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British, American and Norwegian engineers are in a race to design and build the holy grail of wind turbines - giant, 10MW offshore machines twice the size and power of anything seen before - that could transform the global energy market because of their economies of scale.

wind turbines offshore Aerogenerator 10mw greennumbers

On June 15th, as BP's catastrophic spill in the Gulf neared its third month, President Obama addressed the nation from the Oval Office. He had put an indefinite hold on plans to open up new coastal areas, including Florida and Virginia, to offshore exploration. And he had frozen all new permits to drill in deep waters for six months, to give a blue-ribbon commission time to study the disaster. "We need better regulations, better safety standards and better enforcement," the president insisted.

But Obama's tough-guy act offers no guarantee that oil giants like BP won't be permitted to repeat the same mistakes that led to the nightmare in the Gulf. Indeed, top environmentalists warn, the suspension of drilling appears to be little more than a stalling tactic designed to let public anger over BP's spill subside before giving Big Oil the go-ahead to drill in an area that has long been off-limits: the Arctic Ocean.

Arctic Ocean arctic bp oilspill offshore

Offshore wind has taken a back seat to offshore drilling for oil and natural gas in the current energy debate. But those wind-driven turbines probably will be operating long before oil platforms appear off Atlantic Coast states.

Delaware hopes to be the first state to construct a wind farm off its coast. The project, scheduled to be completed in 2012, is one of several offshore wind proposals that have cleared significant hurdles in recent months.

wind farm wind energy wind turbine offshore

Google has filed a patent for a “water-based data center” that uses the ocean to provide power and cooling

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