Topic:"System Reliability" in M12932

Summary of Deliverable / Commitment Detail & Context Source 1 Initial Due by / Completed on Status Refer to System peaking and TVP role In response to the Energy Storage Canada comments, NS Power will: Discuss why NS Power still views the...

AI summary NS Power will address Energy Storage Canada's comments regarding the winter evening peak and the role of Time-Varying Pricing (TVP) in meeting load and reserve requirements through demand side flexibility and reducing daily load variability. A future technical session is planned for 2026.

31 M11823 – Board Decision and Order, 316514, page 5. October 31, 2024. Period of Low Forecast System Margin During Scheduled Critical Peak Event Date Hour Start Yes / Cancelled / No 2024-12-04 17:00 2024-12-04 18:00 2024-12-04 19:00 Yes 2...

AI summary The document lists dates and times for periods of low forecast system margin during scheduled critical peak events, indicating when these events occurred or were planned for in 2024 and early 2025.

Technical Session 3 (continued) – anticipated late-April Summary of 2024/25 Areas of Focus & Board Directives Type Items to be Discussed/Reviewed 6.0 – Review of System Planning Related Values • (6.1) review of system planning related valu...

AI summary The document outlines the 2024/25 focus areas for the Board, including a review of system planning values related to Time-Varying Pricing (TVP), such as avoided costs and Effective Load Carrying Capability (ELCC). It discusses the alignment of TVP pricing with avoided costs and the implications of system margin forecasts and CPP events in the Year 4 report.

Stakeholder Comment NS Power Response Energy Storage Canada (ESC) Draft 2024/25 Areas of Focus Work Plan (3/5) "Examine customers' correlation with system peaks by rate class." ESC Comment: • In addition to system peaks, would be valuable...

AI summary Energy Storage Canada (ESC) suggests examining the timing of system peaks and their potential changes in the future. NS Power agrees and has revised the 2024/25 Areas of Focus Work Plan to include a discussion on system peaks as part of Technical Session 3.

Coincidence of Critical Peak Events and System Margin In its Decision and Order on the Year Three (2023/24) Evaluation Report (Year Three Report) in M11823, the Board provided: NS Power agreed with Synapse that system margin forecasts may...

AI summary The document discusses the relationship between system margin forecasts and Critical Peak Events (CPP) during the 2024/25 Winter Season. It notes that system margin forecasts during CPP events were significantly lower than during other peak hours and directs NS Power to analyze this correlation further in the Year 4 report.

31 M11823 – Board Decision and Order, 316514, page 5. October 31, 2024. Period of Low Forecast System Margin During Scheduled Critical Peak Event Date Hour Start Yes / Cancelled / No 2024-12-04 17:00 2024-12-04 18:00 2024-12-04 19:00 Yes 2...

AI summary The document lists dates and times during which scheduled critical peak events occurred, indicating periods of low forecast system margin. These events are marked with 'Yes' in the 'Yes / Cancelled / No' column, showing when demand management actions were required.

31 M11823 – Board Decision and Order, 316514, page 5. October 31, 2024. Period of Low Forecast System Margin During Scheduled Critical Peak Event Date Hour Start Yes / Cancelled / No 2024-12-04 17:00 2024-12-04 18:00 2024-12-04 19:00 Yes 2...

AI summary The document lists dates and times for periods of low forecast system margin during scheduled critical peak events, indicating when these events were confirmed (Yes) or not (blank). This information is relevant for managing electricity demand during high usage periods.

TVP Pilot Benefits Provides customers directional price signals on electricity costs. Gives customers choice in how and when they consume energy. Customers are empowered to decrease their bills by shifting their use of electricity when it...

AI summary The TVP Pilot Benefits section outlines how Time-Varying Pricing (TVP) provides customers with price signals to manage their electricity use, offering them the ability to shift consumption to off-peak times. This results in lower bills, reduced need for infrastructure investment, and system savings through decreased fuel, power purchase costs, and carbon emissions.

Items to be Discussed at Future Technical Sessions and/or provided in the Year Four (2024/25) Evaluation Report Summary of 2024/25 Areas of Focus & Board Directives – Updated for 2026/27 Type Items to be Discussed/Reviewed 6.0 – Review of...

AI summary The document outlines items to be discussed in future technical sessions and included in the Year Four (2024/25) Evaluation Report, focusing on the review of system planning values related to Time-Varying Pricing (TVP) and Critical Peak Pricing (CPP). Topics include avoided cost analysis, Effective Load Carrying Capability (ELCC), system margin forecasts, and the role of TVP in meeting load and reserve requirements.

Technical Session 2 Topics Technical Session 2 is to be scheduled for Fall 2026, and is expected to cover the following: - Recommended EM&V refinements - Review of System Planning related values applicable to TVP - Updated ELCC study resul...

AI summary Technical Session 2, scheduled for Fall 2026, will address EM&V refinements, TVP-related system planning values, ELCC study results, system load impacts, avoided costs application, TVP pricing alignment, and an updated rate design scorecard.

Request IR-1: - The Board's decision in matter M11823 directed Nova Scotia Power (NS Power) to provide an - analysis of the corresponding system margin forecasts and Critical Peak Pricing (CPP) events in - the Year 4 report. In Appendix A...

AI summary The Board's decision in matter M11823 requested Nova Scotia Power (NS Power) to provide an analysis of system margin forecasts and Critical Peak Pricing (CPP) events in the Year 4 report. NS Power provided a table identifying dates and times of low forecast system margin and whether a CPP event was scheduled, but the table lacks forecast system margin values.

Request IR-10: Reference: M12932 N-1 TVP Evaluation Report, Appendix A, p. 148, quoting the Board's Decision in M12249: "… the Board notes that E1 should be fully prepared to address the questions raised in this proceeding about potential...

AI summary The Board has directed E1 to address potential overlap between its DSM Plan and NS Power's Critical Peak Pricing Program, and to explain how each program targets constrained areas of the grid. It also expects NS Power to cooperate with E1 in this exploration. The request asks for an analysis of equity and rate-impact consequences of funding demand response through DSM charges versus tariff design.