An Ocean Power Technology power-generating buoy is now generating electricity off Hawaii. Most excellent!
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It uses a socket on the sea floor The Wave Hub, a groundbreaking renewable energy project that is set to become the UK’s first offshore facility dedicated to wave energy, has been installed off the North Coast of Cornwall. Four wave energy generation devices will connect their arrays into the Hub, allowing developers [...] The Oyster 2 wave energy converter will output 800kW and generates power from the motion of ocean waves. This version is more powerful, modular, has few moving parts. Twenty of them could power 12,000 homes. Here’s how it works Tip: Inhabitat [...] By 2020, Scotland expects to power 750,000 homes with commercial-scale wave and tidal power Discover Magazine has a slideshow of the wave and tidal devices that will be used, such as the pictured tidal turbine. PS These devices do not include Scotland’s vast potential amount of offshore wind power. That’s a whole separate subject. [...] The platform is self-stabilizing, doesn’t need to be tethered to the ocean floor, and designers say it could run for decades with little maintenance. I’m unclear on how it could not drift and how the power lines are connected to shore. More info at Ecofriend, Inhabitat, and Hexicon. [...] Sheep graze among sun-tracing PV panels. Solarpark in Rodenas, North Friesland. Photograph: Bert Bostelmann/Getty Images A proposed $50 billion grid of underseas cables connecting renewable energy sources in nine European countries may become a reality – and offer a reliable, weather-proof supply of clean energy from sun, wind, and wave. The US should do [...] The wave-powered generator is a hinged flap connected to the sea-bed, with each wave moving the flap to drive a hydraulic piston. Sooner or later someone will devise a low-maintenance, high-efficiency way to create power from ocean waves. The WaveRoller is hidden from view and uses kinetic energy to drive hydraulics. Unusually, for wave power concepts, this converts the energy of ocean swells under the platform into air pressure which turns a wind turbine. The company’s previous demo in 2007 proved it works. It works by trapping a hollow airspace above the ocean; pushing up into a 100 square metre tunnel in the 500 tonne [...] The Deep Green underwater turbine captures the power of the ocean just like a kite in wind. |  | ||||
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