Topic:"Electricity Generation" in M12247

2025 Evergreen IRP Action Plan and Roadmap Update (NSEB M12247) NSPI Responses to Consumer Advocate Information Requests 1 Request IR-2: 2 3 RE: Action Plan Item 2b 4 5 Please provide a description of data that NS Power monitors, or antici...

AI summary NSPI responds to a request for information on data monitored to understand electrification impacts. The response references the 2025 IRP Action Plan Update and mentions the use of annual load forecasts, SCADA, and AMI data for monitoring. Some data, like interconnection requests, are accessible on the NS Power Oasis site.

NON-CONFIDENTIAL Request IR-2: Please provide the Renewable Electricity Standard (RES) contributions by renewable energy source, and the corresponding installed capacity by renewable energy source, for the year 2024. And, please provide th...

AI summary The document outlines requests and responses regarding the Renewable Electricity Standard (RES) contributions and thermal asset generation profiles for 2024, 2030, and 2035. The responses reference the 2025 10-Year System Outlook report and the Evergreen IRP scenario for compliance forecasts and data sources.

NON-CONFIDENTIAL 1 Request IR-1: 2 3 For the years 2024, 2030 and 2035, please share the total installed generation capacity, and 4 hourly supply-mix, on the: i) winter peak day, and the day prior and following; and on the 5 ii) day of the...

AI summary The request (IR-1) asks for generation capacity and supply-mix data for 2024, 2030, and 2035, including renewable curtailment and demand-side measures. The response notes the Evergreen IRP Model did not model exports, cites the 2023 Load Forecast Report for DSM values, and attributes incomplete data to a cyber incident affecting NS Power's IT systems. Partial data is provided in Attachment 1 and the NS-NB Reliability Intertie model.

Peak Load Hour 2035-01-09 18:00 Installed Capacity (MW) Gas - Gas - New CTs Gas - Domestic Maritime HFO - Market Renewables Date/Time Coal Existing & Recips Conversion Diesel CTs Hydro Tidal Biomass Wind Solar Link Blocks Conversion Hydrog...

AI summary The document presents a table of installed capacity (MW) across various energy sources at different times on January 9, 2035, showing fluctuations in generation from gas, hydro, biomass, wind, solar, and imports, with peak load occurring at 18:00.

NON-CONFIDENTIAL 1 Request IR-5: 2 3 What factors, related to the technical capabilities of an energy resource, affect its selection 4 by the model? For example, does a resource's ramp-rate, or capability to provide inertia 5 support affec...

AI summary The response to Request IR-5 outlines that factors affecting the selection of an energy resource in a model include technical capabilities such as ramp rate, inertia, and storage capacity, as well as economic factors like capital cost, fuel price, and emissions cost. These factors vary by resource type and influence dispatch order.

NON-CONFIDENTIAL 1 Request IR-4: 2 3 Refer to Exhibit N-1, 2025 Evergreen IRP, page 13 of 42, regarding the provisions for 4 banking and pooling emissions. 5 6 Please describe how these rules have been, or will be, incorporated as constrai...

AI summary The text discusses the incorporation of emissions banking and pooling rules into NS Power's IRP planning models, and the use of a proxy for CER rules in the 2023 Evergreen IRP. It mentions that pooling aligns with CER assumptions, while banking has not yet been modeled. A proxy annual performance standard of 50 tonnes CO2/GWh was used in the IRP.

1 Request IR-4: 2 3 Reference: Clean Electricity Regulations, slides 8-16. 4 5 (a) Describe if and how the CER treatment of new versus planned units will impact future 6 actions related to near-term procurement of thermal generators. 7 8 (...

AI summary The text discusses responses to requests regarding the Clean Electricity Regulations, fuel conversions, and fast-acting generation. NS Power indicates that procurement of thermal units has been transferred to NSIESO, there have been no updates on fuel conversions, and the need for 600 MW of fast-acting generation is based on modeling scenarios and decarbonization goals.

Generation Resource MW Thermal 1392 CT's 226 Hydro 168 Wind 33 Tidal 0 Biomass 56 Maritime Link 150 Maritime Link Imports 7 Other Imports 51 Battery 0 System Peak (MW) and Time (HE) February 21 @ 9AM

AI summary The table lists Nova Scotia's electricity generation resources with their capacities in MW, including Thermal, Hydro, Wind, Biomass, and imports. It also notes the system peak on February 21 at 9AM. The data highlights the distribution of power sources and system load.

Peak Load Hour 1/9/2035 18:00 Installed Capacity (MW) 2035 Coal Gas - Existing Gas - New CTs & Recips Gas - Conversion Diesel CTs Domestic Hydro Tidal Biomass Wind Solar Maritime Link Blocks HFO - Conversion Hydrogen Battery Market Imports...

AI summary The document presents a peak load hour analysis for January 9, 2035, at 18:00, showing installed capacity and generation data from various energy sources, including coal, gas, hydro, wind, solar, and others. It highlights the contribution of different energy sources during specific time intervals and includes curtailed renewable energy data.

Request IR-7: - On page 39, NS Power provided the following statements: - Today manufactures can support between 5% and 35% hydrogen blending. - Current models would need to be retrofitted to operate using 100% hydrogen as a fuel source. •...

AI summary NS Power states current models require retrofitting for 100% hydrogen operation but not 35% blending. The 10% capital cost adder for hydrogen-capable turbines aligns with the Evergreen IRP. Questions seek clarification on retrofit needs for 35% blending and the 10% assumption's basis (hydrogen vs. diesel CT costs).

Request IR-6: Reference: The Path to 2030 – 2024 Update, page 35, fast-acting generation. a. State the current megawatt need and year of need for new fast-acting generation that is included in the current action plan and the basis for that...

AI summary Request IR-6 seeks clarification on the current megawatt requirement and timeline for new fast-acting generation included in the Path to 2030 – 2024 Update. The request, filed on June 24, 2025, asks for the basis of this need and timing, referencing page 35 of the document.

13 Request IR-5: - 17 (a) Please provide an update on the status of the fast-acting generation capacity. - 19 (b) What is the role of the NSIESO in planning and procuring the fast-acting generation 20 resources? - 22 (c) Is the fast-acting...

AI summary Request IR-5 seeks updates on fast-acting generation capacity status, NSIESO's role in planning/procuring resources, delays in timelines, gas turbine contract delivery periods, market assessments, and NS Power's evaluation of BESS vs fast-acting generation investments. Questions focus on scheduling, procurement processes, market dynamics, and infrastructure planning.

2.BACKGROUND On April 30, 2025, NSPI filed its 2025 Evergreen IRP Action Plan and Roadmap Update. In this update, NSPI provided an update on electricity planning environment changes, an update on the Action Plan and Roadmap items to date,...

AI summary NSPI filed its 2025 Evergreen IRP Action Plan Update, referencing the Path to 2030 document and relying on prior modeling. The update includes resource pathway planning, electrification strategies, wind procurement, battery storage, and demand response. Resource trajectories are updated based on load forecasts from 2022–2025, with no new capacity modeling conducted.