Operators at Diablo Canyon nuclear power plant safely reduced power on Unit 2 in order to perform a planned cleaning of the unit’s ocean water intake tunnels and circulating water system, Pacific Gas and Electric Co. announced Saturday.
The tunnels and water system, which are located on the non-nuclear side of the plant, are cleaned to prevent a buildup of ocean debris and biological growth in the tunnels and the circulating water system, according to a company news release.
Equipment that supports the transmission of electricity to California’s electric grid will also be cleaned to reduce dust buildup, which can potentially cause an outage during rainstorms. PG&E said it has increased the frequency of these cleanings due to the drought.
Unit 1 is operating at full power. Unit 2 will return to full power after completion of the cleaning activities.