US Nuclear Plants - Calvert Cliffs

U.S. Nuclear Plants

Calvert Cliffs
Maryland

Unit 1 Nuclear system supplied by Combustion Engineering, Inc.
Capacity Net MW(e)	Generation in 2003 Megawatthours	Capacity Factor	Type	On-line Date	License Expiration Date
845	7,532,454	101.5 %	PWR	July 31, 1974	July 31, 2034
Unit 2 Nuclear system supplied by Combustion Engineering, Inc.
Capacity Net MW(e)	Generation in 2003 Megawatthours	Capacity Factor	Type	On-line Date	License Expiration Date
840	6,158,259	83.5 %	PWR	Nov. 30, 1976	August 31, 2036

PWR= Pressurized Light Water Reactor

Description: The Calvert Cliffs nuclear power plant made history. In 2000, it became the first U.S. nuclear power plant to receive a license extension (20-years) from the U.S. Nuclear Regulatory Commission. Soon after, South Carolina's Oconee plant also received a license extension reflecting what many regard as a change in the fortunes of the nuclear industry. History and trends aside, the plant is actually in a relatively quiet spot. It occupies a modest 380 acres of its 2,100-acre site, the rest being maintained in a natural state.

Ownership: The Constellation Energy Group is the sole owner and Constellation Nuclear operates the plant.

The Impact of the Nuclear Industry on Maryland

News item: Hail Caesar
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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