AI-generated summary
· Application · unknown
Nova Scotia Power filed a final-cost work order application seeking UARB approval for the Lingan Unit 1 Low NOx Combustion Firing System at an actual cost of $3,875,373, under budget by $274,547.
AI summary
- Nova Scotia Power Incorporated submitted CI #28867 (Project S266) on July 30, 2010 to final-cost the installation of a Environmental Compliance Low NOx Combustion Firing System (LNCFS) on Lingan Unit 1, recording total actual expenditures of $3,875,373 against an approved budget of $4,149,920.
- The project was driven by a mandatory NOx emissions cap of 21,365 tonnes effective 2009 under Schedule C of Nova Scotia's Air Quality Regulations (N.S. Reg. 28/2005), making the LNCFS installation the lowest-cost compliance option for NSPI solid-fuel generating units.
- Lingan Unit 1 represented the third year of a four-year NOx Reduction Program spanning 2006–2009 that covered seven solid-fuel units (Lingan 1–4, Point Tupper 2, Trenton 5 and 6); three prior UARB-approved LNCFS installations on Lingan Units 2, 3, and 4 confirmed expected NOx reduction performance exceeding 50% intensity reduction.
- The variance explanation sheet (final-cost document) shows the $274,547 under-run was driven primarily by a materials/contracts ratio error in the original estimate — materials came in $929,216 under budget while contracts exceeded budget by $807,493 — offset by labour savings of ~$141,299 in regular labour and $66,212 in consulting.
- Capital Expenditures scope included overfire air system installation, burner and windbox modifications, waterwall offset corner tube panels, continuous emission monitors for NOx and CO, staff training, and post-outage performance testing, with work commencing October 2007 and placed in service January 2009.
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What was filed
Documents filed on this day
- N-1 Non-Confidential Work Order 7/30/2010