) (7) DEMAND LINE LOSSES (8) SYSTEM COIN. PEAK DMD. (KW) (9) SYSTE...

AI summary The table presents energy sales, losses, and demand metrics for December 2027, including total MWH sales, energy line losses, energy requirement, and system demand factors. It provides a detailed breakdown of energy performance and system load characteristics.

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 customer responsibilities for metering, service provisions, and load management to maintain power supply integrity. Customers may need to contribute to capital costs for primary metering or own transformers. Load must not negatively impact system reliability or stability.

GENERAL TIME OF USE TARIFF Page 4 of 4 (4) In assessing issues which might unduly affect the integrity of the power supply system the following would be considered: reliability, harmonic voltage and current levels, voltage flicker, unbalan...

AI summary The document outlines factors considered in assessing issues that might affect the integrity of the power supply system, including reliability, harmonic voltage and current levels, voltage flicker, unbalance, rate of change in load levels, stability, and fault levels.

SCHEDULE 3: REGULATION AND FREQUENCY RESPONSE SERVICE Regulation and Frequency Response Service is necessary to provide for the continuous balancing of resources (generation and interchange) with load and for maintaining scheduled Intercon...

AI summary Regulation and Frequency Response Service is essential for maintaining the balance between generation and load, ensuring the interconnection frequency remains at 60 Hz. The Transmission Provider is responsible for offering this service, and the Transmission Customer must either purchase it or make alternative arrangements. Monthly charges are outlined, with costs passed through if an Operating Area operator provides the service.

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 eight minutes of notification by the Transmission Provider to ac...

AI summary Suppliers providing operating reserves must supply between 100 and 110 percent of the stated MW amount within eight minutes of notification and sustain it for 50 minutes. Failure to meet these obligations incurs a penalty equivalent to one month's charge for the deficient reserves.

Activation of Reserves When a contingency occurs, the Transmission Provider will activate, at its sole discretion, sufficient reserves from (i) those under contract with the Transmission Provider, (ii) those provided by Transmission Custom...

AI summary The document outlines the process for activating reserves during a contingency, specifying that the Transmission Provider will use reserves from various sources to minimize costs and restore system conditions. Operating Reserve service is available for three hours following a contingency, with the Transmission Customer responsible for addressing supply deficiencies.

SCHEDULE 6: OPERATING RESERVE – SUPPLEMENTAL RESERVE SERVICE Supplemental Reserve Service (also referred to as Contingency Reserve – Supplemental) is needed to serve load in the event of a system contingency; however, it is not available i...

AI summary Schedule 6 outlines the requirements for Supplemental Reserve Service, which is used to serve load during system contingencies. The service can be provided by on-line but unloaded generating units, quick-start generation, or interruptible load. The Transmission Provider must offer this service, and the Transmission Customer must either purchase it or make alternative arrangements.

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 eight minutes of notification by the Transmission Provider to ac...

AI summary Suppliers providing operating reserves must supply between 100 and 110 percent of the stated MW amount within eight minutes of notification and sustain it for 50 minutes. Failure to meet these obligations incurs a penalty equivalent to one month's charge for the deficient reserves.

Activation of Reserves When a contingency occurs, the Transmission Provider will activate, at its sole discretion, sufficient reserves from (i) those under contract with the Transmission Provider, (ii) those provided by Transmission Custom...

AI summary The document outlines the activation of reserves by the Transmission Provider during contingencies, specifying sources of reserves and the responsibility of Transmission Customers to address supply deficiencies. Reserves are activated to minimize costs and restore system conditions, with service quality being firm for three hours post-contingency.

SCHEDULE 9: REAL POWER LOSS FACTORS For Point-to-Point service, the Transmission Provider will seasonally calculate loss factors to be used on a path-by-path basis. For each season, winter and summer, the power flow models used to calculat...

AI summary This document outlines the methodology for calculating real power loss factors for both Point-to-Point and Network Service by the Transmission Provider, including seasonal calculations, annual reviews, and the application of locational loss factors. It also details the rate for Network Integration Transmission Service and the formula for transmission congestion charges.

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 eight minutes of notification by the Transmission Provider to ac...

AI summary Suppliers providing operating reserves must supply between 100 and 110 percent of the stated MW amount within eight minutes of notification and sustain it for 50 minutes. Failure to meet these obligations incurs a penalty equivalent to one month's charge for the deficient reserves.

Activation of Reserves When a contingency occurs, the Transmission Provider will activate, at its sole discretion, sufficient reserves from (i) those under contract with the Transmission Provider, (ii) those provided by Transmission Custom...

AI summary The document outlines the activation of reserves by the Transmission Provider during contingencies, emphasizing the use of contracted resources, customer-provided reserves, and third-party contracts. The activation aims to minimize costs and restore system conditions promptly, with specific service availability and responsibility guidelines for Transmission Customers.

SCHEDULE 6: OPERATING RESERVE – SUPPLEMENTAL RESERVE SERVICE Supplemental Reserve Service (also referred to as Contingency Reserve – Supplemental) is needed to serve load in the event of a system contingency; however, it is not available i...

AI summary Schedule 6 outlines the requirements for Supplemental Reserve Service, which is used to serve load during system contingencies. The service can be provided by on-line but unloaded generating units, quick-start generation, or interruptible load. The Transmission Provider must offer this service, and the Transmission Customer must either purchase it or make alternative arrangements.

7 Oct, Nov 1.35 1.64 1.35 1.20 0.99 1.15 0.96 0.91 0.00 1.33 INSERT TABLE FOR STANDBY SERVICE TARIFF Classes Jan, Feb, Dec Mar, Apr May, June Jul, Aug, Sep Oct, Nov Domestic 1.00 1.34 2.15 2.29 1.64 Small General 1.00 1.23 1.63 1.59 1.35 G...

AI summary The document includes a table with standby service tariff rates for different customer classes across various months, followed by a redacted section related to a 2026-2027 GRA Compliance Filing and an exhibit summarizing system energy line losses for Nova Scotia Power Inc. for the year ending December 31, 2027.

REDACTED 2026-2027 GRA Compliance Filing - SR-01 Attachment 5 Page 1 of 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

AI summary The document is a compliance filing related to Grid Reliability and Availability (GRA) for the 2026-2027 period, specifically Attachment 5 of SR-01. It includes a table with multiple columns but no substantive content provided in the text.

Peak of ATL 2,356,954 Annual Energy Requirement of ATL 11,303,785,142 System Coincident Load Factor 54.748044%

AI summary The document provides data on the peak load and annual energy requirement of the Atlantic Transmission Line (ATL), along with the system coincident load factor, which is a key metric for assessing grid efficiency and demand patterns.

REDACTED 2026-2027 GRA Compliance Filing - SR-01 Attachment 6 Page 9 of 13 Annual Peak of ATL 2,347,983 Annual Energy Requirement of ATL 10,656,168,727 System Coincident Load Factor 51.81%

AI summary The document provides data on the Annual Peak Load and Annual Energy Requirement for the Atlantic Load (ATL), along with the System Coincident Load Factor, which is 51.81%. These metrics are used to assess system performance and energy demand.

a Scotia (Public Utilities Board) v Nova Scotia Power Corporation , (1976) 18 NSR (2d) 692 (the Contracts Case ) is often referenced for its consideration of the scheme of regulation under the PUA : - 17 The scheme of regulation establishe...

AI summary The text discusses Nova Scotia's regulatory framework under the Public Utilities Act (PUA), emphasizing the Board's authority to ensure utilities provide adequate service and charge just, reasonable rates. Key provisions include Section 42(1), which permits the Board to determine a utility's annual return based on a rate base, and Section 48, requiring utilities to provide safe, adequate service. The PUA mandates non-discriminatory pricing and service efficiency.

, respond to customer inquiries on billing and usage, and support the design and evaluation of customer programs. However, there is also a proposed increase for customer engagement and communications: The incremental labour for Customer Ex...

AI summary The document outlines a proposed increase in customer engagement initiatives, including digital solutions and training programs, to enhance customer experience. NS Power states it will not use CSAT as a reliability metric, focusing instead on performance standards and outage reduction. Exhibits N-27, NSEB IR-69, and NSEB IR-12 are referenced.

ty engagement with its present staffing complement, having conducted 65 community meetings recently across the province. The Board finds that adding more staff on these initiatives would be redundant. [98] Secondly, and more importantly, d...

AI summary The Board rejects NS Power's request for additional staffing for customer engagement, citing lack of formal customer satisfaction metrics and reliance on performance standards. NS Power failed to justify increased costs for digital programs and did not conduct a cost-benefit analysis for engagement initiatives.

er these costs will occur, the company believes the proposed approach to remove them from revenue requirement is a measured and responsible approach that helps to ensure rates are just and reasonable. [161] Per NS Power's 2025 10-Year Syst...

AI summary The Nova Scotia Utility and Review Board (NSUARB) agrees with Nova Scotia Power (NS Power) to exclude Wreck Cove hydro system decommissioning costs from depreciation rates, citing its indefinite maintenance and critical role in grid reliability. This decision aligns with NS Power's 2025 10-Year System Outlook Report (Matter M12386), which highlights Wreck Cove's contribution to peak capacity and renewable integration.

3.6.1 Capital Additions [365] NS Power's capital outlook for 2026-2027 for additions to Plant reflects the company's best estimate of capital investment over the test years at a point in time. The test period investment is intended to supp...

AI summary NS Power outlines its 2026-2027 capital investment plans to ensure safe electricity delivery, environmental compliance, and alignment with Renewable Electricity Standards. The proposed investments support the 5-Year Reliability Plan and growing customer demand. Rate base growth will depend on DDA securitization proceeds, with potential offsets if securitization fails.

is own personal judgement rather than current market data. It said other inputs and assumptions were not reasonable given the context of current and prospective economic and capital market conditions. [508] In its closing submissions, the...

AI summary The NDP Caucus advocates for a lower ROE for Nova Scotia Power based on Dr. Cleary's evidence. The Department of Energy argues against higher ROE due to NS Power's poor reliability, citing rural outages. NS Power did not rebut Dr. Cleary's findings, which show NS Power exceeded allowed ROE in 8 of 12 years since 2012.

ngly. The Board cannot, however, make rate decisions based solely on reliability issues or current public opinion of the Utility. There are appropriate sanctions a regulator can impose should a Utility be found to have an inadequate or unr...

AI summary The Board cannot base rate decisions solely on reliability issues or public opinion. Sanctions for inadequate systems typically involve increased expenditures rather than cost reductions. Regulatory actions in a utility context rarely include rate increase moratoriums. [2005 NSUARB 27]

Classification of Generation Costs by System Load Factor NS Power's current approach to the classification of generation-related fixed costs such as depreciation and financing costs is to first classify environmental and fuel conversion-re...

AI summary NS Power proposes to revise its method for classifying generation costs, moving from a hybrid approach that allocated some capital costs to energy and others to demand toward a system-wide load factor classification for all generation assets, including peaking, wind, and remaining generation resources.

this is kind of a middle route. I've acknowledged it's an approximation and that it will be superior to have Nova Scotia Power's analysis when available. [Transcript, January 13, 2026, pp. 1311-1312] [621] In response to Undertaking U-6, N...

AI summary NS Power analyzed a 1.5 kW/customer peak load carrying capability adjustment, shifting ~$7M in distribution costs from residential to other rate classes. The adjustment reduces proposed rate increases for domestic classes but increases them for general service classes. The Board noted an exhibit error, correcting 'Large General' to 'Small Industrial'.

o. Transmission Customers can purchase each of the Ancillary Services from the Transmission Provider, or they can self-supply the capacity-based ancillary services or purchase them from a third party. [661] The capacity-based ancillary ser...

AI summary The document outlines capacity-based ancillary services, including Regulation, Frequency Response, and Operating Reserves, with specific requirements set by NPCC. NS Power must maintain 32 MW spinning reserve and 136 MW supplemental reserve. LIIR interruptible load, while unsuitable for day-ahead planning, provides real-time value. The 2026-2027 settlement agreement reduces 10-minute supplemental reserve by 35 MW using 50% of LIIR's estimated demand.

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 The document outlines special conditions for metering and service provisions. It specifies that primary metering requires a capital contribution from the customer, and adjustments to meter readings are made when metering is on the high voltage side. Additional conditions relate to non-standard service provisions, load integrity, and factors affecting power supply system integrity.

GENERAL TIME OF USE TARIFF Page 4 of 4 (4) In assessing issues which might unduly affect the integrity of the power supply system the following would be considered: reliability, harmonic voltage and current levels, voltage flicker, unbalan...

AI summary The text outlines considerations for assessing issues that may impact the integrity of the power supply system, including reliability, harmonic voltage and current levels, voltage flicker, unbalance, rate of change in load levels, stability, and fault levels.

SCHEDULE 3: REGULATION AND FREQUENCY RESPONSE SERVICE Regulation and Frequency Response Service is necessary to provide for the continuous balancing of resources (generation and interchange) with load and for maintaining scheduled Intercon...

AI summary This section outlines the necessity and structure of Regulation and Frequency Response Service for maintaining grid balance and frequency at 60 Hz. The Transmission Provider is responsible for offering this service, and the Transmission Customer must either purchase it or arrange alternatives. Monthly charges are outlined, with costs passed through if an Operating Area operator provides the service.

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 eight minutes of notification by the Transmission Provider to ac...

AI summary Suppliers providing Operating Reserve must supply between 100 and 110 percent of the stated MW amount within eight minutes of notification and sustain it for 50 minutes. Failure to meet these obligations incurs a penalty equal to one month's charge for the deficient reserves.

Activation of Reserves When a contingency occurs, the Transmission Provider will activate, at its sole discretion, sufficient reserves from (i) those under contract with the Transmission Provider, (ii) those provided by Transmission Custom...

AI summary The document outlines the process for activating reserves during a contingency by the Transmission Provider, emphasizing cost minimization and system restoration. Operating Reserve service is available for three hours post-contingency, with the Transmission Customer responsible for addressing any supply deficiencies within that period.

PRELIMINARY ISSUES LIST The following issues will be dealt with in the public hearing on Nova Scotia Power Incorporated's (NS Power) 2026-2027 General Rate Application (Matter M12451) which is set to begin Wednesday, January 7, 2026: - 1....

AI summary The preliminary issues list outlines key topics for the public hearing on NS Power's 2026-2027 General Rate Application. These include fuel and purchased power costs, capital structure, rate design, depreciation studies, cybersecurity impacts, and climate change adaptation. The proceeding will address regulatory compliance, cost recovery, and the impact of various operational and financial factors on rate-setting.

Issue Reliability plan

AI summary The issue under discussion is the reliability plan, which addresses measures and strategies to ensure the reliability of the electricity system in Nova Scotia.

Issue How the application addresses the following: - a) competition and innovation in the provision of energy resources in the Province; - b) the development of a competitive electricity market; - c) the provision of safe, secure, reliable...

AI summary The document outlines the key issues to be addressed in the application, focusing on competition and innovation in energy resources, the development of a competitive electricity market, ensuring safe and reliable energy supply, and promoting sustainable development and prosperity in Nova Scotia.

- 2. NS Power submitted that matters relating to its rate base did not warrant further evidence in the hearing of this matter because of the settlement agreement and the fact that it receives approvals for capital additions to its rate bas...

AI summary NS Power argues that its rate base and capital additions require no further evidence due to a settlement agreement and approvals under the Public Utilities Act. It contends that its 2024 load forecast, previously reviewed by the Utility and Review Board, is sufficient for rate-setting. The Five-Year Reliability Plan, already under assessment in proceeding M12012, is deemed redundant to re-evaluate during the GRA test period.

Conclusion While NS Power was the only party to explicitly comment on the issues included on the Draft Issues List, the Board notes that parties, such as the Kwilmu'kw Maw-klusuaqn Negotiation Office and the Assembly of Nova Scotia Mi'kmaw...

AI summary NSP was the sole party commenting on the Draft Issues List, but other groups expressed interest in affordability, reliability, and resiliency. The Board includes these issues in scope, tied to NSP's duty to provide safe and adequate service, but is legally bound by the Public Utilities Act and case law prohibiting rate waivers based on affordability.

Request IR-41: - Reference: N-6 2026-2027 GRA Direct Evidence Appendix 7C Page 43-44 of 58 - Per N-6, (Appendix 7C), page 43-44 of 58, we understand that labour expense has increased - from 2024 compliance restated to 2026 forecast for "re...

AI summary The document requests detailed information on the creation of NSPI's reliability implementation department and expansion of the Standards & Community Engagement team, citing increased labor expenses due to centralization of resources for system reliability. It asks for roles and salaries related to these changes.

Request IR-42: - Reference: N-6 2026-2027 GRA Direct Evidence Appendix 7C Page 43-44 of 58 - Per N-6, (Appendix 7C), page 43-44 of 58, we understand that consulting expense and - membership dues expense has increased from 2024 compliance r...

AI summary The request seeks an explanation for increased consulting and membership dues expenses in the 2026 forecast compared to 2024, attributed to 'reliability implementation' and reallocation from contracts related to standards and community engagement.

Request IR-6: - Please provide NS Power's reliability indices for 2019 to 2024 inclusive, including: - a) System Average Interruption Duration Index (SAIDI). - b) System Average Interruption Frequency Index (SAIFI). - c) Customer Average I...

AI summary The document requests NS Power to provide reliability indices (SAIDI, SAIFI, CAIDI, CAIFI) from 2019 to 2024, along with comparisons to other Atlantic Provinces and Electricity Canada.

Request IR-11: - Reference: Exhibit N-3 GRA Direct Evidence, Section 1.4 Reliability and System Strength - On page 11 of the application, NS Power says it is advancing innovative large-scale capital - projects that will ensure the stabilit...

AI summary NS Power claims its large-scale capital projects ensure grid stability during Nova Scotia's energy transition, replacing fossil fuels with renewables at a pace serving Nova Scotians. The request asks for elaboration on this pace and its alignment with ScottMadden Report findings that NS Power's capital metrics are at or below peer median.

Request IR-12: - Reference: Exhibit N-3 GRA Direct Evidence, Section 1.4 Reliability and System Strength - On page 11 NS Power notes that over 65 community meetings were held throughout Nova Scotia - to discuss reliability and understand c...

AI summary Request IR-12 seeks information on NS Power's community engagement for reliability planning, VoLL data improvements, customer satisfaction metrics, reliability investments, revenue requirements, and cost recovery methods for the Reliability Intertie project. It references prior board matters and requests data validation, including outage numbers and reliability calculation methodologies.

Request IR-56: - Reference: Exhibit N-6 Appendix 7A - On page 27 of Appendix 7A, NS Power advises it has increased expense in Grid Modernization - and Customer Integration to hire seven additional employees on the Customer Experience team...

AI summary NS Power is increasing expenses by hiring employees for customer experience and data analytics to expand services and improve asset management. The request asks about new services and whether the outdated Customer Information System (CIMS) limits rate expansion, referencing Matter M11884.

Request IR-59: - Reference: Exhibit N-6, Appendix 7A, Figure 7A-10, page 22 of 37 - NS Power provided the storm restoration operating expenses for years 2020 to 2024. - a) The table indicates a much lower operating expense in 2021 and 2024...

AI summary Request IR-59 seeks explanations from NS Power for lower storm restoration operating expenses in 2021 and 2024, requests updated storm level data, and inquires about grid resilience research. NS Power cited measures like improved insulator designs in its Storm Outage Analysis Report (M12071).

Request IR-74: - Reference: Exhibit N-14, OP-03, Attachment 1, ScottMadden Report, p. 28 of 87, Transmission - and Distribution Metrics - The report notes: NSPI widened its positive gap in the Distribution OM&G metrics through 2021, - but...

AI summary NSPI's Distribution OM&G expenses grew faster than peers since 2021 due to increased storm costs, customer growth, reliability investments, and customer-requested work. The report asks ScottMadden if similar data exists for peer utilities.

Request IR-75: - Reference: Exhibit N-14, Op-03 Attachment 1, ScottMadden Report - On page 29 one of the factors contributing to performance is listed as the adoption of unit flexible - operations. Please explain what the adoption of unit...

AI summary The request seeks clarification on 'unit flexible operations' as a performance factor from the ScottMadden Report (Exhibit N-14, Op-03 Attachment 1), page 29. The query aims to understand how this operational approach contributes to performance metrics.

Request IR-76: - Reference: Exhibit N-14, OP-03, Attachment 1, ScottMadden Report, page 57 of 87, Capital - Additions Metrics - a) Do the summary observations on NS Power's capital additions metrics suggest that NS Power's investment in it...

AI summary The document raises two questions regarding Nova Scotia Power's capital additions metrics, inquiring if their investment is below average compared to peers and whether this suggests lagging investments in system reliability.

M12451- Nova Scotia Power – General Rate Application (GRA) Closing Statement From The Nova Scotia New Democratic Party Caucus. Represented by the Leader of the Official Opposition, Claudia Chender and Official Opposition Energy Critic, Sus...

AI summary The Nova Scotia New Democratic Party opposes Nova Scotia Power's rate increase, citing rising costs for consumers, increased corporate profits, service reliability issues, and data breaches. They argue the increase is unjustified given the company's performance and the financial burden on households.

ic Utilities Act to order staged or multi-year general rate increases. We encourage the Board to approve five-year rate increases moving forward, to provide stability and predictability for customers. The Board also heard evidence concerni...

AI summary The document advocates for five-year rate increases to ensure customer stability, highlights billing instability from Nova Scotia Power's cybersecurity incident, and criticizes the utility's ongoing reliability failures. It argues that systemic issues in planning, risk allocation, and governance require an independent review to restore public confidence and ensure fair rate decisions.

6% of after-tax income on heat and lights[1](#page-0-0) . 1 Energy Poverty and an Equitable Transition to a Net-Zero Carbon Future in Nova Scotia – EfficiencyOne The Department submits that the Board must assess whether the requested rate...

AI summary The Department argues that NS Power's requested rate changes are not just and reasonable, citing increased profits, service reliability issues, a cyber breach, and excessive rate increases. It asserts NS Power has not met its burden of proof under the Act, considering economic circumstances and the factors outlined.

Return on Equity - 22. The Department submits that NS Power's ROE should be set at 7.6%, as recommended by Dr. Cleary[5](#page-4-0) . This is less than the 9% ROE NS Power currently receives and will save ratepayers money. - 23. Even if th...

AI summary The Department recommends setting NS Power's ROE at 7.6% to save ratepayers money, citing Dr. Cleary's analysis. The Consensus Agreement panel previously supported the existing 9% ROE, but the Department argues this is against public interest due to reliability issues. NS Power did not rebut Dr. Cleary's evidence, which shows NS Power has exceeded allowed ROE in multiple years.

ication. - 31 Ms. Palmer, in her evidence and testimony, noted that in other jurisdictions which use the 32 Minimum System Method, including Ontario, a peak load carrying capacity (PLCC) is applied to 4 M12451, Exhibit N-37, Synapse Eviden...

AI summary The document discusses the comparison between the Minimum System Method and Basic Customer Method in Nova Scotia's regulatory proceeding. Ms. Palmer's evidence highlights that jurisdictions like Ontario use the Minimum System Method with a peak load carrying capacity (PLCC) factor, referencing various exhibits and matter numbers.

Board. NS Power's most recent system adequacy study, updated annually as part of the 10-Year System Outlook, confirmed that Lingan Unit 2 remains necessary to maintain system reliability during the transition to 80 percent renewable genera...

AI summary NS Power's system adequacy study confirms the necessity of Lingan Unit 2 for maintaining system reliability during the transition to 80% renewable generation and coal retirement by 2030. The unit will remain a seasonal peaking resource until the latter part of this decade. Refurbishment is now necessary due to increasing peak demand and operational constraints, despite efforts to minimize capital investment.

DATE FILED: February 6, 2026 Page 3 of 37 1 accordingly. The Board cannot, however, make rate decisions based solely on 2 reliability issues or current public opinion of the Utility. There are appropriate 3 sanctions a regulator can impose...

AI summary The NSEB emphasizes that rate decisions cannot be based solely on reliability issues or public opinion. Sanctions for inadequate service typically involve higher expenditures, not cost reductions, and generally do not include a moratorium on rate increases in a regulated utility environment.

vices of a utility. Its decision of February 25, 1970, in respect of an application of Maritime Telegraph and Telephone Company Limited, contains the following at p. 25 of the Board's Report for 1970: A public utility is obligated to provi...

AI summary The Board's 1970 decision outlines that public utilities must provide safe, adequate services and charge non-discriminatory rates sufficient to cover operating expenses, depreciation, taxes, and capital needs. Rate revisions require evidence of necessity, with the Board examining service adequacy, efficiency, and the propriety of proposed changes.

, respond to customer inquiries on billing and usage, and support the design and evaluation of customer programs. However, there is also a proposed increase for customer engagement and communications: The incremental labour for Customer Ex...

AI summary NS Power proposes increased customer engagement costs to support digital solutions like Green Button and My Energy Insights, along with training programs. It argues that Customer Satisfaction (CSAT) is not a reliable metric for evaluating its 5-Year Reliability Plan, focusing instead on performance standards and reliability improvements.

3.3.1.1 Findings [90] NS Power's proposed increase in OM&G costs is significant. It represents a 20% increase in 2027 (18.3% in 2026) from the OM&G costs included in rates approved in the 2023-2024 GRA. The burden is on NS Power to show th...

AI summary NS Power's proposed 20% increase in OM&G costs for 2027 is partially justified by the Board, citing increased customer service demands, the 5-Year Reliability Plan, and grid-scale battery integration to meet RES requirements. The Board emphasizes NS Power must prove all costs are just and reasonable.

is own personal judgement rather than current market data. It said other inputs and assumptions were not reasonable given the context of current and prospective economic and capital market conditions. [508] In its closing submissions, the...

AI summary The NDP Caucus urged the Board to lower Nova Scotia Power's rate of return based on Dr. Cleary's evidence. The Department of Energy argued against higher returns, citing poor reliability and impacts on rural ratepayers. NS Power did not rebut Dr. Cleary's findings, which showed NS Power exceeded allowed returns in 8 of 12 years since 2012.

ngly. The Board cannot, however, make rate decisions based solely on reliability issues or current public opinion of the Utility. There are appropriate sanctions a regulator can impose should a Utility be found to have an inadequate or unr...

AI summary The Board cannot base rate decisions solely on reliability issues or public opinion. Sanctions for inadequate systems typically involve increased expenditures, not cost reductions. Rate increases are rarely paused despite service issues. [2005 NSUARB 27]

Classification of Generation Costs by System Load Factor NS Power's current approach to the classification of generation-related fixed costs such as depreciation and financing costs is to first classify environmental and fuel conversion-re...

AI summary NS Power currently classifies generation-related fixed costs by first allocating environmental and fuel conversion-related capital costs to energy, then using system load factor for other assets. They propose changing this method to classify all generation assets using the system load factor exclusively.

3.8.4 Peak Load Carrying Capability Adjustment [617] Ms. Palmer also recommended that a peak load carrying capability adjustment be applied to account for the demand component served by the minimum system, if the basic customer method is n...

AI summary Ms. Palmer recommends a peak load carrying capability adjustment to account for demand served by the minimum system, citing examples from Ontario (0.4 kW), Excel Energy (1.5 kW), and National Grid's approach. NS Power agrees that the minimum system has load-carrying capacity and supports crediting 1.5 kW/customer for non-coincidental peak demands.

o. Transmission Customers can purchase each of the Ancillary Services from the Transmission Provider, or they can self-supply the capacity-based ancillary services or purchase them from a third party. [661] The capacity-based ancillary ser...

AI summary The document outlines capacity-based ancillary services (CBAS) requirements, including Regulation, Frequency Response, and Operating Reserves, with specific MW thresholds set by NPCC. NS Power notes that LIIR interruptible load, while unsuitable for day-ahead planning, provides real-time value. The 2026-2027 costing approach uses 50% of LIIR's estimated demand as 10-minute reserve, reducing required supplemental reserves by 35 MW.

Request IR-7: - NS Power stated that additional billing periods or split billing periods could impact other systems - that rely on the billing data and mentioned that the MyEnergy Insights tool provides personalized - energy usage and bill...

AI summary NS Power asserts that additional or split billing periods may affect systems reliant on billing data, including the MyEnergy Insights tool. The request asks for details on impacted systems, how varying billing durations are handled, potential impacts on the tool, effects of a cybersecurity breach, and confirmation of the tool's ability to display daily energy usage averages.

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 for metering and service provisions are outlined, including capital contributions for primary metering, customer responsibility for non-standard transformers, and requirements to maintain power supply integrity through reliability and system stability considerations.

GENERAL TIME OF USE TARIFF Page 4 of 4 (4) In assessing issues which might unduly affect the integrity of the power supply system the following would be considered: reliability, harmonic voltage and current levels, voltage flicker, unbalan...

AI summary The document discusses factors that could affect the integrity of the power supply system, including reliability, harmonic voltage and current levels, voltage flicker, unbalance, rate of change in load levels, stability, fault levels, and other related conditions.

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 eight minutes of notification by the Transmission Provider to ac...

AI summary Suppliers providing Operating Reserve must deliver 100-110% of the required MW within eight minutes of notification and maintain it for 50 minutes. Failure to meet this obligation incurs a penalty equal to one month's charge for the deficient reserves.

Activation of Reserves When a contingency occurs, the Transmission Provider will activate, at its sole discretion, sufficient reserves from (i) those under contract with the Transmission Provider, (ii) those provided by Transmission Custom...

AI summary The document outlines the process for activating reserves during contingencies, specifying that the Transmission Provider will activate reserves from various sources, including contracted resources and third parties. The activation aims to minimize costs and restore pre-contingency conditions within required timeframes, with specific responsibilities for Transmission Customers.

SCHEDULE 6: OPERATING RESERVE – SUPPLEMENTAL RESERVE SERVICE Supplemental Reserve Service (also referred to as Contingency Reserve – Supplemental) is needed to serve load in the event of a system contingency; however, it is not available i...

AI summary This section outlines the requirements for Supplemental Reserve Service, which is used to serve load during system contingencies. It specifies that the Transmission Provider must offer this service, and the Transmission Customer must either purchase it or make alternative arrangements. Charges for the service are outlined and are based on costs passed through by the Operating Area operator.

OPENING STATEMENT 13 AFFORDABLE ENERGY COALITION 1 has been taken. We submit that the Board could review 17 of the highest electricity rates in the country. 18 Just for one example, this last summer 19 in July, power went out for 11,000 cu...

AI summary The Affordable Energy Coalition highlights Nova Scotia Power's failure to meet reliability targets, leading to power outages and fines. It criticizes the reliance on coal for electricity generation and points to the provincial government's lack of investment in grid modernization and coal phase-out.

OPENING STATEMENT 25 NOVA SCOTIA LIBERAL CAUCUS 1 households and businesses with predictable electricity 7 million by 2027, a 50 percent increase in just four years. 8 Nova Scotia Power is asking people to 9 pay more while their corporate...

AI summary The Nova Scotia Liberal Caucus opening statement highlights concerns about rising electricity costs, stagnant household income, unreliable power, data breaches, and declining trust in Nova Scotia Power. It criticizes the company for increasing profits while service quality decreases and notes the impact of a recent data breach on customers.

OPENING STATEMENT 31 NOVA SCOTIA NDP CAUCUS 1 how best to serve Nova Scotians going forward. 2 So far the current government has 3 refused to take any of these steps, and against this 4 backdrop it is vital that the Board review this 5 App...

AI summary The Nova Scotia NDP Caucus criticizes Nova Scotia Power for failing to meet reliability standards and increasing coal use while passing higher fuel costs onto consumers. They urge the Board to prioritize affordability and ensure the company acts in the best interest of customers.

NSP COST OF SERVICE PANEL 45 Questions, (Deveau) 1 evidence but did not go to an oral hearing, 5 in fact, both filed as part of the GRA, and so Directive C 6 or line item C was filed as Appendix 3B and Directive N or 7 line item N was file...

AI summary Nova Scotia Power Inc. (NSP) outlines its commitment to providing safe and reliable electricity service while managing costs and capital investments in the best interests of customers. The company emphasizes the importance of system reliability, resilience against extreme weather, economic development, and meeting climate targets.

1 Power's direct evidence, so the General Rate Application; 17 mission Lingan Unit 2 had been updated annually through 18 the system adequacy studies which are a part of the 10- 19 year system outlook, so from the timeline of that, INTERNA...

AI summary The document discusses the retirement date changes for Lingan Unit 2, from the 2020s to 2028, and the associated increase in sustaining capital required to maintain system capacity and meet NERC MPCC requirements. The timeline of these changes and the associated spending estimates are also outlined.

1 there's some valuable aspects of it, and they talk about 2 intending to use a customer satisfaction metric in its 3 reliability plan? 4 (MacIntosh) Yes, Mr. Mahody, if A. 5 you consider the CSAT metric and then how the Five-Year 6 Reliab...

AI summary The discussion revolves around the use of a customer satisfaction (CSAT) metric in Nova Scotia Power's reliability plan. While CSAT data is considered valuable, it is not used as a performance standard. Instead, performance standards are viewed as objective benchmarks for measuring success in reliability.

1 reliability team, sir, where we have the subject matter 2 experts, if you will, from the company attending these and 3 presenting at these, but they're supported by the 4 communications team. 5 MEMBER DEVEAU: Okay. And then let's 6 go to...

AI summary The discussion focuses on a $2.8 million increase in reliability implementation costs from 2024 to 2027, primarily attributed to a $2.5 million increase in 2026. This is explained in a document referenced by Member Deveau, who is examining the figures.

1 meetings or sessions in specific communities. 2 So certainly there's a benefit to kind 3 of, I'll call it more generic communication, whether it be 4 social media or posting on websites, that type of thing, 5 but I don't think –– certain...

AI summary The discussion highlights the importance of face-to-face communication in community engagement, particularly in addressing reliability issues and community-specific concerns related to hydro facilities.

possible. So bringing people directly to the community and holding community meetings, as opposed to, you know, somebody like going door to door, something like that. It's trying to create economies of scale and provide that information as...

AI summary The text discusses the challenges of effective community consultation and the need to balance reliability with affordability in the context of a Five-Year Reliability Plan. The speaker acknowledges that there is no perfect approach to consultation and that adjustments may be needed in the future.