Pacific Gas & Electric Company and Westinghouse Electric Company signed a $14 million contract for Westinghouse to chemically clean the secondary sides of Diablo Canyon’s eight steam generators.
Separately, PG&E and Westinghouse extended their long-standing tubesheet-cleaning contract in a transaction valued in excess of $1 million.
According to Westinghouse, the cleaning, to be undertaken in 2004, will mitigate tube corrosion and help maintain or increase safety performance margins, thereby allowing the plant to operate at 100 percent of rated output.
This course of action is also said to forestall the potential for the costly replacement of the current steam generators.
Pacific Gas and Electric Company’s Diablo Canyon Power Plant provides electricity for more than two million northern and central Californians from its two 1,100 megawatt units.
Over its lifetime, Diablo Canyon has been up and running more than 80 percent of the time, compared with the US national average of 70 percent for the nuclear industry.