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The Alvin W. Vogtle Electric Generating Plant, also known as Plant Vogtle, is a 2-unit nuclear power plant located in Burke County, near Waynesboro, Georgia, in the southeastern United States. It is named after the Alabama Power and Southern Company board chairman, Alvin Vogtle. Each unit has a Westinghouse pressurized water reactor (PWR), with a General Electric turbine and electric generator. Units 1 and 2 were completed in 1987 and 1989, respectively. Each unit is capable of producing approximately 1,200 MW of electricity when online, for a combined capacity of 2,400 MW. Southern Nuclear lists the capacity as 1,215 MW each, for a combined output of 2,430 MW.〔 〕 The twin natural-draft cooling towers are 548 ft (167 m) tall and provide cooling to the plant's main condensers. Four smaller mechanical draft cooling towers provide service water cooling to auxiliary safety and non safety components and remove the decay heat from the reactor when the plant is offline. One natural-draft tower and two service water towers serve each unit. In 2009, the NRC renewed the licenses for both units for an additional 20 years, to the 2040s. Construction of two additional AP1000 reactors (3 and 4) are underway. Natural-draft type cooling towers were also selected and the two new cooling towers will also be nearly 550 feet tall. The certified construction & capital costs for these two new units were originally 4,418 million which escalated to an estimated $5,045 million according to the Twelfth Semi-annual Vogtle Construction Monitoring Report. 〔 〕 This last report blames the latest increase of costs to Contractor not completing work as scheduled. Though the utility suffered some of the cost increases resulting from the delay, protections in the EPC (Engineering, Procurement, Construction) agreement largely insulate the utility from these cost increases. ==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.〔http://www.nrc.gov/reading-rm/doc-collections/fact-sheets/emerg-plan-prep-nuc-power.html〕 The 2010 U.S. population within of Vogtle was 5,845, a decrease of 16.3 percent in a decade, according to an analysis of U.S. Census data for msnbc.com. The 2010 U.S. population within was 726,640, an increase of 8.8 percent since 2000. Cities within 50 miles include Augusta (26 miles to city center). The Nuclear Regulatory Commission's estimate of the risk each year of an earthquake intense enough to cause core damage to the reactor at Vogtle was 1 in 140,845, according to an NRC study published in August 2010.〔http://msnbcmedia.msn.com/i/msnbc/Sections/NEWS/quake%20nrc%20risk%20estimates.pdf〕 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「Vogtle Electric Generating Plant」の詳細全文を読む スポンサード リンク
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