Free* power from slow currents

Kevin Drum and Mark Kleiman have both blogged about VIVACE, a new power-harnessing technology that aims to generate wattage from slow-moving water currents. Neither of them went the extra mile to find a helpful picture or YouTube for their readers, though. How much do I love my readers? Enough to Google feverishly until I come up with gems like this:

The device looks quite simple, and I’d guess that the environmental impact of having a zillion of these underwater would be less than a bunch of turbo-prop looking things… but I wonder how they’d deal with algae and seaweed growing up around the moving parts?

Vivace -- vortex power!

Vivace -- vortex power!

Anyhoo, I like the idea, and I hope next year’s trial is successful.

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