U.S. Nuclear Plants
Three Mile
Island Pennsylvania �
Unit 1���� Nuclear system supplied by
Babcock and Wilcox |
Capacity Net MW(e) |
Generation
in 2003
Megawatthours |
Capacity
Factor |
Type |
On-line Date |
License Expiration Date |
816 |
6,197,031 |
86.5
% |
PWR |
April 19, 1974 |
April 19, 2014 |
�
PWR= Pressurized Light Water Reactor
Description: The Three Mile Island station is located
on 814 acres of an island near the state capitol at Harrisburg.� Three
Mile Island may be the most widely known nuclear power plant in the United
States due to an accident to its number 2 reactor.� The second reactor
was permanently shut down following an accident on March 28, 1979.�A combination
of equipment malfunctions and human error led to a loss of coolant.� It
remains the most significant accident on record at a U.S. nuclear power
plant.
Ownership: Three Mile Island (TMI) is owned by Exelon. It is operated by AmerGen Energy Company.
The Impact of
the Nuclear Industry on Pennsylvania
- Highlights : The First (U.S.) EIA Highlights Shippingport Power Plant
- 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 902. 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:
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