N-1Application - Redacted
65 passages
1 2 In preparing its capital plans, NS Power utilizes its established asset management approach, and 3 considers safety, reliability, climate change adaptation, and affordability, while incorporating the 4 Company’s decarbonization targets...
AI summary NS Power uses an asset management approach to prepare capital plans, focusing on reliability, resiliency, and affordability. The 2026 ACE Plan includes investments in reliability-focused improvements to the T&D system, addressing challenges from severe weather events through vegetation management, storm hardening, and grid modernization.
1 electricity from the generation plants to the distribution system throughout the province. 2 Transmission includes assets and equipment operating at 69 kV level or higher, and also 3 includes substation assets. 4 5 • Section 8.0 – Distri...
AI summary This section outlines the different categories of capital projects and expenditures, including transmission, distribution, general plant, and routine capital programs, with a focus on the Company’s ACE Plan and directives issued by the Board.
CI# Project Title 2026 Budget ($) Project Total ($) General Plant C0082133 IT - Renew Microsoft Enterprise Agreement 1,800,000 1,800,000 This project funds the on-premises portion of the Microsoft Enterprise Agreement for software assuranc...
AI summary The document outlines several IT and infrastructure projects planned for 2026, including the renewal of Microsoft Enterprise Agreement, implementation of distributed intelligence apps, a DERMS solution, and improvements to the Sydney Depot. Each project includes budget allocations and total project costs.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026 ACE Plan CONFIDENTIAL (Attachments Only) 1 8.0 DISTRIBUTION 2 3 Distribution includes replacement of, and additions to, equipment for delivering electricity from 4 points on the transmission...
AI summary The 2026 ACE Plan outlines NS Power's distribution investment, including historical, forecast, and budget figures, with a focus on capital spending for delivering electricity at voltages below 69 kV. Figure 25 provides a breakdown of the 2026 distribution investment by investment type.
L (Attachments Only) 1 Figure 25: 2026 Distribution Investment by Investment Type 2 (Millions of dollars) Distribution 31.8 8.9 Sustaining 79.2 Customer/Load Driven Regulatory/Compliance Right-of-Way Widening 70.6 3 4 5 Distribution invest...
AI summary The 2026 Distribution investment plan, totaling approximately $190.5 million, is driven by asset management strategies and customer load growth. The investment focuses on sustaining capital, reliability, and regulatory compliance.
iv Carry-over capital spending. (As provided in Section 8.1) 15.5 v Routine capital spending. (As provided in Section 10) 140.5 Total 2026 Distribution Capital Investment Plan 190.5 Request for ACE Approval (Items i and v) 160.7 Note 1: To...
AI summary The text outlines the 2026 Distribution Capital Investment Plan, including carry-over and routine capital spending, with details on specific projects such as Advanced Meter Infrastructure and the D-Cogswell HRM Redevelopment Program, along with their budgets and expenditures.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026 ACE Plan CONFIDENTIAL (Attachments Only) CI# Project Title Start Final Previous 2026 Budget Subsequent Total Date Date Expenditure ($) Spending ($) Estimate ($) ($) C0053517 9H-221 Universit...
AI summary The 2026 ACE Plan includes capital projects for distribution infrastructure, such as new right of way development and reconductor phases. The table outlines project details, including start and final dates, previous expenditures, 2026 budget allocations, and total estimated spending for several initiatives.
1 • L-6511 was substituted by L-6002, L-6503 2 3 The following progress was made on distribution widening under D010: 4 5 • 62 percent of planned 2025 work has been completed as of October 31, 2025 6 • 80 percent completion is forecast for...
AI summary Progress on distribution widening under D010 shows 62% completion as of October 31, 2025, with 80% expected by year-end. Increased vegetation management costs are attributed to higher traffic control, labor, and expanded scope of work, including enhanced fire monitoring and targeting specific tree species to mitigate risks from wind events.
Technical Deliverables (Specifications and/or Drawings) Conductor, Insulator, Grounding, Joint Design (including protection for buried or subsea) Complete (C) S P C C C Foundation/Structure (Tower) Design Not Applicable (NA) Route Mapping/...
AI summary The text outlines technical deliverables and their status for a project, including conductor, insulator, grounding, joint design, foundation/structure design, route mapping, and other specifications. Most items are marked as complete or preliminary, with some noted as not applicable.
mobile transformer connection capable of accommodating larger mobile units, addressing long-standing substation access challenges and eliminating the need for foreseeable future upgrades at the site. Summary of Related CIs +/- 2 years Purs...
AI summary The project involves adding a new 69kV-12kV transformer in Bridgewater to address aging infrastructure, increase capacity, and support long-term distribution planning. The existing 69-4.2kV transformer is over 68 years old and has exceeded its service life. The new transformer will operate in parallel with an existing one, providing redundancy and enabling the conversion of 4kV feeders to 12kV.
REDACTED 2026 ACE Plan C0070909 Attachment 1 Page 2 of 16 Bridgewater Area Planning Study Addendum EXECUTIVE SUMMARY This addendum to the 2006 Bridgewater Distribution Planning Study 211-0606-W62 provides updated justification and context...
AI summary This addendum updates the 2006 Bridgewater Distribution Planning Study, justifying the retirement of an aging transformer and its replacement with a higher-capacity unit. The upgrade is needed due to evolving load profiles and approaching system limits, with construction scheduled to begin in 2026 and complete by 2029.
W-AREA-2025-017 Nov 10, 2025 ii Date: December 12, 2025 Page 370 of 782 REDACTED REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED 2026 ACE Plan C0070909 Attachment 1 Page 4 of 16 Bridgewater Area Planning Study Addendum 1.0 SCOPE This...
AI summary This addendum updates the Bridgewater Area System Planning Study, focusing on transformer 70W-T51 and the conversion of the distribution system from 4 kV to 12 kV. It highlights stable loading on 70W-T51, increased loading on 70W-T53, and the need for a new 69 kV-12 kV transformer to support the conversion and improve system reliability.
melines, investment requirements, and EAM documentation to align with current planning criteria and Nova Scotia Power’s long-term strategy to standardize the distribution network at 12 kV or 25 kV.
AI summary The text discusses the need to align investment requirements and EAM documentation with current planning criteria and Nova Scotia Power’s long-term strategy to standardize the distribution network at 12 kV or 25 kV.
W-AREA-2025-017 Nov 10, 2025 3 Date: December 12, 2025 Page 371 of 782 REDACTED REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED 2026 ACE Plan C0070909 Attachment 1 Page 5 of 16 Bridgewater Area Planning Study Addendum 2.0 SUMMARY OF O...
AI summary The Bridgewater Area System Planning Study identified the 70W-High Street substation as a critical supply point. It outlined three reinforcement alternatives, with Alternative A-1 proposing replacing a transformer and converting 4 kV feeders to 12 kV to relieve the 89W substation. This alternative was not pursued due to higher costs, but a later transformer replacement at 89W resolved the issue. Alternative B-1 suggested replacing 70W-T51 while maintaining the 4 kV system.
eliminating the need for system reconfiguration between the two substations. • Alternative B-1 – Replace 70W-T51 and Maintain 4 kV System This option recommended replacing 70W-T51 with a new 69/4 kV unit of similar capacity to maintain the...
AI summary The document evaluates two alternatives for upgrading the 70W-T51 substation. Alternative B-1 involves replacing the unit with a similar 4 kV system, while Alternative B-2 proposes converting the 4 kV network to 12 kV and retiring the 4 kV assets. The latter was selected as the preferred long-term solution for efficiency and operational flexibility.
result, the Bridgewater system continues to operate with both 4 kV and 12 kV networks, and the scope defined in this addendum remains essential to complete the transition initiated in the 2006 study. 4.0 SYSTEM CONDITIONS 4.1 Feeder Voltag...
AI summary The Bridgewater Area distribution system operates with a mix of 4 kV and 12 kV feeders, supplied from two substations. The mixed-voltage configuration increases maintenance complexity and limits operational flexibility. Nova Scotia Power aims to standardize the distribution system to 12 kV and 25 kV as part of its long-term strategy.
removes the need for ongoing investment in the 4 kV system. Alternative B is therefore the recommended solution, offering the lowest cost with significantly higher system and operational benefits. W-AREA-2025-017 Nov 10, 2025 9 Date: Decem...
AI summary The Bridgewater Area Planning Study Addendum concludes that Alternative B is the recommended solution for replacing transformer 70W-T51 and completing voltage conversions at 70W-High Street Substation. The project will retire 4 kV assets, upgrade to 12 kV transformation, and align with Nova Scotia Power’s long-term distribution strategy. The estimated investment is $4.3 million, with completion planned for January 2029.
Technical Deliverables (Specifications and/or Drawings) Conductor, Insulator, Grounding, Joint Design (including protection for buried or subsea) Complete (C) S P C C C Foundation/Structure (Tower) Design Not Applicable (NA) Route Mapping/...
AI summary The text outlines technical deliverables and their status for a project, including conductor, insulator, grounding, joint design, foundation/structure design, route mapping, and other specifications. Most items are marked as complete or preliminary, with some noted as not applicable.
for specific risks associated with additional overtime work that may be required to complete the project within the available outage window, and any unforeseen material or contract cost increases. Date: December 12, 2025 Page 411 of 782 RE...
AI summary The document outlines a project to establish new distribution rights-of-way in 2026, targeting areas where existing vegetation management practices are insufficient to prevent tree contacts and ensure reliable system operation. The project is part of the 2026 ACE Plan and is expected to cost $20,889,694.
• 2025 CI C0061521 New Distribution Rights-of-Way Phase 10 $20,890,176 • 2027 CI TBD New Distribution Rights-of-Way Phase 12 $TBD • 2028 CI TBD New Distribution Rights-of-Way Phase 13 $TBD Depreciation Class: Distribution Plant - Land Righ...
AI summary This project involves establishing new distribution rights-of-way to support storm hardening and vegetation management, reducing outages by mitigating tree contact issues, particularly outside existing corridors. It aligns with NS Power’s Five-Year Reliability Plan and aims to improve system resilience during normal and extreme weather conditions.
Page 414 of 782 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026 ACE Plan C0080266 Page 3 of 6 Completing this project has a direct, and immediate impact on the vegetative condition of the feeder being worked on. As the vegetative conditio...
AI summary This project improves the vegetative condition of distribution feeders, reducing the likelihood of tree-caused outages. The improvement is assessed using a 1 to 5 scale and is linked to reliability indicators like SAIFI and SAIDI. The project was recommended following a review of Post-Tropical Storm Arthur to enhance reliability during major storm events.
ility benefits during major storm events. As set out in NS Power’s February 13, 2015 Stakeholder Consultation Report, there was general stakeholder support for accelerating the sustainability program. A focus on removing trees within and a...
AI summary The document discusses a vegetation management program by NS Power to improve reliability during major storms by clearing trees in and along distribution rights-of-way. It outlines initiatives to widen and establish new rights-of-way, with a focus on enhancing reliability through proactive measures. The project is expected to be in-service by January 2026, with the final cost date set for August 2027.
ave previously existed. The new rights-of-way will primarily be established adjacent to the road right-of-way edge, where most distribution feeders are currently located and bordered by vegetation. 1 Review of Nova Scotia Power Inc.'s (NSP...
AI summary The document discusses the establishment of new distribution rights-of-way adjacent to existing road right-of-way edges, with a focus on the Provincial Distribution System and the 2026 ACE Plan. It includes details on labor costs for a Forestry Coordinator and the overall cost estimate for the project.
8 5 3 2 73W-411GB 7 5 3 2 73W-411GCA 8 4 3 1 74N-412 16 3 2 1 74N-412G 18 5 1 4 88H-402G 9 3 2 1 91W-411 9 3 2 1 In some cases, the overall condition average condition (combined vegetation assessment and reliability indicators) for the of...
AI summary This document outlines a capital project to replace deteriorated power lines and infrastructure along 36V-303 in Baxter’s Harbour, Kings County. The project involves replacing 5.28 km of single-phase conductors, 5 transformers, and 9 poles with upgraded materials and additional poles, with a forecasted cost of $1,062,416.
nts. Addi onal details pertaining to the condi ons for replacement are provided in the NS Power Capital Planning & Capital Expenditure Jus fica on Criteria Detailed Document. 17.10 DistribuƟon System NS Power's Distribu on System connects...
AI summary NS Power outlines criteria for its distribution system, including requirements to serve, pole strength compliance, voltage standards, and outage performance. The document also addresses pole retreatment principles and conditions, emphasizing infrastructure maintenance and safety standards.
bjec ves. All ACE Plan projects must answer the following ques ons in order to be considered jus fied: 1. Why do this project? 2. Why do this project now? 3. Why do this project this way? A capital expenditure is not jus fied un l the need...
AI summary Nova Scotia Power Inc. outlines criteria for justifying capital expenditures, requiring projects to answer three questions: purpose, timing, and methodology. Capital is categorized into Generation, Transmission, and Distribution, with specific definitions for each utility function.
To maintain reliability and quality of supply to the distribu on bus. CondiƟons for Replacement Transmission plant shall be replaced, if s ll required to meet system design requirements, as follows: • Transmission poles which fail the test...
AI summary The text outlines conditions for replacing transmission infrastructure, including poles failing overturning moment tests, specific insulator types with cemented joints, and substation apparatus based on insulation degradation or calibration issues. Regular inspections and testing intervals are specified to ensure system reliability and safety.
ther transmission plant so as to eliminate NS Power’s requirement for the plant in ques on. • Replace the transmission plant as to maintain NS Power’s transmission system. • Any repairs, upgrades or modifica ons will be costed as per the m...
AI summary The document outlines Nova Scotia Power's approach to transmission and distribution system upgrades, emphasizing cost justification for capital expenditures and adherence to service provision requirements. It details criteria for replacing transmission infrastructure, cost calculation standards, and the integration of distribution systems with customer service needs.
e undertaken unless the customer requests to contribute the incremental cost difference. Extension of service will conform to the latest version of the NS Power Rates, Regula ons and Procedures Manual. Pole Strength Compliance with Standard...
AI summary NS Power outlines criteria for replacing distribution pole lines based on safety hazards, distribution planning, legal obligations, and cost minimization. Pole replacement is mandated by CSA standards and guided by a 1993 report on inspection procedures and replacement criteria.
immediately if, in the opinion of NS Power, it cons tutes a hazard to opera ng personnel or the general public. Otherwise, it shall be replaced in a least cost manner. Month DD, 2025 Page 73 of 113 Date: December 12, 2025 Page 592 of 782 R...
AI summary Nova Scotia Power Inc. outlines criteria for capital planning and expenditure justification, emphasizing least-cost replacements when hazards are absent and adherence to CSA voltage standards. Voltage deviations trigger evaluations of alternative solutions to meet standards economically.
ure is used to evaluate alterna ve solu ons to correc ng voltage condi ons to CSA Standards on the Nova Sco a Power Inc. distribu on system. • Local Voltage For local voltage issues the costs are iden fied to determine a least cost solu on...
AI summary The text outlines methods and associated costs for addressing voltage issues on Nova Scotia Power Inc.'s distribution system, including transformer adjustments, reconductoring, and infrastructure upgrades, with costs calculated in current-year or present-worth dollars.
rrent year or present worth dollars and represent the costs to resolve distribu on system protec on problems. PrevenƟon of Catastrophic Failure of DistribuƟon Transformers/Capacitors Maximum symmetrical fault levels of 8000 amps at 24.94 k...
AI summary The document outlines Nova Scotia Power Inc.'s capital expenditure justification criteria, focusing on distribution system design standards to prevent catastrophic failures and grounding requirements. It specifies fault level thresholds and references the 2026 ACE Plan Appendix D for detailed procedures.
6 ACE Plan Appendix D Page 145 of 179 Nova ScoƟa Power Inc. Capital Planning & Capital Expenditure JusƟficaƟon Criteria Detailed Document • Grounding – Economic Jus fica on Procedure To reduce the earth poten al the costs are iden fied suc...
AI summary Nova Scotia Power Inc. outlines capital expenditure justification criteria for grounding, joint use agreements, highway relocation, radio interference voltage, and voltage unbalance. Costs include labor, materials, and compliance with regulations like DEP 5.50 and the Radio Communication Act. Joint use agreements with Bell Aliant aim to reduce costs for both parties.
r other similar methods. Voltage Unbalance Expenditures may be required due to viola on of the criteria outlined in DEP 5.50 "Distribu on Feeder Balancing" on NS Power's system. Alterna ve methods of solving this problem would include phas...
AI summary The text outlines capital expenditure requirements for addressing voltage unbalance, flicker from motor starting, and wood pole retreatment under NS Power's criteria. It references DEP guidelines for distribution feeder balancing and voltage flicker, emphasizes customer responsibility for flicker mitigation, and details conditions for wood pole retreatment using approved preservatives.
he preserva ve reten on levels in the ground line area thereby maintaining acceptable toximetric thresholds necessary for protec on against fungal and insect a ack. Criteria for Wood Pole Retreatment Wood pole species found on the transmis...
AI summary NS Power outlines criteria for retreating wood poles on transmission and distribution systems, including testing based on DEP 7.51 and CSA standards, exceptions for environmental or landowner reasons, and data maintenance on a computerized database.
opera on of the substa on. Transmission Line Replacements, Addi ons, Modifica ons This rou ne provides for the reac ve and planned replacement / improvement of transmission line components. Poles, structures and insulators which have deter...
AI summary The document outlines routines for transmission line replacements, distribution upgrades, and metering costs, emphasizing capital expenditure justification criteria. It references the 2026 ACE Plan Appendix D and Nova Scotia Power Inc.'s capital planning processes, focusing on infrastructure maintenance and replacement priorities.
2026 ACE Plan Appendix D Page 157 of 179 Nova ScoƟa Power Inc. Capital Planning & Capital Expenditure JusƟficaƟon Criteria Detailed Document Distribu on Upgrades and Replacement This rou ne covers the costs associated with reac ve distribu...
AI summary Nova Scotia Power Inc.'s 2026 ACE Plan Appendix D outlines capital expenditure routines for distribution system upgrades, replacements, and new customer additions. Costs cover reactive/planned asset replacement, system performance improvements, storm damage recovery, regulatory compliance, and new customer infrastructure contributions governed by utility board regulations.
. 26 17 4.5 Trimming and Removal of Trees Around Existing Power Lines .......................... 27 18 5.0 STORM HARDENING – TARGETED EQUIPMENT REPLACEMENTS AND 19 UPGRADES .....................................................................
AI summary The document outlines infrastructure upgrades for Nova Scotia's power grid, including tree trimming, storm hardening, equipment replacements, and grid modernization programs. It is part of the 2026 Annual Capital Expenditure (ACE) Plan, focusing on distribution, transmission, and substation improvements.
1 LIST OF FIGURES 2 3 Figure 1: Forecast Investment by Reliability Program 2025-2029 ($ millions) ............................. 7 4 Figure 2: Contribution to CHI by Outage Cause (2020 – 2024) Performance Standards ............11 5 Figure 3...
AI summary The document outlines a list of figures related to reliability programs, vegetation management, corridor widening, and rights-of-way establishment in Nova Scotia. Key themes include reliability investments, outage cause analysis, customer interruption metrics (CHI), SAIDI improvement targets, and infrastructure planning initiatives for 2025.
1 Figure 26: In Progress Construction of New Mount Uniacke Substation .................................... 42 2 Figure 27: 2025/2026 Advanced Grid Modernization Progress Overview ................................. 44 3 Figure 28: 2025 Plann...
AI summary The document outlines infrastructure projects and planning for grid modernization, reliability, and expansion in Nova Scotia, including substation construction, remote terminal unit installations, vegetation management, right-of-way widening, and conductor upgrades for 2025/2026.
ments 8 detailed in year one of the Plan. The Plan has a goal of reducing the overall duration and frequency 9 of outages while balancing the affordability of these investments for customers. 10 11 1.1 Five-Year Reliability Plan Commitment...
AI summary NS Power's Five-Year Reliability Plan aims to reduce outage duration and frequency through three core programs: vegetation management, storm hardening, and grid modernization. The plan balances reliability improvements with customer affordability, focusing on infrastructure upgrades and advanced grid technologies.
n its ACE Plan 26 applications on the progress of its Five-Year Reliability Plan. 27 28 The Board directs NS Power to update the equivalent of Figure 3 in the 2025 ACE 29 Plan application about priority distribution feeders in the 2026 ACE...
AI summary NS Power is updating its Five-Year Reliability Plan in response to the Board's directive, focusing on progress in 2025, anticipated 2026 work, and plan revisions. The 2026 ACE Plan application is highlighted as requiring updates on priority distribution feeders.
3,500 700,000 3,000 600,000 2,500 500,000 2,000 400,000 1,500 300,000 1,000 200,000 100,000 500 - - 2020 2021 2022 2023 2024 2025 (Projected) Customer Hours Projected Outage Event Count Projected 4 5 6 2.2 Distribution Targeted Devices 7 8...
AI summary Figure 4 illustrates trends in customer hours of interruption and outage frequency from 2020 to 2025, showing reductions attributed to distribution equipment upgrades and storm hardening initiatives. Projections for 2025 include actual data through October and estimates for November-December based on historical performance.
1 3.0 2025 Overview – Year One of Five Year Reliability Plan 2 3 In 2025, NS Power’s Reliability team has been focused on executing the projects identified in year 4 one of the Plan, with $206.6 million committed to strengthen the grid and...
AI summary NS Power's 2025 reliability efforts focused on $206.6 million in grid upgrades, including distribution system improvements like replacing insulators, conductors, and transformers, as well as tree clearing to enhance resilience against weather events and support growing energy demand.
nt work programs. 5 6 Figure 8: 2025 (YTD End of October) Distribution Vegetation Management Completed by 7 Region Region Distribution Vegetation Management Spans Kms Metro 1,114 61 NE 3,913 217 CB 1,874 104 West 4,230 235 Total 11,131 617...
AI summary NS Power adjusted its 2025 vegetation management program due to provincial restrictions from the Department of Natural Resources (DNR) imposed during drought and wildfire conditions in 2025. Restrictions included halting heavy equipment operations during extreme fire weather and conducting fire watches, leading to revised work prioritization and scheduling to maintain reliability while complying with safety protocols.
argeted 27 vegetation management activities. This originally unplanned work focused on removing fire- 28 compromised trees at risk of falling into conductors and widening over 6.5 kilometers of Page 22 of 71 Date: December 12, 2025 Page 73...
AI summary NS Power's 2026 ACE Plan Appendix G details $66 million in 2025-2029 investments for distribution corridor widening and vegetation management to enhance wildfire mitigation and system reliability. 183 km of corridor widening completed, with 59 km planned by year-end, impacting 35 communities.
Planned Completed (Due to Wildfire on Track Kms YTD Mitigation) Kms (Y/N) Distribution Corridor 297 183 242 Widening with Managed Rights-of-Way 19 20 Figure 10 below illustrates the locations where distribution rights-of-way have been wide...
AI summary The document outlines NS Power's infrastructure projects to widen distribution and transmission corridors with managed rights-of-way, aiming to improve reliability by increasing separation between conductors and forest edges. It details $15 million in 2025-2029 forecast investments for transmission corridor widening, with $3 million anticipated for 2025 year-end spending.
2026 ACE Plan Appendix G Page 26 of 71 NS Power Five-Year Reliability Plan - Update Non-Confidential 1 4.4 Establish New Rights-of-Way (ROW) 2 3 2025-2029 Forecast Investment: $86 million 4 2025 Anticipated Year End Investment: $16.4 milli...
AI summary NS Power's 2025-2029 program to establish new distribution rights-of-way aims to improve reliability, with $86 million in forecasted investment and 229 km completed by year-end, as detailed in Figures 12 and 13.
Planned Year to Date Plan Track Kms Kms (Y/N) Trimming and Removal of 177 205 260 Trees Around Existing Powerlines 6 7 Figure 15 illustrates the geographic distribution of completed vegetation work in this category, 8 with a significant co...
AI summary NS Power's Five-Year Reliability Plan Update highlights efforts to reduce tree-related outages through targeted vegetation management, including trimming and removal of trees near powerlines. Urban areas with constrained right-of-way (ROW) expansion show significant work, while expanded ROWs in Shelburne, Trenton, and Little Harbour improve reliability and safety by increasing visibility for maintenance.
2026 ACE Plan Appendix G Page 31 of 71 NS Power Five-Year Reliability Plan - Update Non-Confidential 1 5.0 STORM HARDENING – TARGETED EQUIPMENT REPLACEMENTS AND 2 UPGRADES 3 4 2024-2029 Forecast Investment: $916 million 5 Forecasted Perfor...
AI summary NS Power's 2024-2029 Storm Hardening Plan includes $916 million for distribution, transmission, and substation upgrades to enhance grid reliability and comply with regulations. Investments target aging equipment, aiming to reduce SAIDI by 0.13–0.24 hours.
ge 739 of 782 REDACTED REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2026 ACE Plan Appendix G Page 32 of 71 NS Power Five-Year Reliability Plan - Update Non-Confidential 1 Figure 18: 2025 Targeted Equipment Upgrades Progress Overview Program...
AI summary NS Power outlines its 2025 targeted equipment upgrades, including $81 million in distribution and transmission system investments. Key initiatives focus on replacing aging infrastructure, expanding protective devices, and ensuring environmental compliance to enhance system reliability and customer experience.
Trip Savers Target Status Region 2025 Installed 2025 East 3 3 Completed Northeast 3 2 On Track Metro 1 1 Completed West 9 9 Completed 2 3 New Distribution Feeders 4 5 NS Power planned for the addition of two new distribution feeders in 202...
AI summary NS Power plans to add new distribution feeders in 2025 to address capacity constraints and support growing communities, with updates to overhead standards aligning with CSA C22.3. The Board’s 2025 ACE Plan decision (M12012) directed these initiatives.
dentifies the region, feeder, 9 location, and the number of poles scheduled for upgrade to the new class standard. These assets 10 will be monitored on an ongoing basis following storm events. 11 12 5.1.3 Distribution System Build to Roads...
AI summary NS Power's Distribution System Build to Roadside program aims to enhance reliability by relocating distribution lines to roadside locations, reducing tree-related contacts. In 2025, the program exceeded its 8 km target, completing 8.8 km and advancing 2 km of additional work, improving infrastructure accessibility and outage management.
7 Re-Prioritized Exceeded – Ongoing West 1.0 4.8 Projects In Progress 2 3 5.1.4 Distribution System Conductor Upgrades 4 5 The Distribution Conductor Upgrades program is a proactive initiative aimed at replacing aging 6 infrastructure to r...
AI summary NS Power's Distribution Conductor Upgrades program aims to replace aging infrastructure, improving reliability and resilience. In 2025, 73.7 km of distribution lines were reconductored, exceeding the 39 km target. An additional 4.5 km is planned for completion by year-end, with regional breakdowns provided in Figure 22.
nductor Region Reconductored Reconductored Reconductored Reconductored Target Status East 2 5.4 4 17.1 West 5 9.7 13 28.4 Metro 18 10.6 12 15.0 Northeast 7 12.8 10 13.2 2 3 5.1.5 Distribution System Underground Upgrades 4 5 The Distributio...
AI summary NS Power's Distribution Underground Program focuses on replacing aging underground infrastructure, including padmount transformers, vaults, and manholes. In 2025, NS Power exceeded its target of replacing 50 padmount transformers, completing 64 replacements by November. Additional upgrades, including three vaults and one manhole, are also underway.
2026 ACE Plan Appendix G Page 46 of 71 NS Power Five-Year Reliability Plan - Update Non-Confidential 1 2 As outlined in NS Power’s Five-Year Reliability Plan, establishing a communications path 3 between downline reclosers and the Advanced...
AI summary NS Power's 2025/2026 reliability plan emphasizes integrating 35 downline reclosers with the Advanced Distribution Management System (ADMS) to improve outage response, reduce restoration delays, enhance asset visibility, and improve worker safety through remote SCADA operations.
ion status of these communication paths and identifies the specific devices and feeders 11 involved. 12 13 Figure 29:2025/2026 Planned Communications Path with Downline Reclosers Installation
AI summary The text discusses the current status of communication paths, identifying involved devices and feeders, and references a figure detailing the 2025/2026 planned communications path with downline reclosers installation.
ribution Establish New ROWs 377 kms Vegetation Management Trimming and Removal of Trees 192 kms Transmission Transmission Corridor Widening 121 kms Vegetation Management Distribution System Equipment 15 Trip Saver Additions Targeted Upgrad...
AI summary The document outlines infrastructure projects for Nova Scotia Power's reliability plan, including new right-of-way establishment, vegetation management, transmission corridor widening, and distribution system upgrades. Specific initiatives include conductor replacements, substation transformer replacements, and targeted equipment additions to enhance grid reliability.
2026 ACE Plan Appendix G Page 55 of 71 NS Power Five-Year Reliability Plan - Update Non-Confidential 1 7.1.3 Establish New Rights-of-Way (ROW) 2 3 2026 Forecast Investment: $18.5 million 4 5 The 2026 Vegetation Management Reliability progr...
AI summary NS Power's 2026 ACE Plan allocates $18.5M to establish 377km of new rights-of-way using satellite-driven vegetation management and $6.9M for trimming/removing trees along 192km of distribution lines, targeting reliability improvements across Central/Metro, East, Northeast, and West regions.
mming along approximately 192 kilometers of distribution line in 22 2026. Figure 38 provides a detailed breakdown of the communities and circuits where this work 23 is scheduled to take place 24 Page 55 of 71 Date: December 12, 2025 Page 7...
AI summary The document outlines NS Power's 2026 maintenance plans for 192 km of distribution lines across Central/Metro, East, Northeast, and West regions, with $83.9 million allocated for equipment upgrades under the 2026 ACE Plan. Storm hardening initiatives are forecasted to cost $178.9 million.
TS AND 4 UPGRADES 5 6 2026 Forecast Investment: $178.9 million 7 8 7.2.1 Distribution System Equipment Upgrades and Replacements 9 10 2026 Forecast Investment: $83.9 million 11 12 7.2.1.1 Modernize and Replace Aging Equipment 13 14 NS Powe...
AI summary NS Power plans $83.9M in 2026 for distribution upgrades, including PCB replacement and 7.1km of line relocation to roadside to improve reliability. Modernization efforts align with federal regulations and prioritize infrastructure renewal based on inspection data.
34.0 West Metro 9.6 Northeast 17.2 2 3 In 2026, NS Power plans to complete approximately 30.9 kilometers of line and phase extensions 4 to enhance system reliability and operational flexibility. These projects are designed to improve 5 loa...
AI summary NS Power plans to complete 30.9 km of line and phase extensions in 2026 to enhance system reliability, reduce voltage drops, and improve service continuity in rural and developing areas. Projects are regionally distributed, with 5.5 km in the Northeast, 10 km in Metro, and 15.4 km in the West, as outlined in Figure 41.
1 7.2.1.4 Distribution System Underground Upgrades 2 3 In 2026, a planned investment of $10.2 million will support the Distribution Underground 4 program, aimed at strengthening and modernizing NS Power’s underground electrical system. Thi...
AI summary NS Power plans a $10.2M 2026 investment in underground distribution upgrades, including cable replacement in Kentville, SCADA-enabled switch installation in Halifax, and a high-capacity ductbank with QEII Health Sciences Centre. These projects aim to enhance system reliability, reduce outages, and support infrastructure growth in high-density areas.
wth in high-density areas by enabling 25 the extension of existing three-phase circuits. Additionally, the project will establish new feeder 26 ties, contributing to improved reliability and operational flexibility in the distribution netw...
AI summary The project involves extending existing three-phase circuits in high-density areas and establishing new feeder ties to enhance reliability and operational flexibility in the distribution network. Further details are referenced in CI C0074130 (matter M12456).
NS Power Five-Year Reliability Plan - Update Non-Confidential 1 Figure 45: 2025/2026 Planned Communications Path with Downline Reclosers Installation
AI summary The document presents an update to NS Power's Five-Year Reliability Plan, focusing on the 2025/2026 planned communications path with downline reclosers installation.
N-6NSPI (NSEB) RIR 1 to 202 - Redacted
26 passages
2026 ACE Plan NSEB IR-1 Attachment 1 Page 1 of 3 1987.25 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17.1 17...
AI summary This document is part of the 2026 ACE Plan and includes a table with details on a project titled 'FLISR Implementation' under the 'Advanced Grid Modernization' category, with a forecasted spend of $3,445,667 in 2026. The project is classified under 'Reliability Enhancement' and the 'Distribution' asset class.
CONFIDENTIAL (Attachment Only) 1 Request IR-116: 2 3 T02: C0070909, 70W-T52 Transformer Addition 4 5 The application notes three transformers: 70W-T51, 70W-T53, and 89W-T1. Page 365 that 6 the 2006 Bridgewater Area System Planning Study (2...
AI summary The document includes a request (IR-116) related to transformer additions and system planning in Bridgewater, Nova Scotia. It asks for details about feeders, customer counts, load data, installation dates, conversion progress, load transfer, and a 2006 planning report. The response indicates that data prior to 2022 is unavailable due to legacy limitations and provides data from 2022-2025.
REDACTED 2026 ACE Plan NSEB IR-116 Attachment 1 Page 4 of 52 Figure 1: Bridgewater Area - Transmission Switching Diagram 3 Figure 2: Existing Sub-transmission System - Bridgewater Area Figure 3: Town of Bridgewater Figure 4: Feeder Circuit...
AI summary The document contains figures and tables related to the Bridgewater Area's transmission and distribution systems, including load history, growth rates, and infrastructure details. These materials are part of the 2026 Annual Capital Expenditure (ACE) Plan submitted to the Nova Scotia Energy Board.
1.0 SUMMARY The Sub-transmission and distribution systems located in the Bridgewater area have been analyzed in this report over a ten year time frame. Results show that there is an immediate requirement for additional 12kV feeder capacity...
AI summary The report analyzes the sub-transmission and distribution systems in Bridgewater, identifying immediate needs for additional 12kV feeder and 69-12kV sub-station transformer capacity. Alternative A-2 is recommended for its lower cost and effort. Alternative B-2 is recommended to resolve a plant criteria violation at High Street Transformer 70W-T51. Additional work is required at Auburndale Sub-station and Line L-5545, and a full sub-transmission study of the Westhavers Elbow system is recommended.
The 69kV Sub-transmission System in the Bridgewater area is supplied via the 138kV transmission system transformers identified in table #1 below. EHV Sub-station Transformer Data Sub-station Name Xfmr Manufacturer kV. Rating IMP. Age 75W -...
AI summary The 69kV Sub-transmission System in the Bridgewater area is supplied through 138kV transmission system transformers. Table 1 lists the EHV sub-stations, transformers, their manufacturers, ratings, ages, and other relevant data.
12kV & 4kV Distribution: The commercial and residential loads in the town are fairly evenly distributed between the two sides of the LaHave River. Each side has approximately 10MVA of peak load in the urban core, and 8-9 MVA of peak load i...
AI summary The town's 12kV and 4kV distribution system serves both sides of the LaHave River with approximately 10MVA of peak load in urban areas and 8-9 MVA in rural areas. The High Street sub-station supplies 5 MVA to the Northeast side due to capacity limitations at Bridgewater East Sub-station, with 3 MVA supplied at 4kV and 37 MVA at 12kV from various circuits.
25kV Distribution: The 25kV distribution in the Bridgewater area is fed from the Auburndale Sub-station. Auburndale supplies 1.5 MVA of industrial load within the Bridgewater Industrial Park via circuit 73W-412 and also maintains a 3 MVA r...
AI summary The 25kV distribution in Bridgewater is supplied by the Auburndale Sub-station, which serves both industrial and rural loads. Circuit 73W-412 provides 1.5 MVA to the Bridgewater Industrial Park and reserves 3 MVA for the Michelin plant. Circuit 73W-411 supplies 10 MVA to rural areas with the highest customer count in the province, but its analysis is not included in this report.
2.2/ Bridg jewater Area Feeder Circu uits Station Xfmr Feeder Feeder Peak Fee der Amps Name I.D. kV (L-L) # 2002 Limit High Street 70W-T51 4.16 70W-203 242 300 70W Built 1957 70W-204 146 240 -2 70W-T53 13.2 70W-311∖ 156 240 #2 Built 1990 7...
AI summary Table 5 provides details on distribution circuits in the Bridgewater area, including station names, transformer IDs, voltage levels, feeder numbers, peak feeder amps, and amp limits. The data covers various substations like High Street, Auburndale, and Bridgewater East, with information on construction dates and circuit specifications.
Relevant Information: The load history shown in Figure 5 reflects the following: - 1.5 MVA of peak load was Transferred to 89W-303 from 84W-302 (Robinson Corner) in 1995. - 2.6 MVA of peak load was offloaded from 89W-301 to 70W-321 in 1995...
AI summary The text outlines historical load transfers and capacity issues in the Bridgewater East (89W) and High Street (70W) areas, including peak load transfers between substations, power factor concerns, and a current capacity criteria violation on Circuit 89W-301 during peak load periods.
Alternative A-1: Add a new Transformer at 70W and Offload 89W This option relies on the installation of a second transformer at the High Street Substation to offload the distribution circuits supplied by the Bridgewater East Substation. -...
AI summary Alternative A-1 involves installing a new transformer at the High Street Substation and making several distribution upgrades in 2004 to offload the Bridgewater East Substation. The plan includes circuit conversions, reconductoring, and infrastructure upgrades to support new loads and improve reliability.
4.1.1/ - Reconductor circuit 70W-312 along Dufferin Street and Jubiliee Road down to Desbrisay Drive using 336 ASC in 2004. - Upgrade Brook Street and Pine Street to three phase 2/0 ACSR in 2004 - Use circuits 70W-312 and 70W-314 to offloa...
AI summary The text outlines various electrical infrastructure upgrades, including reconductoring circuits, upgrading streets to three-phase configurations, and using existing circuits to offload others. It also presents an alternative involving replacing an existing transformer with a larger unit at Bridgewater East.
It involves the following work: - Install a new 12kV bus assembly within 99W complete with two recloser bays & U/G station exits, a switch bay, and a bay to connect a new grounding (zigzag) transformer in 2004. - Install a new grounding tr...
AI summary The text outlines a series of electrical infrastructure upgrades and installations in 2004, including new bus assemblies, transformers, distribution lines, and reconductoring efforts to support new developments and improve reliability.
4.1.1/ The two circuits from 99W would be used to supply the new load on Pine grove Road and to offload circuits 70W-322 and 321, which would then be used to completely offload circuit 89W-301. This would lower the peak load on sub-station...
AI summary The text describes a plan to use two circuits from 99W to supply a new load on Pine Grove Road and offload other circuits, ultimately reducing the peak load on sub-station transformer 89W-T51 to 100% of its nameplate rating of 11.2MVA.
Qualitative Analysis 70W: Adding a transformer at Sub-station 70W would place additional capacity as near to the geographic load centre of Bridgwater as possible, and would therefore lower costs associated with system losses. The distribut...
AI summary The document evaluates two transformer upgrade options at Sub-stations 70W and 89W in Bridgwater. Adding a transformer at 70W would reduce system losses but require additional infrastructure for long-term growth. Replacing the transformer at 89W is considered a less costly and less disruptive solution, despite being further from the load centre.
Solution: Alternative B-1: Replace Transformer 70W-T1 at the end of its Expected Life This alternative involves the purchase and installation of a new 5 MVA, 69-4kV transformer within the High Street sub-station. Alternative B-2: Convert t...
AI summary The document presents two alternatives for upgrading the electrical infrastructure at the High Street sub-station. Alternative B-1 proposes replacing Transformer 70W-T1 with a new 5 MVA, 69-4kV transformer at the end of its expected life. Alternative B-2 suggests converting the remaining 4kV circuits to 12kV by using multiple 12-4kV step-down transformers connected to existing 12kV circuits.
4.1.2/ Conversion: The two High Street 4kV circuits supply a total peak load of approximately 3 MVA, which could easily be supplied via two or three banks of single phase step down transformers. A new 12kV circuit would eventually supply t...
AI summary The analysis suggests converting remaining 4kV circuits to 12kV by 2008 to better manage the load, as the current 4kV circuits supply a peak load of 3 MVA and a new 12kV circuit could offload existing ones.
Comments: The simplest solution to this violation would involve the rebuild of the 5.7km section of line between the Bridgewater and Bridgewater East sub-stations followed by the abandonment of the section between the Bridgewater East and...
AI summary The text discusses two potential solutions to address a violation involving power line infrastructure: rebuilding a section of line between Bridgewater and Bridgewater East sub-stations and abandoning another section, or constructing a new line tap to reduce load on the 69kV system and abandon an existing subtransmission line.
REDACTED 2026 ACE Plan NSEB IR-116 Attachment 1 Page 38 of 52 Station Name Transformer I.D. Transformer Rating (MVA) Feeder kV (L-L) Feeder # Load 2002 Peak Amps Load 2002 Feeder MVA Calc 2002 Total MVA High Street 70W 70W-T51 Built 1957 5...
AI summary The text presents a table with details about transformers, feeders, and load data for various stations in Nova Scotia. It includes transformer ratings, feeder voltages, load peak amps, and MVA values for different years, providing a historical overview of electrical infrastructure and usage.
Add Capacity to 70W and Offload 89W This option requires a second transformer at 70W to offload 89W circuits. This location has a HV bus, switch, transformer pad, and low voltage bus already in place, although two of the bays in the LV bus...
AI summary This section outlines the plan to add capacity at 70W by installing a new transformer and reconfiguring existing circuits to offload 89W. It includes upgrading distribution lines, replacing a failed submarine cable, and modifying circuits to serve new developments and redistribute load.
Replace Transformer 89W-T1 This option requires that the existing 8.4/11.2 MVA transformer at Bridgewater East be replaced by a new 15/20/25 MVA unit. In 2004, it involves installing a mobile at 89W; Moving 89W-T1 to stores; Replacing the...
AI summary The replacement of the 8.4/11.2 MVA transformer at Bridgewater East with a new 15/20/25 MVA unit involves multiple steps, including installation of a new transformer, expansion of the site, and construction of new circuits to accommodate future demand.
Use 99W-T62 Tertiary to Offload 89W This alternative makes use of the fact that there is 12.5kV (delta) available from the tertiary windings of the power transformers within the Bridgewater EHV Sub-station 99W. In 2004, it involves install...
AI summary The proposal involves using the 12.5kV tertiary windings at Bridgewater EHV Sub-station 99W to offload 89W-301 by upgrading infrastructure, reconfiguring circuits, and replacing cables, ultimately reducing the load on 89W-T51 to 11MVA.
5. TRANSFORMATION Capacity for any individual transformation point shall, under nominal system conditions, be sufficient to meet the daily load requirements after due consideration is given to the following: - a) Economic dispatch or outag...
AI summary This section outlines requirements for ensuring sufficient capacity at transformation points to meet daily load demands, considering factors such as economic dispatch, transformer loading, and reinforcement needs under contingency scenarios. It references IEEE standards for transformer loading practices.
Line No: L7001 Work Order Report Line No: L 700 1 Work Order l Rep ort L7001-012 230-T-G(O) 60 0 60 Woods Rd off end of Back Road follow 138kv ROW. 45 24' 4.0835"N -63 19' 45.3285"W No 2026S 10.7 9.854 9999 9999 9999 7214555 1-2 years No G...
AI summary This document outlines three work orders related to maintenance and repair activities on a 138kV power line in Nova Scotia. Each entry details the location, condition of the infrastructure, and the required work, such as reinsulating and replacing components.
2026 ACE Plan NSEB IR-117 Attachment 1 Page 6 of 7 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Line No: L7001 Work Order Report L7001-095 230-T-G(O) 70 0 70 Andrew Brook 4 M N45- 15-50.90 W63-23-57.3 Gravel Road Brookfield Lumber 45 15' 46...
AI summary The document contains two work order reports for infrastructure maintenance tasks in Nova Scotia. Both reports describe deteriorating conditions in electrical infrastructure, including insulator grout deterioration, weather cracks in spar arms, and a broken insulator. The recommended actions include replacing spar arms and reinsulating the affected areas.
2026 Annual Capital Expenditure (ACE) Plan (NSEB M12619) NSPI Responses to NSEB Information Requests 1 Request IR-130: 2 3 Distribution Capital Investments 4 5 D01: C0080266, New Distribution Right of Way Phase 11 6 7 What is the expected...
AI summary The document discusses the 2026 Annual Capital Expenditure (ACE) Plan, specifically addressing questions related to the New Distribution Right of Way Phase 11. It outlines expected improvements in SAIDI and SAIFI metrics due to vegetation management work, acknowledges the difficulty in quantifying improvements in CKADI and CKAFI, and provides details on the cost and impact of 2024 vegetation management work.
NON-CONFIDENTIAL 1 Please note, updated overhead standards is not a specific project. Rather, new, updated standards 2 are incorporated into all distribution projects.
AI summary The text indicates that updated overhead standards are not a specific project but are instead incorporated into all distribution projects, suggesting a broader implementation across the distribution system.