UPDATE 1-PG&E cuts California Diablo Canyon 1 unit to 50 pct power

Tue Oct 15, 2013 12:55pm EDT

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Oct 15 (Reuters) - California power company PG&E Corp
 said it reduced the 1,122-megawatt Unit 1 at the Diablo
Canyon nuclear power plant to 50 percent power on Monday to work
on a feedwater pump.
    The company said in an email on Tuesday that it decided to
reduce Unit 1 after one of two main feedwater pumps
    Feedwater pumps are part of the non-nuclear, steam side of
the plant. Their purpose is to increase the pressure of water
high enough to enter the steam generator.
    PG&E said that in addition to the two main feedwater pumps,
there are three backup auxiliary feedwater pumps.
    The company did not say when the unit would return to full
    Unit 2 continued to operate at full power, the company said.
STATE:     California   
COUNTY:    San Luis Obispo County   
TOWN:      Avila Beach about 183 miles (294 km) northwest   
           of Los Angeles   
OWNER(S):  PG&E   
CAPACITY:  2,240 MW   
UNIT(S):   1 - 1,122 MW Westinghouse pressurized water reactor  
           2 - 1,118 MW Westinghouse pressurized water reactor  
FUEL:      Nuclear   
DISPATCH:  Baseload   
1968 -     Start of plant construction   
1985 -     Unit 1 enters commercial service   
1986 -     Unit 2 enters commercial service
2009 -     PG&E files with NRC to renew original 40 year
           operating licenses for 20 additional years
2024 -     Unit 1 license to expire unless renewed   
2025 -     Unit 2 license to expire unless renewed
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