Commonwealth Edison

Commonwealth Edison Co., 1981, Zion Probabilistic Safety Study, Chicago, IL. 

No new nuclear plants have been built in the United States since 1978. In early 1998, Commonwealth Edison announced it would shut down its two Zion units and Millstone One in Connecticut was retired last year. Utilities have shut down operating plants, and more plants are likely to be closed as the electricity system in the US. deregulates. The Energy Information Administration notes that, if no new plants are built, nuclear power in the U S. is likely to drop by over 40% in the next 20 years. 

Most recently, PECO Energy and Commonwealth Edison s parent company Unicom announced plans to merge. Once finalized the nearly 32 billion deal will mean that the new company will own and operate 14 nuclear units...not counting AmerGen-PECO Energy s joint venture with British Energy—that is in the process of purchasing six additional nuclear units so far. 

GEODE [General Electric organic destruction] A development of the Ultrox process in which a combination of ozone and ultraviolet radiation is used to oxidize traces of organic compounds in water. Developed by the General Electric Company and demonstrated at the Commonwealth Edison nuclear power plant at Dresden, IL, in 1989. The requirement was to reduce the concentration of total organic carbon in the process and makeup waters to the low parts-per-billion range. 

Commonwealth Edison Company in Chicago offers its Least Cost Planning load reduction program. In this program, businesses agree to curtail or reduce their electricity consumption to prescribed limits when the utility requests it. They are compensated with a special electricity rate that is performance-based. The worst performance during any curtailment period becomes the base for electricity charges. 

Amersham Corporation Commonwealth Edison Consolidated Edison Duke Power Company Eastman Kodak Company Florida Power Corporation Landauer, Inc. 

Committee on Interagency Radiation Research and Policy Coordination Commonwealth Edison Commonwealth of Pennsylvania Consolidated Edison Consumers Power Company... 

Commonwealth Edison Company PECO Energy Company Exelon Generation Company, LLC... 

The reactor to be discussed is the large FWR manufactured by the Westinghouse Electric Company, which has been built for the Diablo Canyon station of the Pacific Gas Electric Company, the Donald C. Cook station of American Electric Power Corporation, and the Zion station of Commonwealth Edison Company. Rated capacities of 3250 MW (thermal) and 1060 MW (electric) have been used. The following brief description of this reactor was abstracted from the Safety Analysis Report of the Doiudd C. Cook station [Al]. 

In U.S. V. Commonwealth Edison, 620 F. Supp. 1404 (N.D. 111. 1985), the EPA sued Commonwealth Edison to require it to identify where PCBs had been spilled, investigate the extent of the spill, notify property owners and clean up the sites. The Court found that the EPA properly invoked TSCA 7. although the EPA had already promulgated PCB regulations. 

The first commercial-size BWR was the Dresden Nuclear Power Plant. This plant was owned by the Commonwealth Edison Company and built by the General Electric Company at Dresden, Illinois (about 50 miles southwest of Chicago). The plant was a 200-MWe facility which operated from 1960 to 1978. 

Dresden-1 was one of the first commercial nuclear reactors. Put into service in July 1960, this 200-mWe BWR, located outside Morris, IL, was owned and operated by Commonwealth Edison. The reactor and turbine set were both designed and manufactured by General Electric. The unit was taken out of service in October 1978. 

Two of the five initial rate quotations were on large-scale power reactors—Yankee Atomic at Rowe, Massachusetts and Commonwealth Edison at Dresden, Illinois. The yearly premium for the Yankee plant would be 130,000 for Commonwealth Edison, 250,000. The other three... 

By 1955 the AEC had approved several sites for power reactors under the civilian program. Commonwealth Edison s Dresden, Illinois site. Consolidated Edison s Buchanan, New York location for its Indian Point facility, and the PRDC reactor at Lagoona Beach, Michigan were all... 

The 1962 siting criteria reflected and were consistent with prior site decisions on commercial power reactors. This was shown through the application of the criteria s calculations to several reactor projects that had been proposed or were authorized for construction. The Commonwealth Edison Dresden reactor, for example, with a power level of 630 megawatts thermal, had a calculated exclusion distance of 0.5 miles, which corresponded exactly with the actual exclusion distance at the... 

AEG issued first construction permits for two large-scale nuclear power facilities—Consolidated Edison s Indian Point plant and Commonwealth Edison s Dresden reactor. Safeguards Committee sent cautionary letter to the Commission on the PRDC reactor. 

AEC issued an operating license to the Commonwealth Edison Dresden facility, the first large-scale privately owned plant to receive a license to operate. 

Monsanto Chemical Company/Union Electric Company, "Plutonium-Power Reactor Feasibility Study" Dow Chemical Company/Detroit Edison Company, "Study of Materials and Power Producing Reactors" Commonwealth Edison Company/Public Service Company, "Report on Power Generation Using Nuclear Energy" Pacific Gas and Electric Company/Bechtel Corporation, "Industrial Reactor Study," Development of Atomic Power File, AEC/DOE. 

CM 1093 (28 June 1955), AEC/DOE AEC 785/6 (8 Aug. 1955), AEC/NRC. Letters were sent to the following probable operators Detroit Edison, Yankee Electric Company, Consumers Public Power District, Consolidated Edison of New York, Commonwealth Edison and to the following vendors North American Aviation, AMF Atomics, Babcock and Wilcox, General Electric, and Westinghouse. 

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