Tuesday, December 23, 2008

Giant catfish blender?

Nation's First 'Underwater Wind Turbine' Installed in Old Man River

The nation's first commercial hydrokinetic turbine, which harnesses the power from moving water without the construction of a dam, has splashed into the waters of the Mississippi River near Hastings, Minnesota.

The 35-kilowatt turbine is positioned downstream from an existing hydroelectric-plant dam and — together with another turbine to be installed soon — will increase the capacity of the plant by more than 5 percent. The numbers aren't big, but the rig's installation could be the start of an important trend in green energy.

That is very interesting but this part down toward the end of the article is more interesting to me.

Verdant has been testing its own turbine design to capture tidal flow in New York's East River, but it hasn't been easy.

"Verdant has spent more money on permitting their East River project that than they did on hardware," said Roger Bedard, a researcher at the Electric Power Research Institute, who has studied water-current–based energy generation.

So the major obstacle was not the technology but the permitting?

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