Offshore renewable energy storage
An Energy Bag has been developed for undersea compressed air energy storage (CAES) of offshore wind, wave and tidal power.
June 4, 2011 - renewableenergyfocus.com
Canadian Thin Red Line Aerospace has developed the Energy Bag, which will see a prototype anchored to the seabed off the coast of Scotland this summer as part of a renewable energy research project led by Professor Seamus Garvey of the University of Nottingham, UK. The project is being supported by E.ON.
Offshore renewable energy devices such as wind turbines fill the balloon-like underwater bags with compressed air that can later drive electrical generators on demand.
The technology, which is particularly suited to countries with relatively deep water near the coast, can be anchored at a depth of around 600 m where the pressure of the ocean takes on the role of high performance pressure vessel.
The pressure at this depth ensures high energy storage density, constant pressure and compatibility with existing high efficiency turbine technology.
Red Thin Line has performed concept development of volumes to 6000 m3.
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