Duane Arnold Energy Center
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The Duane Arnold Energy Center is located on a 500 acre (2 km²) site two miles north of Palo, Iowa, or eight miles northwest of Cedar Rapids. It is Iowa's only nuclear power plant. DAEC entered operation in June, 1974. It currently generates a net power output of approximately 620 megawatts using a single General Electric Mark I boiling water reactor. Like all Mark I reactors, its secondary containment was undersized in the original design and determined by the NRC to be 90% likely to fail if called upon. This design error was addressed in the 1980s with a bypass system that will vent radioactive gases from the core directly to the atmosphere in the event of an accident. The majority owner and operator is FPL Energy (70%). The Central Iowa Power Cooperative owns 20% and the Corn Belt Power Cooperative owns 10%. On 27 January 2006, FPL Energy (a subsidiary of FPL Group) closed the sale transaction of 70 percent ownership from Alliant Energy-Interstate Power and Light [1].
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