Nova Scotia Power filed a UARB approval sheet for the completed $608,704 Trenton Unit 6 boiler superheater/reheater repair project (CI #39602), with outstanding invoices pending.

M03716 · CI# 39602 - P-510 - NSPI WO - U&U TRE6 - U&U Boiler Superheater/Reheater Repairs - $608,704$604K spent to date. This work has been completed. Invoices are still outstanding.

AI summary

Nova Scotia Power submitted CI #39602 dated November 24, 2010 seeking Regulatory Compliance approval for the Capital Expenditures associated with repairs to the Trenton Unit 6 (TRE6) boiler superheater and reheater sections, with a total project estimate of $608,704.38 against an original budget of $430,000.
Work was driven by non-destructive examination (NDE) findings during a planned outage, revealing flyash and sootblower erosion requiring 15 tube replacements in the reheat section, bifurcate shield redesign and replacement, pad repairs to thinned tubes, and thermowell replacement.
The project was not identified before the ACE 2010 plan was finalized and could not be deferred to 2011, as failure to complete repairs would have forced unplanned outages and replacement energy purchases prior to the next scheduled unit outage in 2012.
Contractor costs dominated the expenditure profile: Alstom boilermakers ($350,053), Alstom inspection ($66,109), and Alstom supervision/QA ($114,272), with materials (primarily shields and tubing) totalling $31,773.
The work was completed with in-service date of September 2010 and project close date of October 2010; the filing notes invoices remain outstanding as of the November 24, 2010 submission date.

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What was filed

Documents filed on this day

N-1 Work Order exhibits