Topic:"Planned Outage" in M11764

reserve is maintained to manage the 28 variability of customer load and generation. 29 45 https://www.npcc.org/program-areas/standards-and-criteria/regional-criteria/directories DATE FILED: June 27, 2024 Page 44 of 67 2024 10-Year System O...

AI summary The Planning Reserve Margin (PRM) is established to ensure sufficient resources are available to reliably serve firm customers. NS Power must comply with NPCC reliability criteria approved by the NSUARB, which require probabilistic evaluations to ensure loss of load expectation does not exceed 0.1 days per year.

1 NS Power supports updating the capacity study prior to the next IRP analysis, with the focus of 2 the update being an examination of the interactive effect of the identified clean resources (wind, 3 solar, battery energy storage, and dem...

AI summary NS Power supports updating the capacity study prior to the next Integrated Resource Plan (IRP) analysis, focusing on the interactive effects of clean resources. Municipal load in certain areas is served by a wind farm not included in NS Power’s sourced wind generation. Due to increased firm peak demand and delays in the Wreck Cove LEM Project, NS Power will not meet the 20% PRM target for the 2024/2025 Winter period and will implement strategies like keeping Lingan 2 in cold reserve.

1 Request IR-17: 2 3 In Section 6.2, Planning Reserve Criteria, NS Power quoted a portion of the NPCC reliability 4 criteria regarding probabilistic evaluation of resource adequacy and various factors that 5 need to be considered in that e...

AI summary NS Power states it has sufficient capacity to meet winter peak demand in 2024/2025, including 239 MW of reserve capacity, and expresses confidence in meeting demand during normal conditions. It also mentions that planning reserve margins are designed to handle abnormal situations such as unplanned outages or lower renewable generation.

2024 10-Year System Outlook Report (NSUARB M11764) NSPI Responses to NSUARB Information Requests NON-CONFIDENTIAL 1 at peak in a single contingency scenario reflecting an unplanned outage to a 150 MW 2 generating unit. 3 4 (b) NS Power ant...

AI summary NS Power anticipates potential interruptions to interruptible customers during periods of high demand and low renewable generation, but not to firm customers. The company will manage its thermal fleet using asset management methodologies to ensure reliability, particularly during winter months, and may increase investment in certain units like Lingan Unit 2 if needed.