Blog owner's question: Do water turbines have cages to protect sea life from the blades? They apparently exist. But are they used? Ask your local politicians and whatever company is proposing to supply water turbines in your area. The one below may or may not have protection for sea life and may or may not result in increased water temperatures.
Neptune Renewable Energy Launches Proteus Tidal Power Generator
Posted on Monday, December 14, 2009 posted by posted by Mak @ 2:36 AM
Neptune Renewable Energy has announced the development of a breakthrough tidal power generator, which will undergo sea trial at Hull early next year. The generator dubs the action of Proteus,which consists of a 6m x 6m vertical axis, crossflow turbine mounted within a patented, symmetrical Venturi diffuser duct and beneath a very simple steel deck and buoyancy chambers. Similar to Proteus,the £1 million, 150-ton generator is being claimed to be 30% more efficient than conventional hydro dam designs and can provide a continuous supply ofrenewable energy.
The state-of-the-art generator features a steel hull, turbine and buoyancy chambers, which allows it to work equally well in ebb and flow tides. The system consists of a vertical axis cross-flow turbine mounted within symmetrical venture diffusers that efficiently convert tidal energy into electricity.
NREL has selected the Humber Estuary for the first deployment of Proteus, as given its depth and tidal flow, is considered one of the best locations in the British Isles for tidal stream power. Once deployed, the advanced Neptune Proteus NP1000 should generate at least 1000MWh of electricity each year.
Tuesday, December 15, 2009
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