BC Hydro is replacing the stators in eight generators at its 1,668-MW Mica and 700-MW Peace Canyon hydroelectric projects.
Alstom Canada is designing, supplying, and installing equipment for Mica’s C$78 million (US$70.2 million) stator replacement.
Stators are being replaced in each of four Mica generators. Through that work, the utility says it expects to reduce forced outages and ensure reliability. Output of each unit will increase to 500 MW from 417 MW.
Work on Unit 4 is complete, with the unit returned to service. Work on Unit 3 is scheduled for completion in September, followed by Unit 1 in July 2008, and Unit 2 in July 2009.
At Peace Canyon, BC Hydro is replacing four original 1979-1980 vintage Mitsubishi 184-megavolt-ampere stators. The replacements are expected to reduce a risk of forced outages. The utility budgeted C$69 million (US$62.1 million) for the work.
Mitsubishi Canada Ltd. is supplying and installing that equipment.
The first stator replacement at Peace Canyon was completed in fall 2006. Work on the remaining three units is to be completed at the rate of one per year, with the last generator to be returned to service in fall 2009.