After weeklong shutdown, Pilgrim nuclear plant back online
PLYMOUTH – Entergy began firing up Pilgrim Nuclear Power Station Sunday night, exactly a week after shutting the plant down for a steam leak associated with the water supply system to the reactor. Spokeswoman Carol Wightman wrote in an email that Entergy, the owner-operator of the Plymouth plant, “took advantage of the plant being offline to perform other maintenance that cannot be done while the plant is operating.”
Pilgrim had not been operating at full power since Aug. 22, when a breaker tripped, cutting power to all three major water pumps that supply the reactor. Operators immediately shut the plant down. A faulty wiring cable was replaced, and the plant was restarted on Aug. 26, but only two of the three pumps worked.
Plant operators initially believed the motor in the third pump had burned out, but when they replaced it the pump still failed. The problem was then believed to be electrical.
In her email Monday morning Wightman did not comment on whether the cause of the failed pump had yet been resolved.
According to the Nuclear Regulatory Commission website, the plant is currently at 45 percent power.