AI-generated summary
· Decision · 07/30/2010
NSURB approved Nova Scotia Power's $603,418 capital expenditure for PA damper replacement at Trenton Unit 6 during the 2010 planned shutdown.
AI summary
- The Nova Scotia Utility And Review Board issued a decision letter dated July 30, 2010, approving Nova Scotia Power Incorporated's request (CI# 39471) for $603,418 to replace primary air (PA) dampers at Power Infrastructure Trenton Unit 6 (TRE6).
- A recent inspection confirmed the pneumatic-drive PA dampers were very difficult to activate; temporary repairs had returned the unit to service but full replacement was deemed necessary for safe and reliable operation, including compliance with NFPA requirements for Primary Air Shut Off (PASO) dampers.
- The Board found that deferring the project would significantly increase the probability of future unscheduled outages and that completing replacement during the 2010 planned shutdown was a prudent and cost-effective course of action (Board Decision Letter, Doc. 179808.1).
- The project scope covers replacement of 6A & 6B hot air control dampers, PASO dampers, capacity dampers, and adjacent ductwork in the PA duct to coal pulverizers; total forecast cost of $603,418.11 exceeded the original estimate of $430,000, with the largest line item being a $363,436 power production contract (Approval Sheet, CI# 39471).
- The capital item was submitted pursuant to section 35 of the applicable regulatory framework as a Used and Useful (U&U) work order under $1 million.
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What was filed
Documents filed on this day
- 79547 Board Decision Letter
- 79547 Board Decision Letter
- 79548 Approval Sheet [Signed by Board]