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Fermi 2 plant shuts after hydrogen found in water

Associated Press Published: November 7, 2012
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FRENCHTOWN TOWNSHIP, Mich. (AP) — DTE Energy Co. says it shut down its Fermi 2 nuclear power plant because of an excess of hydrogen gas in a cooling system for the main electrical generator.

DTE spokesman Guy Cerullo tells the Monroe Evening News (http://bit.ly/PYlNXp ) that the plant shut down about 9:30 a.m. Wednesday.

Cerullo says operators saw that water in part of the cooling system for the generator contained higher than normal amounts of hydrogen.

The generator is on the non-nuclear side of the plant and has two separate cooling systems for its different sections. One uses water and the other hydrogen.

An increase in hydrogen gas in the water-cooled system decreases its efficiency.

The 1,100 megawatt reactor is next to Lake Erie in Monroe County's Frenchtown Township, near Monroe.