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Energy Quote

It is time, as a matter of pride, as well as a matter of national security, for the United States of America to lead the world in the energy revolution, and not lag behind Japan or Germany.

Senator John Kerry

Wave Power

A Brief Description:

Harnessing power from ocean surface wave motion is a possibility which might yield much more energy than tides. The feasibility of this has been investigated, particularly in the UK. Generators either coupled to floating devices or turned by air displaced by waves in a hollow concrete structure would produce electricity for delivery to shore. Numerous practical problems have frustrated progress.

A prototype shore based wave power generator is being constructed at Port Kembla in Australia and is expected to generate up to 500 MWh per annum. The Wave Energy Converter has been constructed (as of July 2005) and initial test results have exceeded expectations in terms of energy production during times of low wave energy. The energy of waves crashing against the shore is absorbed by an air driven generator and converted to electricity. For countries with large coastlines and rough sea conditions the energy density of breaking waves offers the possibility of generating electricity in utility volumes. Excess power in periods of rough sea could be used to generate renewable hydrogen.

30 Jan 2007 10:54:36

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