Topic:"Energy Efficiency Resource Assessment Model" in M11764

1 • An updated list of Queued System Impact Studies in Section 4.0. 2 • A summary of environmental and emissions regulatory requirements, as well as forecast 3 compliance in Section 5.0. Section 5.0 also includes projections of the level o...

AI summary The document outlines updates to system impact studies, environmental compliance requirements, renewable energy projections, and transmission planning. It references NS Power's Evergreen IRP update, the Province's 2030 Clean Power Plan, and NS Power's The Path to 2030 report aligned with 2030 decarbonization goals, citing regulatory decisions M11017 and M11458.

lation that could trigger a significant shift in the utilization 22 forecast to provide the most economic system dispatch for customers. 23 24 3.3.1 Evolution of the Energy Mix in Nova Scotia 25 NS Power’s energy production mix has undergo...

AI summary NS Power’s energy production mix has evolved significantly over the last 15 years with an increased reliance on variable renewable resources like wind. However, these resources provide less firm capacity than conventional generation, leading to continued reliance on conventional units for firm capacity and ancillary services.

2 3 The UF parameters are assessed to more completely describe the operational outlook for the steam 4 fleet and direct investment planning. The four parameters are described below. 5 6 • Capacity factor reflects the energy production cont...

AI summary The text discusses the importance of four parameters—capacity factor, service hours, unit cycling, and utilization factor—in assessing the operational outlook for the steam fleet and investment planning. It explains how these factors influence equipment reliability and maintenance strategies, particularly with the integration of variable-intermittent generation.

1 6.3 Capacity Contribution of Renewable Resources in Nova Scotia 2 3 Due to their variability, renewable energy resources such as wind and solar are not always available 4 to contribute during peak demand hours. The Effective Load Carryin...

AI summary The document discusses the capacity contribution of renewable resources in Nova Scotia, focusing on the Effective Load Carrying Capability (ELCC) of wind and solar energy. The NSUARB directed NS Power to conduct a Capacity Study to calculate ELCC values for existing and potential new wind resources, with results showing a declining marginal ELCC as more wind is added to the system.

Winter Annual Wind Cumulative Marginal ELCC % Firm Capacity Period Capacity Added Capacity of Wind Applied to New Wind Contribution from (MW) (MW) Capacity New Wind (MW) 2025/2026 90 701 10% 9 2026/2027 534 1235 10% 53.4 2007/2028 0 1235 2...

AI summary The document discusses the marginal ELCC contributions of wind capacity additions over several years and notes the application of different ELCC percentages. It also mentions the ELCC for hydro sites, specifically the Mersey Hydro system, and highlights the limited ELCC for solar due to poor correlation with peak load hours. A letter from the NSUARB to NS Power discusses the importance of battery energy storage ELCC profiles in modeling.

24 Page 57 of 67 2024 10-Year System Outlook Non-Confidential

AI summary This document presents the 2024 10-Year System Outlook, a non-confidential report outlining the long-term planning and forecasting for the electricity system in Nova Scotia.

1 (b) As part of its 2020 IRP Action Plan, NS Power completed and published The Economics 2 of Electrification in Nova Scotia. 1 This report identified the potential for a Hybrid Peak 3 scenario in Nova Scotia and developed an estimate of...

AI summary NS Power's 2020 IRP Action Plan included a Hybrid Peak scenario, modeled in the 2023 Evergreen IRP for potential cost savings. The program was incorporated into the Province's Clean Power Plan and NS Power's 2024 ACE Plan, with alignment on accountability. Net Zero Atlantic will conduct a Hybrid Peak study in 2024 for the Department of Natural Resources and Renewables.

1 Request IR-18: 2 3 On page 9, NS Power notes that its long-term peak forecast is reduced in part due to the 4 "adoption of hybrid heating scenario in alignment with Nova Scotia's Clean Power Plan and 5 NS Power's Evergreen IRP." Please e...

AI summary NS Power notes that its long-term peak forecast reduction is partly due to the adoption of a hybrid heating scenario aligned with the Clean Power Plan and the Evergreen IRP. The hybrid scenario's impact on system peak is detailed in a table from the 2024 Load Forecast Report, showing reductions starting in 2026. However, a breakdown by fuel type is not available.