Topic:"Cost Considerations" in M12799

CI C0080101 – 539N-210 Big Island Subsea Cable Replacement (NSEB M12799) NSPI Responses to NSEB Information Requests 1 Request IR-4: 5 environmental risks, fishing activities, marine traffic, and electrical faults. 6 7 (b) Please describe...

AI summary NSPI is responding to NSEB information requests regarding the Big Island Subsea Cable Replacement project. The response indicates that NSPI has not yet identified the preferred technology or protection method for the new subsea cable installation. Protection measures will be determined after marine surveys and risk assessments are completed. Preliminary cost estimates for marine surveys and cable protection are based on local contractor pricing and may change with final specifications.

Request IR-15: - a. Has NS Power procured the services of a cable laying vessel for this project? - i. If not, what is the schedule for procuring such services? - A. If a vessel cannot be secured by this timeline, please identify any furth...

AI summary Request IR-15 asks whether NS Power has procured a cable laying vessel for a project, the timeline for procurement if not, and potential risks to project costs if procurement is delayed. The focus is on project execution risks and cost implications.

Request IR-16: - Please explain specifically how NS Power developed its cost estimates for each line item under - "Materials" and "Contracts" in the "Capital Project Detailed Estimate" on pdf pg. 5 of the - application.

AI summary Request IR-16 asks NS Power to detail its methodology for estimating costs under 'Materials' and 'Contracts' in the 'Capital Project Detailed Estimate' on page 5 of its application, seeking transparency in capital expenditure planning.

Request IR-17: - a) Please provide a comprehensive cost estimate for the trenched underground land cable option and a copy of NS Power's Economic Analysis Model (EAM) comparing it with the subsea cable option. Any costs incurred to date th...

AI summary Request IR-17 seeks cost estimates, route details, and technical comparisons for trenched underground vs. subsea cable options. IR-18 questions reliability ratings and maintenance practices for subsea and underground cables, noting discrepancies in outage risks and repairability. The subsea cable is rated 'High' for reliability, while the underground option is 'Moderate' due to potential excavation challenges.

er stated that severe weather conditions across the causeway, including wind, salt exposure and debris impacts, pose elevated risks to overhead infrastructure when compared with the other two options. In response to the second set of IRs,...

AI summary Nova Scotia Power Inc. proposed replacing the Big Island Subsea Cable due to risks from weather conditions. They compared subsea and underground cable options, noting the subsea option has lower upfront costs and higher reliability, though the underground option has lower replacement costs. The Board approved the subsea cable replacement project with a total cost of $4,388,679.