The Millstone 2 nuclear reactor in Connecticut remains shut after a power surge on July 3 made the grid unstable, according to a Dominion Resources Inc. (D:US) spokesman.
The 882-megawatt reactor, which wasn’t damaged in the incident, remains offline, and workers are performing maintenance not associated with the power surge, according to Ken Holt, a company spokesman. A lightning strike outside the plant may have caused the grid instabilities, he said.
Holt declined to say how long the shutdown would last.
Companies do not usually plan maintenance during the summer period because hot weather and pricing are favorable for business, said Paul Fremont, an electric utility analyst at Jefferies & Co. (JEF:US) “One would assume it’s unplanned maintenance.”
The National Regulatory Commission does not have any regulatory holds on the plant, said Diane Screnci, an NRC spokeswoman. When plants are down, companies sometimes perform maintenance that they cannot complete when the plant is operating, she said.
There are two operating reactors at the plant near New London, Connecticut. Millstone 3, which has a capacity of 1,155 megawatts, was unaffected by the power surge and is operating at full capacity, Holt said.
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