N-12026 10-Year System Outlook Report
6 passages
3.1 Existing Generation Resources The Nova Scotia generation fleet comprises a diverse mix of thermal, renewable, and energy storage resources. Thermal units operate on coal, petroleum coke, light and heavy fuel oil, and natural gas; renew...
AI summary Nova Scotia's generation fleet includes thermal, renewable, and energy storage resources, with 100 MW of Battery Energy Storage Systems added in 2025. Resource adequacy depends on the type of resource, with thermal and hydro units providing more reliable capacity than energy-limited resources like wind, solar, and storage.
6 Nova Scotia Effective Load Carrying Capability Study, Energy+Environmental Economics, June 2026. Generation Resource Fuel Type Owner Capacity (MW) ELCC (%) Firm Capacity (MW) Hydro Avon Hydro Nova Scotia Power 6.8 95% 6.4 Bear River Syst...
AI summary The document presents a table detailing various generation resources in Nova Scotia, including their fuel types, owners, capacities, effective load carrying capability (ELCC), and firm capacities. The majority of the resources are hydroelectric, owned by Nova Scotia Power, with some steam-based resources also listed.
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.
Table 3: Additions and Retirements in the 10-Year System Outlook Resource Plan Additions Retirements Winter Generation Type Name Installed Capacity (MW) Firm Capacity (MW) Name Retired Capacity (MW) Wind Rate Base Procurement 273 54.5 Wind...
AI summary Table 3 outlines the additions and retirements in the 10-Year System Outlook Resource Plan, detailing wind, solar, battery storage, and other generation and demand response resources for various years from 2026/2027 to 2035/2036, along with retirements such as coal-to-gas conversions and coal plants.
Thermal Conversions Thermal conversions are reflected as firm capacity additions in the year they come into service: the Coal-to-Gas conversion (150 MW) represents the Point Tupper 2 conversion in 2028/2029, and Coal-to-HFO (459 MW) repres...
AI summary The document discusses thermal conversions, specifically the Coal-to-Gas and Coal-to-HFO conversions, which are reflected as firm capacity additions in the years they come into service, with the Coal-to-Gas conversion (150 MW) set for 2028/2029 and the Coal-to-HFO conversion (459 MW) covering Lingan units 1, 3, and 4.
Winter 2026/ 2027 2027/ 2028 2028/ 2029 2029/ 2030 2030/ 2031 2031/ 2032 2032/ 2033 2033/ 2034 2034/ 2035 2035/ 2036 1 Load Forecast 2 System Peak (with DSM) 2,497 2,526 2,549 2,563 2,593 2,620 2,652 2,689 2,730 2,765 3 Interruptible Load...
AI summary The table presents a 10-Year System Outlook (10YSO) with load forecasts, system peak, required capacity, existing and new firm resources, retirements, and reserve margin percentages for various years from 2026/2027 to 2035/2036. It outlines the capacity additions and retirements, including wind, storage, and coal-to-gas conversions, along with the resulting reserve margins.
N-4IESO (NSEB) RIR 1 to 19
6 passages
NON-CONFIDENTIAL 1 – Request IR 2 - Referencing Table 2: 2026 Nova Scotia Generation Resources, pdf page 8.
AI summary The document references Table 2 from page 8 of the 2026 Nova Scotia Generation Resources PDF, which outlines generation resources for the year 2026.
- a) Please explain whether all generation facilities listed in the table are fully functional or whether any facilities are subject to planned or unplanned maintenance or service work that may affect resource planning and system operation...
AI summary The text requests information about the functionality of generation facilities, the duration of any unavailability, and the resources available to compensate for any resulting shortage.
Response IR - 2 a-c) The 10-Year System Outlook assumes all resources listed in Table 2 are available during the Winter period, when the system's peak is experienced, unless explicitly stated otherwise in the report. Planned unit maintenan...
AI summary The 10-Year System Outlook assumes all resources in Table 2 are available during winter peak periods, unless otherwise noted. Planned maintenance is typically scheduled outside of peak months, and no significant outages are expected to impact capacity during winter periods covered in the report.
Request IR – 5 - Pdf page 13 of the report states that the fast-acting generation requirement changed from 600 - MW to 450 MW compared to the last NS Power Integrated Resource Plan (IRP). Please explain - what changes in conditions resulte...
AI summary The fast-acting generation requirement was reduced from 600 MW to 450 MW due to an agreement with NB Power for a 100 MW firm import from their RIGS project. This change was influenced by the 2023 Evergreen IRP and will be further refined in the 2026 IRP.
Response IR - 6 a) IESO Nova Scotia is currently focused on meeting the Province's legislated requirement to phase out coal generation and meeting 80% renewable electricity generation by 2030. This focus includes advancing a request for pr...
AI summary IESO Nova Scotia is focused on phasing out coal and achieving 80% renewable electricity generation by 2030. They are advancing a request for proposals for 300 MW to 600 MW of fast-acting generation, with a closing date in January 2027. If the 2030 target is not achievable, alternative reliability plans may be considered, including fuel switching or equivalency agreements.
Response IR - 10 - a) IESO Nova Scotia does not have firm start and end dates for the conversion projects but understands that the identified conversion projects can be completed in between Winter periods. Based on the 2023 Evergreen IRP S...
AI summary IESO Nova Scotia outlines the anticipated timeline for conversion projects, noting that they will occur outside of winter periods and will be refined in the 2026 IRP. The projects are expected to be completed before winter periods, reducing the need for replacement energy and capacity.
N-7IESO (SBA) RIR 1 to 22
6 passages
NON-CONFIDENTIAL 1 – Request IR 4 - Refer to the 2026 Report Section 3 Existing Generation Resources, pages 7-8.
AI summary The text references the 2026 Report Section 3 on Existing Generation Resources, pages 7-8, indicating a request for information related to generation resources.
resource. For resource additions over the ten year horizon, the marginal ELCC value is Nova Scotia Independent Energy System Operator (IESO Nova Scotia) Responses to Small Business Advocate (SBA) Information Requests
AI summary The document outlines the Nova Scotia Independent Energy System Operator's (IESO Nova Scotia) responses to information requests from the Small Business Advocate (SBA) regarding resource additions over a ten-year horizon and the marginal ELCC value.
- 11 below. Project ID Applicant Generation Capacity Location Name Type (MW) 271 Windmill Biogas 0.5 Shubenacadie Holsteins Inc 310 Courthouse Biogas 0.5 Gore Hill Farm 361 TE Boyle Farm Biogas 0.5 Tracadie and Forestry Limited 363 Dalhous...
AI summary The document lists several small-scale energy generation projects in Nova Scotia, including biogas and biomass facilities. Each project includes details such as project ID, applicant, generation type, capacity, and location.
Request IR – 12 1 5 6 7 8 9 1011 1415 16 17 18 19 20 21 - 2 Refer to the 2026 Report Section 3 Existing Generation Resources, page 15, Table 3: Additions - and Retirements in the 10-Year System Outlook Resource Plan, and the 2025 Report Se...
AI summary The request seeks a reconciliation of additions and retirements in generation resources between the 2025 and 2026 Reports, including differences in resource type, capacity, timing, and categorization, as well as drivers of changes and the status of resources not carried forward.
Response IR - 16 - a, b) IESO Nova Scotia continues to advance the projects and provide the necessary documentation to Environment and Climate Change Canada to enable the new fast-acting generation units (up to 600MW at up to two sites) to...
AI summary IESO Nova Scotia is working with Environment and Climate Change Canada to designate new fast-acting generation units as 'planned units' under the Clean Electricity Regulations. The outcome of this designation will affect operational flexibility and customer costs but will not impact the resource plan if the units are not designated as planned units.
Request IR – 22 - The 2025 Report included several sections that do not appear in the 2026 Report, including but - not limited to various sections under "Generation Resources", "Resource Adequacy", - "Transmission Planning", "Transmission...
AI summary The 2025 Report contains sections not present in the 2026 Report, including 'Generation Resources', 'Resource Adequacy', 'Transmission Planning', 'Transmission Development', and 'Clean Energy Regulations'. The request asks for an explanation of their omission and where equivalent information can be found, including whether NS Power or IESO NS now handles these topics.
103608NSEB (IESO) RIR 1 to 19
6 passages
Request IR-2: - Referencing Table 2: 2026 Nova Scotia Generation Resources, pdf page 8. - a) Please explain whether all generation facilities listed in the table are fully functional or whether any facilities are subject to planned or unpl...
AI summary The request seeks clarification on the status of Nova Scotia's generation facilities in 2026, including their functionality, any planned or unplanned outages, the duration of unavailability, and available resources to compensate for any shortages.
Request IR-6: - If the new 450 MW of fast-acting combustion turbines generating capacity is not in service by - 2030, please describe IESO Nova Scotia's specific plan to meet projected system load, as well - as maintain system reliability...
AI summary The document requests IESO Nova Scotia to outline a specific plan to meet projected system load and maintain reliability if the new 450 MW of fast-acting combustion turbines are not operational by 2030. It also asks how this plan will align with NS Power's requirements to phase out coal and achieve 80% renewables by 2030.
Request IR-10: Referencing Load and Resources Overview, pdf page 17 states: Thermal conversions are reflected as firm capacity additions in the year they come into service: the Coal-to-Gas conversion (150 MW) represents the Point Tupper 2...
AI summary The document requests information on the start and end dates for the Coal-to-Gas and Coal-to-HFO conversion projects, as well as the alternative resources that will replace their capacity and energy during the conversion process.
Request IR-13: Please convert the existing Figures 1 and 2 graphs into a table that indicate firm capacity changes for 2027 through 2036, including detailed resource types and capacities.
AI summary The request asks to convert existing graphs (Figures 1 and 2) into a table showing firm capacity changes from 2027 to 2036, with detailed resource types and capacities.
- For each project listed: - a) identify whether the large load is commercial or industrial; - b) describe the predominant type of load proposed for each facility; - c) identify the proposed interconnection point (i.e., transmission line o...
AI summary The text outlines requirements for identifying and describing details of large load projects, including their type, load characteristics, interconnection points, and anticipated in-service dates.
Request IR-18: - Pdf page 25 of the report notes that at present, five synchronous condensers are required by 2030 to accommodate expected new generation and BESS resources. - a) What is the estimated capital cost associated with each of t...
AI summary The document requests information regarding the capital costs, lead times, service schedules, and contingency plans for five synchronous condensers required by 2030 to support new generation and BESS resources in Nova Scotia.
103620SBA (IESO) IR 1 to 22
5 passages
- average annual decrease of 0.2%.[1](#page-1-0) a. Please provide a comparison of the 2026 Load Forecast to the 2025 Load Forecast for both energy (NSR) and system peak demand. - b. Please identify the key drivers responsible for the chan...
AI summary The text requests a comparison of the 2026 Load Forecast to the 2025 Load Forecast, identifies key drivers of the shift from declining to growing energy forecasts, and asks for needed changes in resource buildout to accommodate increased load.
Request IR-08 Refer to the 2026 Report Section 3 – Existing Generation Resources, page 15, Table 3: Additions and Retirements in the 10-Year System Outlook Resource Plan. There are multiple winters – specifically 2027/2028-2028/2029 and 20...
AI summary The document requests clarification on the methodology used to calculate Diversity Credit firm capacity values in the 10-Year System Outlook Resource Plan and the basis for the delivery timing assumption of a 100 MW firm import from NB Power. It also asks about alternative plans if the import does not materialize.
Request IR-10 Refer to the 2026 Report Section 3 – Existing Generation Resources, page 15, Table 3: Additions and Retirements in the 10-Year System Outlook Resource Plan, and the Demand Response additions. The Demand Response ELCC values v...
AI summary The document requests clarification on the discrepancy between Demand Response ELCC values in two different tables from the 2026 Report. It highlights significant variations in ELCC values across different time horizons and asks for an explanation of the drivers behind these changes and whether the values represent marginal or average ELCC.
Request IR-13 Refer to the 2026 Report Section 3 – Existing Generation Resources, page 15, Table 3: Additions and Retirements in the 10-Year System Outlook Resource Plan, and the implied marginal wind ELCC values reflected within the table...
AI summary Request IR-13 asks for clarification on marginal wind ELCC values from the 2026 Report, consistency with the June 2026 E3 ELCC study, and the wind capacity threshold where ELCC declines from 20% to 5%.
Request IR-22 The 2025 Report included several sections that do not appear in the 2026 Report, including but not limited to various sections under "Generation Resources", "Resource Adequacy", "Transmission Planning", "Transmission Developm...
AI summary The 2025 Report included sections not present in the 2026 Report, such as 'Generation Resources' and 'Clean Energy Regulations'. The request asks for an explanation of why these sections were omitted and where equivalent information can now be found, including whether responsibility for these topics has shifted to NS Power or IESO-NS.