N-12026 10-Year System Outlook Report
6 passages
). The creation of the Independent Energy System Operator of Nova Scotia (IESO, IESO Nova Scotia) has implications for the continued ownership of these filing requirements, which are described herein. NS Power and IESO Nova Scotia have bee...
AI summary The document discusses the transition of responsibilities for the Load Forecast and 10-Year System Outlook (10YSO) reports between NS Power and the newly created IESO Nova Scotia. NS Power will prepare the Load Forecast report while IESO Nova Scotia will take over the 10YSO report, avoiding duplication of efforts. The 10YSO report is an annual assessment of system capacity and resource adequacy, reflecting progress toward 80% renewable energy and the phase-out of coal by 2030.
with weather, time of day, state of charge, or program design, and therefore may not coincide with periods of resource need. As a result, energy limited resources contribute less to resource adequacy. Effective Load Carrying Capability (EL...
AI summary The text discusses Effective Load Carrying Capability (ELCC), a method used in Nova Scotia to quantify the capacity contribution of energy-limited resources. ELCC is expressed as a percentage of a resource's installed capacity and declines with increased penetration of such resources. Energy+Environmental Economics (E3) conducted ELCC studies in 2019 and 2026 as part of the Integrated Resource Plan (IRP) process.
3.2.4 Fast-Acting Generation IESO Nova Scotia has initiated a procurement process for 300 to 600 MW of fast-acting generation capacity for the province. The draft Request for Proposals (RFP) and Tolling Agreement was made available for pro...
AI summary IESO Nova Scotia has initiated a procurement process for 300 to 600 MW of fast-acting generation to support the province's clean energy transition. This capacity is critical for maintaining supply reliability as renewable energy penetration increases and peak demand grows. The 2026 10-Year Outlook Resource Plan includes 450 MW of fast-acting generation, with additional needs identified by 2035/2036.
3.2.5 Battery Energy Storage Systems The Government of Nova Scotia's Clean Power Plan calls for 300 to 400 MW of battery storage capacity to be added by 2030. In 2025, 100 MW of BESS was added to the Nova Scotia system (referenced in [Tabl...
AI summary The Clean Power Plan aims to add 300 to 400 MW of battery storage by 2030. In 2025, 100 MW of BESS was added, with 50 MW planned for 2026. IESO Nova Scotia has included 250 MW of BESS in the 10-Year Outlook Resource Plan and will continue studying optimal storage additions in the 2026 IRP.
Firm Resource Additions For energy limited resource additions (wind, solar, battery, demand response), the firm capacity contributions reflect the ELCC rather than installed capacity as discussed in Section [3.1.](#page-7-2) Wind projects...
AI summary The document discusses firm resource additions, focusing on wind, solar, battery, and demand response projects. It highlights the use of Effective Load Carrying Capacity (ELCC) for firm capacity contributions and mentions specific projects with established procurement timelines, as well as future procurements outlined in the 2023 Evergreen IRP.
Thermal Retirement Schedule The thermal retirement schedule complies with the 2030 coal phase-out targets. Previous 10-year load and resource outlooks presented retirements of Trenton 5 and Lingan 2 in Winter 2027/2028. Based on the curren...
AI summary The thermal retirement schedule aligns with the 2030 coal phase-out targets. Previous retirements of Trenton 5 and Lingan 2 were planned for Winter 2027/2028, but IESO Nova Scotia now expects these units to remain in service until Winter 2029/2030 to maintain adequate Planning Reserve Margin (PRM) until new fast-acting generation is operational.