Topic:"Asset Retirement Obligation" in M12508

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." - 2024 CI C0059785 HYD BIF...

AI summary The document summarizes related Capital Investment (CI) projects for Hydro, including upgrades and replacements on the Mersey River Hydro System. It notes that depreciation is calculated over a 40-year life for the Hydraulic Production Plant.

CI C0080112 – HYD Big Falls Unit 6 Rotor Re-Insulation (U&U) - $1,025,626 (NSEB M12508) NSPI Responses to NSEB Information Requests 1 Request IR-1: 2 3 The application notes that this project is for the re-insulation of 42 out of 44 rotor...

AI summary The document outlines a request for information regarding the re-insulation of 42 rotor poles on Big Falls Unit 6's generator, including the cost of refurbishing two poles in 2023, dates of re-insulation, estimated lifespans, and reasons for any discrepancies. It also seeks details on the refurbishment of slip rings, brushes, and brush boxes.

Request IR-4: - The application notes that comprehensive electrical testing, including AC/DC drop tests, thermal - imaging, and visual inspection, confirmed internal issues within the pole windings, suggesting - degradation of both insulat...

AI summary The document discusses electrical testing findings that identified insulation and conductor lead degradation, as well as hot spots on slip rings and brush boxes. It requests explanations for these issues and whether an aging management program exists for these components.

Request IR-11: - In response to IR-3(a) and IR-4(c), NS Power stated that this generator has been offline for - various operational issues and projects over the last several years and risk to the overall health - of the generator is manage...

AI summary NS Power responded to IR-3(a) and IR-4(c) by explaining that the generator has been offline due to operational issues and projects, and that its health is managed through asset management principles. The request asks for asset management assessments and inspection data from 2023 and inquires why refurbishment was not performed earlier on rotor poles.