History
In the late 1960s, Iowa Electric Light & Power Co. (now Alliant Energy - West), Central Iowa Power Cooperative and Corn Belt Power Cooperative applied for a nuclear plant license with the Atomic Energy Commission (AEC). On June 17, 1970 a construction permit was granted and work began. The original plan was to complete construction in 40 months at an estimated cost of $250 million.
Construction was completed and the reactor reached initial criticality on March 23, 1974. The cost was $50 million over budget. Commercial operations began on February 1, 1975. The plant was licensed for 1,658 MWt. However, power operations were restricted to 1593MWt (about 535 MWe) until plant modifications were completed in 1985 to utilize the full licensed capacity.
In May 2000, the NRC granted a license transfer of the DAEC to Nuclear Management Company LLC (NMC). Ownership of the plant remained with Alliant, Central Iowa Power Cooperative and Corn Belt Power Cooperative, but NMC would manage the operation of the plant.
In 2001, a power uprate was approved by the NRC to 1,912 MWt. Scheduled outages since that time have added modifications to the plant that have allowed this power level to be sustained without restrictions or challenges to nuclear or industrial safety.
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. FPL Energy (now NextEra Energy Resources) also took control of the operations of the plant from NMC.
Read more about this topic: Duane Arnold Energy Center
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