Seawater Energy Technology Is Focus of Pilot Project in China
The U.S. defense and aerospace giant, Lockheed Martin, is partnering with a major Chinese company to build a pilot project off the southern Chinese coast that will use temperature differentials between the deep and shallow ocean to generate electricity.
The technology, known as ocean thermal energy conversion (OTEC), uses the heat from warm surface waters to boil a fluid with a low boiling point, such as ammonia, producing steam to drive turbines. Colder water is then pumped from 2,500 to 3,000 feet under the sea, which condenses the steam into liquid; the liquid can then be boiled again to produce more steam and power.
Lockheed Martin and its Chinese Partner, the Beijing-based Reignwood Group, said their project — the largest OTEC plant ever built — will produce 10 megawatts of power when it opens in 2017, enough to provide electricity for a large, planned resort that Reignwood is building.
Article appearing courtesy Yale Environment 360.
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