Word: solarity
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Doug Morrell had already installed solar panels on his house in Coopersville, Mich., but he was eager to get a little bit greener. So the 52-year-old Navy veteran bought something that might seem more at home in the Dutch countryside than in a small town in western Michigan: a personal wind turbine. The 33-ft.-high (10 m) machine, whose blades span 7 ft. (2 m) in diameter, sits next to the pole barn 100 yd. (90 m) from Morrell's home. (Turbines like Morrell's convert the energy of the wind to electricity, while old windmills...
...adding more in new capacity to the electrical grid last year than any other power source - most of that increase comes from utility wind farms, vast fields of turbines more than 300 ft. (90 m) tall. For homeowners seeking renewable-energy sources, however, better-known solar power has always dominated. Home solar power currently generates 12 times as much energy as small wind power, which is defined as turbines that have a capacity of 100 kW or less (though most household turbines will produce 10 kW at most). That's partly because residential wind turbines require space...
What's really held back residential wind power has been the lack of federal subsidies, which have fed the growth of other renewables like solar and large-scale wind. "We've had zero federal assistance," says Ron Stimmel, AWEA's small-wind expert...
...other words, small wind may not be small potatoes for much longer. And that could be a boost for domestic green businesses as well: U.S. firms control 98% of the small-wind market, in contrast to large-scale wind and solar, in which foreign manufacturers dominate. "Since the tax credit, our phone has been ringing off the hook," says Andy Kruse, a co-founder of Southwest Windpower, a major small-scale-turbine producer in Flagstaff, Ariz. "It's really exciting to see the market coming...
...watt for watt, small wind is cheaper than residential solar, and for those willing to make the up-front investment, it can provide freedom from the electrical grid. Plus, in the eyes of some, there's nothing more beautiful than a wind turbine spinning in the backyard. "It looks like a giant pinwheel and sounds like a plane off in the distance," says Morrell. "I'd definitely recommend...