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The Ludington Pumped Storage Plant is a hydroelectric plant and reservoir in Ludington, Michigan. It was built between 1969 and 1973 at a cost of $315 million and is owned jointly by Consumers Energy and Detroit Edison and operated by Consumers Energy. At the time of its construction, it was the largest pumped storage hydroelectric facility in the world. == Characteristics == It consists of a reservoir deep, long, and wide which holds of water. The reservoir is located on the banks of Lake Michigan. Because impervious bedrock is more than below the reservoir, the builders had to line the reservoir with a layer of asphalt and clay to prevent water seeping into the ground. The power plant consists of six reversible turbines that can each generate 312 megawatts of electricity for a total output of 1,872 megawatts.〔(Ludington Pumped Storage ), ConsumersEnergy.com website.〕 Water is delivered from the upper reservoir to the turbines by six penstocks each long that taper from in diameter. At night, during low demand for electricity, the turbines run in reverse to pump water uphill from Lake Michigan into the reservoir. The plant takes advantage of the natural steep sand dune landform of eastern Lake Michigan. During periods of peak demand water is released to generate power. Electrical generation can begin within two minutes with peak electric output of 1872 MW achieved in under 30 minutes. Maximum water flow is over per minute. This process was designed to level the load of nearby nuclear power plants on the grid. It also replaces the need to build natural gas peak power plants used only during high demand. The Ludington Pumped Storage plant is connected to six 345-kV Transmission lines, all owned and maintained by METC, a subsidiary of ITC Holdings. 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「Ludington Pumped Storage Power Plant」の詳細全文を読む スポンサード リンク
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