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U.S. Nuclear Plants



Callaway
Missouri      
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
1,143
9,699,589
96.6 %
PWR
Oct. 18, 1984
Oct. 18, 2024
PWR=Pressurized Light Water Reactor

Description: This nuclear power plant is located on a 5,228-acre site in Callaway County, Missouri.  Callaway unit 1 is the State's sole commercial nuclear unit.

Ownership: The Callaway plant is owned (100 percent) by the Ameren Corporation and operated by AmerenUE.

The Impact of the Nuclear Industry on Missouri:

  • News items: Missouri’s nuclear power plant avoided approximately 34,000 tons of sulfur dioxide emissions
  • 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.

Contact:

Release Date: August 4, 2004
Next Release Date: September 2005



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