Topic:"Energy Efficiency Resource Assessment Model" in M12619

1 using the Asset Management Mechanism described in Section 3.0, which enables consistent, risk- 2 informed prioritization across the fleet. Investments are selected to maintain safety, reliability, and 3 affordability, with consideration...

AI summary The text outlines NS Power's approach to asset management, emphasizing risk-informed prioritization, safety, reliability, and affordability. It highlights the transition of thermal generation assets toward retirement or fuel conversion by 2030, in line with the Province’s Clean Power Plan, and discusses capital investment plans for both thermal and renewable generation in 2026.

Right-of-Way Widening 128.9 ECEI 7.2 3 3.3 4 5 Transmission investment is guided by NS Power’s Asset Management mechanism and the Capital 6 Expenditure Justification Criteria (CEJC). Asset condition and criticality are evaluated using the...

AI summary The document outlines NS Power’s transmission investment strategy, guided by its Asset Management mechanism and Capital Expenditure Justification Criteria (CEJC). It emphasizes reliability, customer growth, and compliance with environmental obligations, including the Clean Power Plan, which aims for 80% renewable electricity by 2030. Investments in the Eastern Clean Energy Initiative (ECEI) and battery storage are highlighted.

of 782 REDACTED REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026 ACE Plan CONFIDENTIAL (Attachments Only) 1 Pursuant to Section 6.1 of the CEJC, NS Power’s generation, transmission and distribution capital 2 projects are rated according to...

AI summary The 2026 ACE Plan outlines NS Power’s project rating methodology for capital expenditures, emphasizing health and safety, environmental compliance, business sustainability, and technical justification. Projects are rated using a matrix based on criticality and condition, resulting in a risk score from 1 to 25.

uts of the condition score for these projects will be provided in subsequent ACE 10 Plans for five years following the in-service date of the project. 11 12 The Board’s Decision pertaining to the 2023 Performance standards provided the fol...

AI summary The Board has directed NS Power to prepare a comprehensive five-year reliability plan to track service improvements and progress against performance goals, to be filed by December 31, 2024. This follows the 2023 Performance Standards Report and relates to the 2026 ACE Plan.

22 in progress and expected to be distributed in Q1 2026. The results of both surveys will be reviewed 23 and analyzed to determine the potential applicability in risk-based decision-making at NS Power 24 going forward. 25 26 While there i...

AI summary NS Power is conducting surveys to evaluate resilience metrics for risk-based decision-making, with results expected in Q1 2026. Further work is needed to assess the applicability and effectiveness of these metrics, along with engagement with industry groups like CEATI.

10.00 0.00 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 NS Power Atlantic Utilities 2 3 4 Figure 61 and Figure 62 below represent NS Power’s reliability statistics with Major and Extreme 5 Events (such as Hurricanes Dorian, Fiona, and...

AI summary The document discusses NS Power’s reliability statistics, showing improvements in SAIFI and SAIDI metrics due to reduced severe weather events and effective outage prevention initiatives. It also mentions the 2026 ACE Plan, which is marked as confidential.

CONFIDENTIAL (Attachment Only) 1 necessary to account for the potential additional costs associated with potential, necessary 3.7 Mass of Core and Coils - kg 21000 3.8 Mass of Tank and Fittings - kg 12500 Oil Mass 3.9 - kg 14000 Oil Volume...

AI summary The text provides technical specifications for a transformer, including details on mass, oil type, noise levels, and bushing parameters. It includes information about the core, coils, tank, and various components of the transformer, such as cooling fans and bushing ratings.

2026 Annual Capital Expenditure (ACE) Plan (NSEB M12619) NSPI Responses to Consumer Advocate Information Requests 1 Request IR-23: 25 (e) Yes, NS Power does believe that creating distance between the treeline edge and power 26 lines will c...

AI summary NSPI responds to information requests regarding the 2026 Annual Capital Expenditure (ACE) Plan. It discusses the effectiveness of vegetation management in reducing outages, the coding of outage events, and the use of frontline employee data for decision-making.

1 Request IR-1: 2 3 Reference: N-1, 2026 ACE Plan, page 7, lines 19-29 4 5 In 2024, the creation of a new Independent Electricity System Operator in Nova 6 Scotia (IESO-NS) changed the electricity planning landscape in Nova Scotia, 7 8 and...

AI summary The creation of the Independent Electricity System Operator in Nova Scotia (IESO-NS) in 2024 has led to changes in project accountability for NS Power. NS Power aligns its decarbonization initiatives with the Province's Clean Power Plan and the Evergreen IRP, ensuring cost-effectiveness through competitive RFP processes and regulatory approvals.

NON-CONFIDENTIAL 1 Request IR-81: 2 In addition, the ongoing IESO NS‑led Integrated Resource Plan, currently underway, will 3 continue to evaluate the long‑term utilization of TUC1 and other thermal assets. This 4 process will further upda...

AI summary The text discusses the need for last stage blade replacement at TUC1 due to safety and reliability concerns. The assessment was based on inspection findings and expert reviews, concluding that partial blade replacement would not sufficiently reduce the risk of failure.

73W Load Forecast Figure 11: Load Forecast – Auburndale (73W)

AI summary The document presents a load forecast for the Auburndale (73W) area, illustrated in Figure 11. It includes a visual representation of projected electricity demand, though no specific details or analysis are provided in the text.

2026 Annual Capital Expenditure (ACE) Plan (NSEB M12619) NSPI Responses to NSEB Information Requests 1 2 The condition rating of 5 reflects that these synchronous condenser units are not yet in 3 service, and no equivalent equipment curren...

AI summary The text discusses the 2026 Annual Capital Expenditure (ACE) Plan by Nova Scotia Power Inc. (NSPI) in response to information requests from the Nova Scotia Energy Board (NSEB). It highlights the need for synchronous condenser units due to a gap in system capability and raises questions about low-risk investments in a generating unit set to retire.

2 This results in an average production of 190,082 MWh, which was rounded to 190 GWh 3 or 190,000 MWh for the purpose of this calculation. 4 5 (b) NS Power used the 10‑year average production of approximately 190 GWh in its NPV 6 analysis...

AI summary NS Power used a 10-year average production of 190 GWh for its NPV analysis of the Mersey Hydro System (MHS) because it provides a more accurate long-term estimate of generation, accounting for variability in hydroelectric production due to factors like precipitation and reservoir conditions.

SUMMARY OF PROFESSIONAL EXPERIENCE - 2023– Present Vice President, Grid Strategies, LLC . Provides research, technical assistance, and expert testimony on electric- and gas-utility planning, economics, and regulation. Reviews electric util...

AI summary The individual has extensive experience in energy regulation, utility planning, and environmental policy, spanning over two decades in roles involving regulatory policy, expert testimony, and program evaluation. Their work includes advising on electrification, energy efficiency, and renewable resource performance, as well as participation in air quality and legislative advocacy.

Residual hydrocarbor conditions in indoor of Surface soils are not No dirt basement floo Confirmed that correct Confirmed that correct Default Site Charact Issue Depth to groundwate Impacted soil thicknet Default foundation craft Two floor...

AI summary The document discusses site assessment and tier I/II table checklist for residual hydrocarbons in indoor surface soils, including considerations for dirt basement floors, foundation characteristics, and groundwater depth. It also mentions the need for further delineation due to detected concentrations of CVOCs.

how much they would be willing to pay to avoid an outage. VoLL could serve as a metric to evaluate the economic impact of power outages and for making decisions about investments in grid reliability. [159] A VoLL survey was sent to residen...

AI summary The document discusses the evaluation of new reliability metrics, including the Value of Lost Load (VoLL) and metrics like the Momentary Average Interruption Frequency Index and the Average Service Availability Index, to assess grid reliability and resiliency. Surveys were conducted with residential and commercial customers to inform these efforts, and NS Power plans to use the results in its 2027 ACE Plan application.

ight take place. He said NS Power would continue its discussions with the four RFP proponents, which involved minimal costs, until more detail was known about the impact of the subject correspondence. [205] There is no Synchronous Condense...

AI summary The text discusses NS Power's coordination with the IESO Nova Scotia regarding the Synchronous Condenser Project, noting that NS Power spent nearly $1 million on the project before realizing it may not align with the More Access to Energy Act . The Board emphasizes the need for close collaboration between NS Power, the IESO, and the Province to avoid duplication and delays.

analysis comparing the Mersey Redevelopment Project to the decommissioning and partial decommissioning options. NS Power complied with these directives in Appendix E of its 2026 ACE Plan application. [224] The total cost of the Mersey Rede...

AI summary The Mersey Redevelopment Project's total cost has been estimated at around $1.2 billion in recent ACE Plans, with construction deferred until 2031. NS Power is awaiting the outcome of the IESO Nova Scotia IRP process and is addressing environmental regulatory and Mi'kmaq concerns, particularly regarding fish passage and compliance with the modernized Fisheries Act.

Request IR-47: On page 99, NS Power states: "Over the course of the last year, NS Power has continued its work to identify and evaluate potential alternative reliability metrics." Please describe the alternative reliability metrics that NS...

AI summary The document contains three requests directed at NS Power regarding alternative reliability metrics, the 'resilience gap' concept, and a residential customer Value of Lost Load (VoLL) survey. The requests seek updates, analysis, and findings related to these topics.

Request IR-125: - a) When was transformer 96H-T1 installed, and what was its expected service life? - b) Please provide the energy output of the Ruth Falls Hydro Generating Station for each of the past five years. - c) Why can't the oil ta...

AI summary Request IR-125 includes a series of questions related to the installation and maintenance of a transformer, energy output of a hydro station, corrosion issues, risk assessments, and environmental mitigation measures. The questions are aimed at gathering detailed operational and safety information.

a level rise will be incorporated into the project design. 2. Please describe how this aligns with NS Power’s Climate Adaptation Plan. Please explain what Attachment 2 is intended to represent. 1. Please explain how the cost estimates in A...

AI summary The text includes questions regarding project design alignment with NS Power’s Climate Adaptation Plan, cost estimates in Attachment 2, blade replacement in a turbine project, and the forecast capacity and utilization factors for TUC1. It also asks about blade inspection results and spare blade procurement.

c operating benefits of holding generating units in cold reserve? 2. What are the quantified benefits of holding generating units in cold reserve rather than immediately pursuing full decommissioning? In reference to Figure 1 – 2030 Clean...

AI summary The text raises questions about the benefits of holding generating units in cold reserve, discrepancies in nameplate capacities between figures in the Clean Power Plan, and the status of the Green Choice Program procurement. It also inquires about the eligibility of certain generation resources for the 'planned unit' designation under the CER and the accuracy of commercial operation dates for wind projects under the RBP Program.

Request IR-7: - Please refer to the Application Page 38 of 782, Figure 11: Historical Value of Projects Less than $1M, - a) What is the reason for the increase in Steam projects in 2026 compared to prior years?

AI summary The document requests an explanation for the increase in Steam projects in 2026 compared to prior years, referencing Figure 11 on Application Page 38 of 782.

28 Request IR-21: 29 30 With respect to Appendix E: 31 33 32 (a) Please provide a working copy of Appendix E, Attachment 1. 35 34 (b) Please explain the differences between the NPV analysis and an EAM (p. 10, lines 26-27). 38 36 (c) If NS...

AI summary The document requests a working copy of Appendix E, an explanation of differences between NPV analysis and EAM, a complete EAM if available, and a summary of actions taken by NS Power to update its decommissioning plan for Mersey over the past two years.

rse and non-adverse weather conditions, by increasing the separation between tree lines and power lines. As confirmed in response to CA IR-24(d), the 40% estimate continues to be validated through the experience and assessment of NS Power'...

AI summary NS Power discusses its methodology for estimating tree contact risks, validated by subject matter experts and field reviews. It acknowledges the 40% estimate remains reasonable and will continue to refine it as the vegetation management program evolves. The document references the 2026 ACE Plan Hearing Transcript and related exhibits.

how much they would be willing to pay to avoid an outage. VoLL could serve as a metric to evaluate the economic impact of power outages and for making decisions about investments in grid reliability. [159] A VoLL survey was sent to residen...

AI summary The document discusses the evaluation of new reliability metrics, including the Value of Lost Load (VoLL) survey and metrics like Momentary Average Interruption Frequency Index and Average Service Availability Index, to assess grid reliability and outage impacts. NS Power is preparing a summary report of findings for the 2027 ACE Plan application.

tepayers. One would expect any private non-utility proponents who contract with the IESO Nova Scotia for energy generation, or ancillary services, to have a rate of return factored into their pricing. [168] None of the foregoing examples h...

AI summary The text discusses concerns raised by the DOE regarding the expansion of NS Power's capital program without a corresponding increase in electrical system capacity and reliability. It also touches on the integration of renewable energy and the need for improved asset management.

ight take place. He said NS Power would continue its discussions with the four RFP proponents, which involved minimal costs, until more detail was known about the impact of the subject correspondence. [205] There is no Synchronous Condense...

AI summary The document discusses the lack of a Synchronous Condenser Project before the Board and highlights the need for close coordination between NS Power, the IESO Nova Scotia, and the Province of Nova Scotia to avoid duplication of effort and delays. NS Power spent nearly $1 million on the project before realizing it may not align with the More Access to Energy Act .

NS POWER PANEL 319 Cr-ex, (Mahody) 1 this project. And the question I wanted to focus in on is 2 BY MR. MAHODY: 3 Witness panel, I'm headed to the Q. 4 Pennsylvania breaker issue. 5 If we could call up N-1, page 402, 6 please. 7 And so you...

AI summary The text references a regulatory proceeding involving Nova Scotia Power, focusing on the Pennsylvania breaker issue and the determination of risk levels associated with circuit breakers. It includes references to specific pages and Board IR-126.

NS POWER PANEL 481 Questions, (Murphy) 1 Q. So in terms of measuring the 2 effectiveness, then, are you suggesting that the 3 measurement be changing condition rating? 4 A. (Beaton) Yes, that's correct. 5 That's our primary measure. 6 Q. S...

AI summary The discussion centers on the effectiveness of a program measured by changes in condition ratings of power lines, with a focus on whether cost is considered in the evaluation. While the speaker acknowledges that cost is taken into account, there is no specific metric for cost per condition score change.

NS POWER PANEL 535 Questions, (Chair) 1 Q. Okay. And you've provided 2 updates on these two projects in the appendix and in IR 3 responses. 4 My question, and it's the same 5 question I've asked in different forums in a number of ACE 6 Pla...

AI summary The chair of the NS Power Panel 535 asks whether other energy projects, such as wind, community solar, and commercial net metering, must be in place before coal conversions can safely proceed by 2030. Pickles responds that while the goal is to be off coal by 2030, the company intends to retain the ability to burn coal if necessary.