Another outage at nuclear power plant in Mississippi raises concerns
/ AP
Jackson, Miss. — Another unplanned outage at Mississippi's Grand Gulf nuclear power plant is adding to regulators' concerns that reliability problems at the largest single-unit nuclear power plant in the United States may be affecting power markets.
Operators at the Entergy Corp. plant in southwest Mississippi took it offline Wednesday, citing problems with a turbine bypass valve. The outage came to light Tuesday when the federal Nuclear Regulatory Commission (NRC) announced a special inspection citing equipment issues "the agency wants to better understand."
"The two-member NRC team will spend about a week on site developing a chronology of the event, and evaluating the licensee's cause analysis and the adequacy of corrective actions," the company also said. "An inspection report documenting the team's findings will be publicly available within 45 days of the end of the inspection."
The plant has been running at reduced or zero power output for much of the time since 2016. That can stress power supplies and cause higher prices across Mississippi, Arkansas, Louisiana and eastern Texas. Tuesday, the commission said Grand Gulf was running at 18 percent power.
First published on December 18, 2018
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Another outage at nuclear power plant raises concerns
Regulators are concerned over reliability problems at the Grand Gulf, which is the largest single-unit nuclear power plant in the United States
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