The Fermi 2 nuclear power plant in southeastern Michigan shut down for repairs, DTE Energy officials said.
The plant went offline last Tuesday for crews to repair a component in the electrical distribution system, said the utility’s spokesman Stephen Tait.
Tait said the utility “saw indications through our monitoring program that required repairs.”
“The reactor is in a safe condition,” Tait said.
The shutdown was something DTE planned on and other repairs will take place.
The plant will come back online after the repairs end up conducted and testing is complete.
The Detroit-based utility’s plant is along Lake Erie in Monroe County’s Frenchtown Township.
In March, the reactor was down to 59 percent capacity due to a valve issue in the feed water system.
Fermi 2 is an 1,100-megawatt boiling water reactor that started operating in 1988 after a 20-year construction period that cost $5 billion.