Fermi 2 nuclear power plant shut down after workers found a water leak within the dry well that encloses its reactor.
Crews shut the plant down around 7 a.m. Thursday morning when a monitoring system took over as a safety measure and the plant shut down automatically, said DTE spokesman Guy Cerullo. The plant, operated by DTE Energy Co., is in Frenchtown Township, MI, along Lake Erie.
Cerullo said officials worked through the weekend to determine an exact cause. He said the leak — which ended up contained — was from a system that cools heat exchanges in the plant and not the reactor, which remains safe.
Fermi has been in operation since Jan. 1988, after a construction period that spanned 20 years.
Its operating units include Detroit Edison, an electric utility serving 2.1 million customers in Southeastern Michigan; MichCon, a natural gas utility serving 1.2 million customers in Michigan; and other non-utility, energy businesses focused on gas storage and pipelines, unconventional gas production, power and industrial projects, and energy trading.