Seems to be a similarly foolish idea like wind turbines/mills! Like wind mills, not very reliable and most likely not very environmentally friendly at all! At what point would this form of power generation affect the currents, temperature, wild life etc. of our oceans?
"The sea is an unforgiving environment. It is corrosive, fouling, energetic and forceful ... In the winter of 1988, for example, a fierce storm in Toftestallen, Norway, slammed a wave-power plant that had been installed barely three years earlier. The unhinged tower collapsed and the station had to be rebuilt, only to be destroyed again by accident during an attempted improvement three years later. In 2009, meanwhile, a dozen underwater turbine blades were wrecked by strong tides in the Bay of Fundy, Canada, less than a month after they had been plumbed in"
Turning water into watts – Physics World: The oceans seem like an obvious source of renewable energy, but there are huge technical and financial hurdles to harnessing their vast power. Stephen Ornes investigates
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