N-1Application - Redacted
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REDACTED (CONFIDENTIAL INFORMATION REMOVED) C0080228 HYD Hollow Bridge Generator Refurbishment REDACTED December 1, 2025 REDACTED (CONFIDENTIAL INFORMATION REMOVED) NSEB APPROVAL SHEET Project Title: HYD Hollow Bridge Generator Refurbishme...
AI summary The document is an NSEB approval sheet for the HYD Hollow Bridge Generator Refurbishment project, submitted by Nova Scotia Power Incorporated. It outlines the project's expenditure profile, budget amounts for 2025 and 2026, and includes authorization details from the Nova Scotia Energy Board.
Summary of Related CIs +/- 2 years: Pursuant to Section 11.2 of the CEJC, related CIs for Hydro projects include "work completed on the same generating unit and dam structures, but not necessarily the same asset." • No other projects in 20...
AI summary The summary outlines related Capital Investments (CIs) for Hydro projects under Section 11.2 of the CEJC, specifying that work on the same generating unit and dam structures is included but not necessarily the same asset. No projects are listed for the years 2024 to 2028, with the depreciation class and estimated life of the asset provided.
Why do this project? NS Power operates a comprehensive preventative maintenance program that includes inspections, condition assessments, and targeted maintenance to ensure safe and reliable hydro operations. The Hollow Bridge generator ro...
AI summary NS Power's preventative maintenance program failed to prevent a stator fault in the Hollow Bridge generator, leading to significant damage and the need for a complete rewind. The fault necessitates refurbishment to ensure reliable hydro operations and compliance with downstream water management requirements.
Why do this project this way? Two stator rewind options were evaluated, as outlined in Partially Confidential Attachment 3: Global VPI and B-Stage Coil. Global VPI (Vacuum Pressure Impregnation) involves fully re-insulating and impregnatin...
AI summary The document evaluates two stator rewind options, Global VPI and B-Stage Coil, concluding that Global VPI is more cost-effective and faster. Rotor refurbishment is necessary due to insulation fragility, and full generator replacement is deemed too costly and unnecessary given the projected life extension and performance after refurbishment.
Contingency Statement Contingency for this project has been determined using a combination of internal subject matter expert judgment, previous experience with hydro generator refurbishment projects, and the non-binding contingency guideli...
AI summary The contingency statement outlines a 20% contingency for a hydro generator refurbishment project, based on factors like potential deteriorated copper in the rotor windings, asbestos presence, and possible overtime or cost increases. The estimate is classified as Class 3, reflecting the need for detailed inspection and uncertainty in the project scope.
Description Unit Quantity Unit Estimate То tal Estimate Cost Support Reference Completed Simi Projects (FP#'s
AI summary The text presents a table with columns for project description, unit, quantity, unit estimate, total estimate, cost support reference, and completed similar projects. It is part of a regulatory proceeding document and appears to outline capital expenditure details.
This project is being submitted as a Class 3 estimate. The defined deliverables of this project indicate that 88% of the Class 3 deliverables have been completed. A contingency value of 20% was selected to account for specific risks such a...
AI summary The project is submitted as a Class 3 estimate with 88% of deliverables completed. A 20% contingency is included to address risks like deteriorated copper in rotor windings, asbestos, and unforeseen overtime or material cost increases.
100753Board Decision Letter
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January 29, 2026 [[email protected]](mailto:[email protected]) Lana Myatt Senior Regulatory Analyst Nova Scotia Power Inc. PO Box 910 Halifax, NS B3J 2W5 Dear Ms. Myatt: M12596 – Nova Scotia Power Inc. – CI C0080228 – HYD Hollow Br...
AI summary Nova Scotia Power Inc. (NS Power) has requested approval for a $2,587,170 capital expenditure to refurbish the Hollow Bridge Hydro Unit generator, which suffered significant damage due to a stator fault. The unit has been operating since 1940 and produces 25.5 GWh annually. NS Power submitted a confidentiality request under Rule 12 of the Board Regulatory Rules, which was approved.
nature of the faults, it was determined that repairing the unit with bypassed coils alone was no longer feasible. All coils will be removed, and any faulty sections will be replaced. Document: 327382 Based on the information provided, the...
AI summary The Board has approved NS Power's request for a capital expenditure of $2,587,170 to repair a unit where bypassed coils were no longer feasible, requiring the removal and replacement of all faulty sections.
NSEB APPROVAL SHEET HYD Hollow Bridge Generator Refurbishment Project Title: CI Number: C0080228 Date: December 1, 2025 Expenditure Profile Year Budget Amount Project Estimate Type of Filing Capital Project Authorization 2025 2026 715,901...
AI summary The document outlines the approval of the HYD Hollow Bridge Generator Refurbishment project by the Nova Scotia Energy Board. The project has a total estimated cost of $2,587,170, with expenditures planned for 2025 and 2026. The filing type is categorized as Unforeseen and Unbudgeted (U&U) and Planned & Advanced (P&A).
100142Letter NSPI re: Capital Items Filed Outside the Quarter Package
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December 1, 2025 Crystal Henwood Clerk of the Board Nova Scotia Energy Board 1601 Lower Water Street, 3rd Floor Halifax, NS B3J 3S3 Re: Capital Items Filed Outside the Quarter Package Dear Ms. Henwood: Enclosed for your review and approval...
AI summary A document dated December 1, 2025, from an individual to the Clerk of the Board at the Nova Scotia Energy Board, enclosing capital items for review and approval.
2025 ACE Plan Capital Items for Subsequent Approval • CI C0053699 – Renewable to Retail Implementation - $5,644,468 2025 ACE amount $5,062,652 $4,635,351 spent as at September 30, 2025 Technical setup work and business process updates have...
AI summary The document outlines two capital items under the 2025 ACE Plan for subsequent approval: the Renewable to Retail Implementation and the HYD Lower Great Brook Stoplog Replacement. The former has spent $4,635,351 as of September 30, 2025, with final commissioning work pending. The latter has spent $1,418,999 as of the same date, with partial confidentiality.
2024 ACE Plan Capital Items for Subsequent Approval • CI C0032664 – Energy Control Centre – Optimization Tools - $7,486,068 2024 ACE amount $4,329,150 $1,776,697 spent as at September 30, 2025 Non-Confidential
AI summary The document lists a capital item related to the Energy Control Centre and Optimization Tools under the 2024 ACE Plan, including the total cost, allocated ACE amount, and expenditures as of September 30, 2025.
Final Cost (FIN) Capital Items - CI 52314 1C-GT1 and 1C-UT1 Transformer Replacement $1,678,006 Original approval received in the 2018 ACE Plan for $2,032,393 Decreased spend amount $354,387 Non-Confidential - CI 51956 6P Mobile Substation...
AI summary The document outlines two capital items with reduced spending compared to their original approvals. The first item is the replacement of transformers with a decreased spend of $354,387, and the second item is a mobile substation rewind with a decreased spend of $880,345. Both were originally approved under the 2018 ACE Plan.
Unforeseen & Unbudgeted (U&U) Capital Items • CI C0080228 – HYD Hollow Bridge Generator Refurbishment - $2,587,170 $0 spent as at September 30, 2025 Partially Confidential
AI summary The document lists an unforeseen and unbudgeted capital item, specifically the HYD Hollow Bridge Generator Refurbishment, with a cost of $2,587,170 and no spending as of September 30, 2025. The item is partially confidential.
Request for Confidentiality Pursuant to Rule 12 of the Board Regulatory Rules, NS Power requests confidential treatment of certain portions of the material filed in support of the following Capital Work Orders: - 1. CI C0070486 HYD Lower G...
AI summary NS Power is requesting confidential treatment for parts of the material supporting two Capital Work Orders: CI C0070486 HYD Lower Great Brook Stoplog Replacement and CI C0080228 HYD Hollow Bridge Generator Refurbishment, under Rule 12 of the Board Regulatory Rules.
100753Board Decision Letter
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January 29, 2026 [[email protected]](mailto:[email protected]) Lana Myatt Senior Regulatory Analyst Nova Scotia Power Inc. PO Box 910 Halifax, NS B3J 2W5 Dear Ms. Myatt: M12596 – Nova Scotia Power Inc. – CI C0080228 – HYD Hollow Br...
AI summary NS Power applied for approval of a $2,587,170 capital expenditure to refurbish the Hollow Bridge Hydro Unit generator due to an unforeseen stator fault. The unit, operating since 1940, suffered significant winding damage, making partial repairs impractical. The Board approved a confidentiality request and received responses to information requests.
nature of the faults, it was determined that repairing the unit with bypassed coils alone was no longer feasible. All coils will be removed, and any faulty sections will be replaced. Document: 327382 Based on the information provided, the...
AI summary The Board has approved a capital expenditure request by NS Power for $2,587,170 to repair a unit with faulty coils, as repairing it with bypassed coils was no longer feasible.
NSEB APPROVAL SHEET HYD Hollow Bridge Generator Refurbishment Project Title: CI Number: C0080228 Date: December 1, 2025 Expenditure Profile Year Budget Amount Project Estimate Type of Filing Capital Project Authorization 2025 2026 715,901...
AI summary The document outlines the approval of the HYD Hollow Bridge Generator Refurbishment project by the Nova Scotia Energy Board. The project involves a total estimated cost of $2,587,170, with expenditures planned for 2025 and 2026. The filing type is classified as Unforeseen and Unbudgeted (U&U) and Planned & Advanced (P&A). The approval was signed by Dave Pickles, Chief Operating Officer of Nova Scotia Power Incorporated, on November 28, 2025, and by the Nova Scotia Energy Board on January 29, 2026.