Distributed Wind Energy

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Examples

Helix Wind

“The helical-shaped turbines developed by Helix Wind founders Ian Gardner and Ken Morgan are visually stunning—they look so much like spinning sculptures that Weinbrandt says some customers are buying them for the product’s aesthetic value. So-called Savonius turbines, such as Helix Wind’s iconic design, are usually considered less efficient at generating electricity than propeller-driven turbines with a horizontal axis. But Weinbrandt says a key benefit of the helical platform is its ability to operate at high torque in lower wind speeds—and to continue operating at high wind speeds. “What we’ve done is take it to another level,” Weinbrandt says, noting Helix has 43 IP filings in the U.S. and elsewhere, with one patent pending at two trademarks received. “This technology has been refined and one of the key components is the ability to start up in light winds and still sustain high winds without shutting down. Most of our competitors have to shut down at 40 miles per hour.” The cleantech company says it competes with a variety of other vertical-axis turbine makers in the U.S., including Oregon Wind of Portland, OR, and Mariah Power of Reno, NV.” (http://www.xconomy.com/san-diego/2009/07/08/small-is-beautiful-helix-powers-weinbrandt-sees-a-small-wind-turbine-on-every-rooftop/)