Entergy’s Palisades nuclear power plant near South Haven has been operating at about half power since an electrical problem caused a cooling tower to stop functioning on Saturday.
Palisades operators declared an emergency early Saturday afternoon after a breaker shutdown resulted in smoke and “the loss of cooling water tower pumps and fans and subsequently a loss of one cooling tower,“ according to a report filed with the U.S. Nuclear Regulatory Commission.
“Plant staff are working to determine what caused the problem, evaluate the damage and perform necessary repairs,“ NRC spokeswoman Viktoria Mytling said.
Mytling said that the plant may be required to shut down if it does not ensure that electrical transformers are functioning properly and restore one of the two sources of offsite power within 72 hours.
The Palisades plant has been cited by the NRC for ongoing problems involving human error.
When operating at full capacity the nearly 40 year old plant generates 798 megawatts of power and sells all of it to Consumers Energy.