The Entergy (NYSE:ETR) Palisades nuclear plant in Michigan went offline early Sept. 16 due to a turbine trip, according to a report filed with the Nuclear Regulatory Commission (NRC).
The plant was at roughly 85% power and “performing a coast down in preparation for a refueling outage” when an alarm was received in the control room. Shortly after receipt of the alarm the turbine tripped, according to the report.
The initial investigation into the cause of the turbine trip appears to be “DEH power supply failure.”
As of early Sept. 16, seven of the nation’s 99 commercial nuclear units were offline, according to NRC.
Palisades is a roughly 800-MW pressurized water reactor (PWR), which was commissioned in the 1970s. Entergy purchased the nuclear plant from CMS Energy (NYSE:CMS) utility Consumers Energy in 2007.
It appears that Palisades completed its last refueling outage in March of 2014, according to Nuclear Energy Institute (NEI) data.