UPDATE 1-Calif. San Onofre 3 reactor refuel 60 pct complete
NEW YORK, Dec 7 (Reuters) - Refueling and maintenance work on the 1,080-megawatt Unit 3 of the San Onofre nuclear power plant in California is about 60 percent complete, Southern California Edison (SCE) said on Tuesday.
Plant workers still had to conduct maintenance on a 4-kilovolt bus system and a reserve transformer, and inspect the ocean water cooling system, plant spokesman Gil Alexander said.
Work on the steam generators is on schedule and heading into the final weeks of production activities, he said. Remaining steam generator tasks include the completion of piping restoration, repairing the containment opening and replacing and tensioning the containment tendons.
SCE shut the reactor for three to four months of refueling, maintenance and to replace the steam generators on Oct. 10.
The company will not announce the exact date it expects the unit to return, Alexander said.
Last year, SCE replaced the Unit 2 steam generators during its refueling outage, which took almost seven months from late September to mid-April.
SCE has said it learned lessons during the Unit 2 project that should allow workers to finish the Unit 3 project faster. ----------------------------------------------------------- PLANT BACKGROUND/TIMELINE STATE: California COUNTY: San Diego TOWN: San Clemente about 60 miles (97 km) north of San
Diego OPERATOR: SCE OWNER(S): - Edison International's (EIX.N) SCE (78.21 pct)
- Sempra Energy's (SRE.N) SDG&E (20 pct)
- Riverside (1.79 pct) CAPACITY: 2,150 MW UNIT(S): - Unit 2 - 1,070-MW Combustion Engineering
pressurized water reactor
- Unit 3 - 1,080-MW Combustion Engineering
pressurized water reactor FUEL: Nuclear COST: $4.5 billion DISPATCH: Baseload TIMELINE: 1968 - Unit 1 (a Westinghouse pressurized water reactor)
enters service 1983 - Unit 2 enters service 1984 - Unit 3 enters service 1992 - Unit 1 retired 2010 - California state water board rules that SCE and
all power plants using sea water for cooling
switch to a closed loop system, like cooling
towers, to reduce fish kills. 2022 - Units 2 and 3 licenses expire (Reporting by Scott DiSavino; Editing by Lisa Shumaker and Dale Hudson)
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