Oyster Creek nuclear power plant resumed full power operations Saturday after workers completed repairs to an electrical system that regulates steam used to turn the plant’s turbines, a spokesperson for the plant said.
“The unit automatically shut down on Sunday, March 22. After repairs were completed, technicians inspected and tested the electrical system before returning the unit to service,” said plant spokeswoman Suzanne D’Ambrosio.
Failure of the regulator, which controls steam pressure, triggered the shut down at 2:14 p.m. last Sunday, D’Ambrosio said.
Last month, the Nuclear Regulatory Commission (NRC) considered issuing the plant a “yellow” safety reprimand after inspectors found problems with two of five pressure valves in the reactor based in Lacy, NJ. The NRC uses a color-coded safety-review system of green, white, yellow and red. A yellow designation signifies a condition that is of “substantial safety significance.”
The plant produces 636 net megawatts of electricity at full power.
Last year, the NRC issued a “white” performance indicator on Oyster Creek after the plant had four unplanned shutdowns, or “scrams,” in 2013 and 2014. Valve leaks and pressure-cracking contributed to some of those shutdowns.