N-3NSPI (Synapse) RIR 1 to 65
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Request IR-2: - Page 4 of the Reliability Plan states NS Power "has responded with $1.8 billion in system - infrastructure investments over that period [10 years]." Please provide an overview of these - investments by category of expenditu...
AI summary The response to Request IR-2 indicates that NS Power has not conducted a detailed project-by-project review to categorize the $1.8 billion in infrastructure investments over 10 years by expenditure type, such as reconductoring or structure replacements.
- that shows the $1.8 billion broken out by Distribution, Transmission and Vegetation Management. Year Transmission Distribution Vegetation Management Total 2025 1,610,994 5,627,705 552,449 2.92 10.19 Year CI CHI Customer Avg SAIFI SAIDI 2...
AI summary The document presents financial breakdowns and performance metrics for Nova Scotia Power, including capital expenditures across Distribution, Transmission, and Vegetation Management, and reliability indicators such as SAIDI and SAIFI for the years 2015 to 2025. A request is made for detailed data on system outages, with a response referring to an attachment containing the requested information.
2 As shown in [Figure 1](#page-182-0) below, NS Power's Plan includes approximately $1.3 billion of investment 3 in the 2025-2029 period with a commitment to $206 million of investment in 2025 and $234 4 million in 2026. 1 5 7 10 14 18
AI summary The text outlines NS Power's investment plan for the 2025-2029 period, with specific allocations of $206 million in 2025 and $234 million in 2026, totaling approximately $1.3 billion.
1 October 31, there is a 53 percent reduction in customer interruptions and a 29 percent reduction in 2 customer hours of interruption due to device failure in 2025 over 2023 levels. 3 4 The benefits of the program and the impact on the re...
AI summary The document highlights a 53% reduction in customer interruptions and a 29% reduction in customer hours of interruption due to device failure in 2025 compared to 2023. NS Power acknowledges the need for stakeholder reassurance regarding the effectiveness of reliability investments and agrees with the NSEB and stakeholders on balancing reliability and affordability. The Board directed NS Power to provide annual updates on the progress of its Five-Year Reliability Plan.
5 2024-2029 Forecast Investment: $487 million 2 4 7 10 16 - 6 2025 Anticipated Year End Investment: $81 million - 8 NS Power continues to replace and upgrade aging distribution infrastructure across Nova Scotia. - 9 This work can be groupe...
AI summary NS Power plans to invest $487 million from 2024 to 2029, with $81 million anticipated for 2025, focusing on replacing aging infrastructure, expanding protective devices, and ensuring compliance with environmental standards.
18 Updated Overhead Standards 20 NS Power has updated its overhead distribution design standards to align with the current CSA 21 C22.3 overhead line standards. In the Board's decision on the 2025 Annual Capital Expenditure 22 (ACE) Plan (...
AI summary NS Power has updated its overhead distribution design standards to align with CSA C22.3 standards. The Board directed monitoring of upgraded poles and relocation of distribution lines to roadside locations to improve reliability and reduce outages. Progress on these initiatives has exceeded initial targets.
3 These investments are part of NS Power's continued commitment to maintaining and 4 strengthening the transmission system across the province. Through asset replacement and 5 upgrade projects, steel tower refurbishment program, including...
AI summary NS Power is investing in infrastructure upgrades, including asset replacement, steel tower refurbishment, and wood pole retreatment, to ensure long-term system reliability. These efforts are part of the 2025 ACE Plan and are illustrated in Figure 25.
4 5.3 Substation Upgrades and Replacements 6 2025-2029 Forecast Investment: $233 million 7 2025 Anticipated Year End Investment: 38.8 million 9 In 2025, NS Power continues to implement a range of initiatives targeting substations, supporti...
AI summary NS Power is investing $233 million from 2025 to 2029 for substation upgrades and replacements, including transformer replacements at multiple locations and the completion of the Mount Uniacke substation to improve system reliability and capacity.
- 3 2026 is year two of the Five-year Reliability Plan. NS Power has committed to an overall - 4 reliability investment of $234 million in 2026 (please refer to [Figure](#page-24-0) 30 and [Figure](#page-24-1) 31 ), building - 5 upon the $...
AI summary The text discusses the second year of the Five-Year Reliability Plan, with NS Power committing to a $234 million investment in reliability improvements for 2026, building on previous investments of $206 million in 2025 and an average of over $185 million annually in the prior five years.
18 7.1.1 Distribution Corridor Widening with Managed Rights-of-Way (ROW) 20 2026 Forecast Investment: $13.2 million 22 In 2026, NS Power plans to complete approximately 293 kilometers of distribution corridor 23 widening within areas that...
AI summary In 2026, NS Power plans to invest $13.2 million to complete 293 kilometers of distribution corridor widening within existing right-of-way areas, as outlined in a regional breakdown and forecasted kilometers in a referenced figure.
8 7.2.1 Distribution System Equipment Upgrades and Replacements 10 2026 Forecast Investment: $83.9 million
AI summary The document outlines a forecast investment of $83.9 million for distribution system equipment upgrades and replacements in 2026.
4 7.2.3 Substation Upgrades and Replacements 6 2026 Forecast Investment: $52.0 million 8 In 2026, NS Power plans to invest approximately $52.0 million in substation programs aimed at 9 strengthening system reliability and supporting region...
AI summary NS Power plans to invest $52.0 million in 2026 for substation upgrades and replacements to enhance system reliability and support regional growth. This includes $19 million for transformer replacements and additions, with specific projects outlined in a figure.
(b) Cost-effectiveness was evaluated primarily at the program and asset-class level through NS Power's capital governance and asset management processes, supported by program-level reliability forecasting and comparative assessment of alte...
AI summary NS Power evaluated cost-effectiveness at the program and asset-class level, considering capital expenditures and reliability benefits such as reduced outage duration and frequency. Feeder-level data was used to prioritize investments, but not for standalone cost-benefit analyses at the feeder level.
2025-2029 Five Year Reliability Plan Review IR-38 Attachment 2 Page 1 of 1 Investment Track Sub-Program Scalability Notes Section SAIDI H lour Per $1M (Low) SAIDI Hou r Per $1M (High) Proposed Incremental Investment SA DI Reduction (Low) S...
AI summary The document outlines investment tracks and sub-programs for the 2025-2029 Five Year Reliability Plan, focusing on storm hardening through vegetation management and equipment upgrades. It provides scalability ratings, investment amounts, and projected reductions in SAIDI and IDI metrics.
2026 Annual Capital Expenditure (ACE) Plan (NSEB M12619) NSPI Responses to NSEB Information Requests 1 influenced the vegetation management plan in the past to address tree damage and hazard 2 trees and likely will influence the plan in th...
AI summary The 2026 Annual Capital Expenditure (ACE) Plan outlines various capital expenditures for vegetation management and infrastructure projects, including specific feeder lines and associated costs. The plan considers geographical factors such as slope, wind exposure, and hydrology in selecting work locations.
7 (i) Spend as of March 31, 2026 is as follows: CI # Project Title Spend as of March 31, 2026 ($) C0008638 D-Cogswell HRM Redevelopment Program 7,156,658 C0022662 22C-404GA Lennox Passage Rebuild 2,737,859 C0068786 2025 Padmount Replacemen...
AI summary The document outlines capital expenditures as of March 31, 2026, detailing various infrastructure projects with associated spending amounts. These include projects such as the D-Cogswell HRM Redevelopment Program and the 2025 Padmount Replacement Program.
NON-CONFIDENTIAL 1 28 (v) Why did NS Power implement programs on projects it had not originally 29 planned on targeting? Please provide all qualitative and quantitative analysis 30 in support of this response. 1 2 (e) Beyond the budgeted a...
AI summary The text discusses NS Power's implementation of programs on projects not originally planned and provides details on the allocation of the $33 million in 2025 spending for the Five-Year Reliability Plan, including specific substation projects and their associated costs.
NON-CONFIDENTIAL 1 risks or failures that happen each year. Due to these changes, several other 13 It is important to note that a project's inclusion in the Five-Year Reliability Plan does not exclude 14 it from the standard regulatory rev...
AI summary The text discusses the regulatory process for capital projects within the Five-Year Reliability Plan, emphasizing that inclusion in the plan does not replace the need for individual project approvals by the NSEB under the Public Utilities Act. It also requests detailed cost and SAIDI reduction data for the Advanced Grid Modernization Programs.
IDI reduction range of 0.70 to 1.25 hours by 2029 was derived using the total proposed investment level rather than deterministic project‑level attribution. Please refer to Synapse IR-38 Attachment 2. Ultimately, the specific projects for...
AI summary The IDI reduction range of 0.70 to 1.25 hours by 2029 is based on total investment rather than individual project attribution. Annual reviews and risk assessments guide NS Power's capital expenditure decisions, balancing reliability improvements with operational constraints and prioritizing high-risk assets.
NON-CONFIDENTIAL 1 26 Plan. but were targeted for reliability investment in 2025. 27 28 (v) Why did NS Power implement programs on substations it had not originally 29 planned on targeting? Please provide all qualitative and quantitative a...
AI summary NS Power implemented programs on substations not originally targeted due to alignment with asset management mechanisms and feeder risk profiles. The response includes quantitative and qualitative analysis, referencing project risk scores and data provided in attachments.
CI C0071528 – FLISR Implementation (NSEB M12417) NSPI Responses to NSEB Information Requests 1 federal funding for the FLISR project, offsetting the overall capital costs, in order to 2 achieve cost effectiveness of the project overall. 3...
AI summary The document discusses federal funding for the FLISR project aimed at offsetting capital costs and achieving cost effectiveness. It also references NSEB IR-2 (d) for more information on alternatives.