U.S. Nuclear Plants

Prairie Island
Minnesota

Unit 1 Nuclear system supplied by Westinghouse Electric Corporation
Capacity Net MW(e)	Generation in 2003 Megawatthours	Capacity Factor	Type	On-line Date	License Expiration Date
525	4,596,252	99.7 %	PWR	April 5, 1974	August 9, 2013
Unit 2 Nuclear system supplied by Westinghouse Electric Corporation
Capacity Net MW(e)	Generation in 2003 Megawatthours	Capacity Factor	Type	On-line Date	License Expiration Date
524	4,241,066	92.1 %	PWR	October 29, 1974	October 29, 2014

PWR= Pressurized Light Water Reactor

Description: Prairie Island is in Red Wing, Minnesota.

Ownership: Prairie Island is operated by the Nuclear Management Company and owned by Xcel Energy.

The Impact of the Nuclear Industry on Minnesota:

Highlights
Nuclear-provided Electricity Generation
Competition in the State Electricity Market
Environmental Trends: Emissions levels
Various Links to related sites.

Sources: Capacity, for purposes of this report, is the net summer capability as reported in Energy Information Administration (EIA) survey form 860, "Annual Electric Generator Report." Capacity Factor is a calculation in which the maximum possible generation (based on net summer capability) is divided into the actual generation than multiplied by 100 to get a percentage. Generation is the electricity output reported by plant owners on EIA survey form 906. Type of Unit: All U.S. commercial reactors currently in operation are one of two types: BWR (boiling water reactor) or PWR (pressurized light water reactor). The type is identified in EIA's Nuclear Power Generation and Fuel Cycle Report. Both the On-line Date and the License Expiration Date are reported annually in Information Digest by the U.S. Nuclear Regulatory Commission.

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