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SEGS : ウィキペディア英語版
Solar Energy Generating Systems

Solar Energy Generating Systems (SEGS) in California, with the combined capacity from three separate locations at 354 megawatts (MW, 474,700 hp), is now the world's second largest solar thermal energy generating facility, after the commissioning of the even larger Ivanpah facility in 2014. It consists of nine solar power plants in California's Mojave Desert, where insolation is among the best available in the United States. SEGS I–II (44 MW) are located at Daggett (), SEGS III–VII (150 MW) are installed at Kramer Junction, and SEGS VIII–IX (160 MW) are placed at Harper Lake ().〔(The Energy Blog: About Parabolic Trough Solar )〕 NextEra Energy Resources operates and partially owns the plants located at Kramer Junction and Harper Lake.
A tenth plant (SEGS X, 80 MW) had been in construction and SEGS XI and SEGS XII had been planned by Luz Industries, but the developer filed for bankruptcy in 1992,because it was unable to secure construction financing.〔(【引用サイトリンク】title=Large Solar Energy Projects )
==Plants' scale and operations==
The plants have a 354 MW net (394 MW gross) installed capacity. The nameplate capacity, which operating continuously, would deliver the same net power output, coming only from the solar source is around , representing a 21% capacity factor. In addition, the turbines can be utilized at night by burning natural gas.
NextEra claims that the solar plants power 232,500 homes (during the day, at peak power) and displace 3,800 tons of pollution per year that would have been produced if the electricity had been provided by fossil fuels, such as oil.〔(【引用サイトリンク】format=PDF )
The facilities have a total of 936,384 mirrors and cover more than . Lined up, the parabolic mirrors would extend over .
As an example of cost, in 2002, one of the 30 MW Kramer Junction sites required $90 million to construct, and its operation and maintenance cost was about $3 million per year (4.6 cents per kilowatt hour).〔"Reducing the Cost of Energy from Parabolic Trough Solar Power Plants", NREL, 2003〕 With a considered lifetime of 20 years, the operation, maintenance and investments interest and depreciation triples the price, to approximately 14 cents per kilowatt hour.

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「Solar Energy Generating Systems」の詳細全文を読む



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