Topic:"Asset Management" in M12558

- 1 before they occur, while reactive investments are essential to address unavoidable failures and 1 Request IR-7: 2 criterion when determining investment decisions. 3 4 Please refer to IR-8 for additional information. 5 6 NS Power uses i...

AI summary The document discusses NS Power's use of an asset management mechanism that evaluates reliability performance using a risk-based approach, considering both leading and lagging indicators. It also references validation by EA Technology in matters M11067 and M12022, and aligns with ISO55000-1 standards.

The remaining investment outlined in the Reliability Plan is all considered proactive. Proactive investments leverage the Asset Management Mechanism and leading indicators based on Asset Condition. It is imperative that the effectiveness o...

AI summary The document emphasizes the importance of using leading indicators in asset management for proactive investments, arguing that relying solely on lagging performance indicators like customer interruption hours can lead to underinvestment in critical transmission and substation assets.

This includes 147 projects presented in ACE 2025 categorized as reliability investments Section Investment Category 2025 11S-302 425.4033333 21239.082 575.0196667 0 228.112 5750.488 10685.16033 4698.41 346940.8483 31206.929 208164.509 1699...

AI summary The text presents a table of 147 reliability investment projects from the ACE 2025 plan, categorized under various sections and investment categories with numerical values for the year 2025. The data includes figures related to investments, costs, and other metrics.

1 Request IR-20: 4 clear in a day) in its Reliability Plan? 5 6 (a) If so, how? 7 8 (b) If not, why not? 9 10 Response IR-25: 11 12 Yes. 13 14 (a) NS Power has considered operational, resourcing, and execution constraints in the 15 develop...

AI summary NS Power has considered operational and resource constraints in developing its Five-Year Reliability Plan, using historical data and external crews to manage workload. However, interactions between solutions in the plan were not quantified at the high-level program component stage, with specific interventions determined later based on risk assessments.

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 2025 Anticipated Year End Investment: $152.4...

AI summary The document outlines a 2024-2029 forecast investment of $916 million for storm hardening through targeted equipment replacements and upgrades on the distribution, transmission, and substation systems. The initiative aims to improve grid reliability and resilience by reducing outage frequency, increasing capacity, and integrating advanced monitoring technologies.

- 17 These efforts are part of NS Power's ongoing commitment to improving system reliability, 18 enhancing customer experience, and supporting a more resilient energy future for the province. 1 5.1.1 Upgrade and Replace Aging Equipment 2 3...

AI summary NS Power is upgrading aging equipment and installing protective devices to improve system reliability, reduce outages, and enhance safety. Efforts include replacing aging assets and installing reclosers, with progress tracked across various regions.

Request IR-33: Please describe how the ability to mitigate each asset is scored, the range of scores applied to the risk rating, what each score means, and how asset condition is weighted in the criticality score. Response IR-33: NS Power...

AI summary NS Power states that it does not understand the reference to 'ability to mitigate each asset' in the inquiry, as this factor is not part of its condition or criticality scoring for feeder risks. Risk mitigation is a result of risk identification, not a component of the risk rating itself.

(b) Cost-effectiveness was evaluated primarily at the program and asset-class level through NS Power's capital governance and asset management processes, supported by program-level reliability forecasting and comparative assessment of alte...

AI summary NS Power evaluated cost-effectiveness at the program and asset-class level, considering capital expenditures and reliability benefits such as reduced outage duration and frequency. Feeder-level data was used to prioritize investments, but not for standalone cost-benefit analyses at the feeder level.

2025-2029 Five Year Reliability Plan Review IR-38 Attachment 2 Page 1 of 1 Investment Track Sub-Program Scalability Notes Section SAIDI H lour Per $1M (Low) SAIDI Hou r Per $1M (High) Proposed Incremental Investment SA DI Reduction (Low) S...

AI summary This document outlines NS Power's approach to reducing SAIDI (System Average Interruption Duration Index) through prioritization of high-risk assets and vegetation management interventions. It highlights the use of an iterative optimization process and the standard width for distribution rights-of-way as part of the five-year reliability plan.

22 Strategy Spans Kilometer Total Cost Cost/Span Cost/Kilometer 8 that influenced the 2025 vegetation management planning. In addition to the qualitative 9 factors, quantitative factors such as vegetation condition ratings will also influe...

AI summary The text discusses vegetation management planning for 2025, including the use of qualitative and quantitative factors such as vegetation condition ratings to influence risk-based decisions. It also references attachments for detailed information on contract dollars, work not accomplished, and reprioritized feeders. Unforeseen issues like storms, wildfires, and safety concerns may require rapid action.

82V-402 1 Request IR-44: 2 3 For each feeder listed in Figure 10: 2025 Trip Saver Installations on page 5 of the Reliability 4 Plan, please explain and provide all quantitative support for why these feeders were targeted 5 in 2025. Please...

AI summary The request asks for an explanation of why specific feeders were targeted for trip saver installations in 2025, including reliability improvements, costs, and reasons for not accomplishing work on some feeders. NS Power's response indicates that feeders were selected based on an asset management mechanism that assesses feeder risk, including condition and criticality.

Response IR-47: (a) These projects are selected based on NS Power's asset management mechanism which includes an assessment of feeder risk (condition and criticality). Condition is assessed through a combination of inspection results (e.g....

AI summary NS Power selects conductor upgrade projects based on an asset management mechanism that evaluates feeder risk, including condition, criticality, and loading. Upgrades are prioritized to reduce outages, improve reliability, and enable live line work. Reliability improvements are estimated across the program, with details available in Synapse IR-38.

8 (iv) Work that was completed but not initially identified is as follows: Region Feeder km Reconductored Cape Breton 1C-411 3.2 Cape Breton 58C-405 1.3 West 663V-211 1.8 West 16W-301 13.4 West 55V-313 0.1 West 78W-301 0.5 West 57W-401 0.3...

AI summary This section details work completed by NS Power that was not initially identified, including reconductoring on various feeders across different regions. The work was prioritized based on feeder risk drivers and project readiness, with some projects not requiring Grade 1 assessments.

(e) These projects are selected by adhering to the principles and guidelines within NS Power's Asset Management Mechanism. Underground Projects included consideration for historical reliability. Consistent with this approach, specific segm...

AI summary The selection of underground projects follows NS Power's Asset Management Mechanism principles, focusing on historical reliability and addressing issues identified through inspections to maintain the system effectively.

15 (iv) Additional underground-related work, not originally identified for execution 2025 16 occurred on the following feeders: 4S-323 10 unique projects, key programs aimed at ongoing maintenance and asset life 11 extension), please break...

AI summary The text outlines additional underground-related work that was not originally identified for execution in 2025, including requests for detailed project breakdowns, cost information, reliability improvements, explanations for unaccomplished work, and reasons for implementing projects outside the original plan.

IDI reduction range of 0.70 to 1.25 hours by 2029 was derived using the total proposed investment level rather than deterministic project‑level attribution. Please refer to Synapse IR-38 Attachment 2. Ultimately, the specific projects for...

AI summary The IDI reduction range of 0.70 to 1.25 hours by 2029 is based on total investment rather than individual project attribution. Annual reviews and risk assessments guide NS Power's capital expenditure decisions, balancing reliability improvements with operational constraints and prioritizing high-risk assets.

NON-CONFIDENTIAL 1 10 11 Equipment Replacement and Upgrades: 12 13 Condition-Based Replacement: Enhanced asset management data from RTUs and • 14 connected devices enables more targeted equipment replacement based on actual 15 condition ra...

AI summary The document discusses equipment replacement and upgrades, focusing on condition-based replacement, prioritization of assets, and integration of new devices with SCADA systems. It also covers storm response and restoration, including faster damage assessment, optimized crew dispatch, and automated restoration using FLISR capabilities. The text requests detailed cost information for specific areas of focus in the Reliability Plan.

1 8 14 20 (i) The RTUs that were commissioned in 2025 were implemented throughout the year. Reliability improvement estimates are averaged across the program and are not available per device upgrade. The specific quantitative impacts of ea...

AI summary In 2025, NS Power deployed RTUs across multiple sites, with six of eleven fully commissioned by year-end. The remaining five faced delays due to storm response and winter loading constraints. Total investment was approximately $893,000, with costs recorded on a project basis rather than per substation or feeder.

RTU Connectivity Substation Description Substation Criticality Substation Customers Feeder Criticality 23 Reliability Plan, but were targeted for reliability investment in 2025. 24 25 (v) Why did NS Power implement programs on connections...

AI summary NS Power selected locations for reliability investments based on an asset management framework that considers feeder risk, historical reliability performance, geographic and operational factors, and feeder criticality. The response outlines the rationale for targeting these areas, including factors such as customer interruption concentration and operational challenges.

2 (b) While the impact of a FLISR implementation does not necessarily reduce an event's 3 likelihood of occurring in the first place, it is expected to improve overall circuit-level 4 performance (CKAIFI and CKAIDI) by isolating faults mor...

AI summary The implementation of FLISR is expected to improve circuit-level performance by reducing the number of customers affected per outage and decreasing outage duration. However, the exact reduction in CKAIFI and CKAIDI is difficult to estimate due to external factors. Case studies and asset management frameworks support the benefits of FLISR in enhancing feeder resilience.

CI C0071528 – FLISR Implementation (NSEB M12417) NSPI Responses to NSEB Information Requests 1 (c) As noted in part (b), the project is not designed or intended to prevent outage events from 2 occurring, but improvements in reliability per...

AI summary The document discusses NS Power's FLISR implementation, noting that the project does not aim to prevent outages but improve reliability performance through faster restoration. Performance will be evaluated using asset management frameworks and risk-based assessments, with data from ADMS and AMI used for validation. A formal cost-benefit analysis was not conducted due to FLISR's unique functionality.

NON-CONFIDENTIAL Duration (hrs) Count of Premise ID % Restored Customer Hours Avoided Count of Customer Interruptions Saved 18 and do not overlap with its other investment plans? 19 20 Response IR-65: 21 22 (a-d) NS Power's Five-Year Relia...

AI summary NS Power's Five-Year Reliability Plan is developed through asset management practices to address system risks and ensure safe, adequate service. Affordability is a key consideration in implementing the Plan to mitigate rate pressure on customers. The Plan is expected to reduce future outage-related costs and emergency response expenses.

Five Year Reliability Plan 2025-2029 (NSEB M12558) NSPI Responses to Synapse Energy Economics Information Requests 1 Request IR-67: 2 3 Please refer to NS Power's response to IR-11 (b) which states, "The concerns raised through 4 engagemen...

AI summary NS Power's response to Synapse Energy Economics' information requests outlines customer concerns regarding localized tree trimming and vegetation management, as well as feedback on affordability and rate impacts. These concerns have informed NS Power's asset management framework and approach to reliability performance improvements.

NON-CONFIDENTIAL 1 may be related to an asset failure, so the risk rating process and results are better considered as a 2 method to identify areas requiring potential mitigation that can be reviewed in detail by NS Power 3 Asset Strategy...

AI summary NS Power uses a risk rating process to identify areas requiring mitigation, particularly for critical assets like power transformers. Reliability-related projects between 2027 and 2031 will be filed with the NSEB as part of future ACE Plans or standalone submissions. Risk mitigation measures depend on risk scores, criticality, and available strategies, not just capital investment.

Request IR-31: - Please describe how the condition of each asset is scored, the range of scores applied to the risk - rating, what each score means, and how asset condition is weighted in the risk rating.

AI summary The request asks for details on how asset condition is scored, the range of scores used in risk ratings, the meaning of each score, and the weighting of asset condition within the risk rating framework.

Request IR-67: - Please refer to NS Power's response to IR-11 (b) which states, "The concerns raised through - engagement activities with customers have been incorporated into the development of the Five- - Year Reliability Plan primarily...

AI summary The text refers to NS Power's response to IR-11 (b), highlighting that customer engagement concerns have informed the Five-Year Reliability Plan and asset management framework. Customer feedback on affordability and rate impacts has influenced the pace of reliability improvements.

Request IR-69: NS Power states in its response to IR-16 that "Reactive investments address assets that have failed or are at imminent risk of failure based on lagging indicators and require timely intervention to restore service, maintain...

AI summary NS Power is asked to define 'imminent risk of failure' and explain how it determines if assets are at that risk, based on its response to IR-16 regarding reactive investments.

Request IR-72: - Please refer to NS Power's response to IR-18 which states, "Specific projects had not been - defined for 2026–2029, at the time of filing the Five-Year Reliability Plan. Investment levels for - these years therefore reflec...

AI summary The document outlines a request (IR-72) to NS Power regarding asset tracking, large reliability investments, and the determination of reliability investments for feeders with varying condition scores. It asks whether NS Power tracks asset conditions for reliability projections, anticipates large investments in the 2027–2031 period, and explains how it determines when to invest in feeders with specific condition scores.

Request IR-93: - Please refer to page 6 of NS Power's response to IR-52 which states, "Condition-Based - Replacement: Enhanced asset management data from RTUs and connected devices enables - more targeted equipment replacement based on act...

AI summary Request IR-93 asks NS Power to detail how enhanced asset management data from RTUs and connected devices is used to improve equipment replacement decisions and asset prioritization, specifically for RTUs, FLISR, and distributed energy resources.