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Peach Bottom Atomic Power Station, a nuclear power plant, is located southeast of Harrisburg in Peach Bottom Township, York County, Pennsylvania, on the Susquehanna River three miles north of the Maryland border. The Philadelphia Electric Company (later shortened first to PECO Energy and later to just PECO) became one of the pioneers in the commercial nuclear industry when it ordered Peach Bottom 1 in 1958. The U.S.'s first nuclear power plant (the Shippingport Reactor) had gone on line a year earlier. Peach Bottom Unit 1 was an experimental helium-cooled, graphite-moderated reactor. It operated from 1966 to 1974. The other two units, General Electric boiling water reactors, placed on-line in 1974, are still in operation on the 620-acre (2.5 km2) site. Both Units 2 and 3 are rated at 3,514 megawatts thermal (MWth), equivalent to about 1,180 megawatts of electricity (MWe) each. Their licenses run until 2033 (Unit 2) and 2034 (Unit 3). Peach Bottom is operated by the Exelon Corporation and is jointly owned by Exelon (50%) and Public Service Enterprise Group (PSEG) Power LLC (50%). Peach Bottom was one of the plants analyzed in the NUREG-1150 safety analysis study. ==Surrounding population== The Nuclear Regulatory Commission defines two emergency planning zones around nuclear power plants: a plume exposure pathway zone with a radius of , concerned primarily with exposure to, and inhalation of, airborne radioactive contamination, and an ingestion pathway zone of about , concerned primarily with ingestion of food and liquid contaminated by radioactivity.〔(【引用サイトリンク】title=NRC: Backgrounder on Emergency Preparedness at Nuclear Power Plants )〕 The 2010 U.S. population within of Peach Bottom was 46,536, an increase of 7.2 percent in a decade, according to an analysis of U.S. Census data for msnbc.com. The 2010 U.S. population within was 5,526,343, an increase of 10.6 percent since 2000. Cities within 50 miles include Baltimore (36 miles to city center).〔Bill Dedman, Nuclear neighbors: Population rises near US reactors, ''msnbc.com'', April 14, 2011 http://www.msnbc.msn.com/id/42555888/ns/us_news-life/ Accessed May 1, 2011.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Peach Bottom Nuclear Generating Station」の詳細全文を読む スポンサード リンク
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