Wave power is a renewable energy source that can be harnessed using three main types of collectors: buoyant moored devices that float on the surface or below, hinged contour devices that follow wave motion at joints to create power, and oscillating water columns where wave motion acts like a piston to pump air and drive a turbine. Future prospects for wave power include the first US license granted to a company for a wave project and an agreement for a two megawatt wave energy project off California's coast.
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