Denmark has announced aggressive and inspirational goals regarding its energy consumption and generation. Will it have a positive ripple effect? More
Since 2002, the number of small residential wind turbines has increased more than 10 times, and there's still plenty of opportunity. More
Windspire. Mounted on a 30-foot monopole of recycled high-grade steel, Windspire’s standard turbine produces 2,000 kWh per year in 24-mph winds. The vertical-axis turbine requires a minimum wind speed of 8.5 mph to operate and is designed to work quietly. 775.852.0200. www.windspireenergy.com. More
A roundup of green building news including the 10 most innovative energy companies in the U.S. and the predicted rise of wind turbine installations. More
Cascade Engineering. The rooftop-mountable Swift turbine is designed for urban and suburban homes, starting up in 8-mph winds. It can produce 1,900 kWh per year at a 13.4-mph average wind speed, says the firm, and is never louder than 35 decibels, equivalent to a whisper. The turbine measures 7 feet in diameter. 866.544.5520. www.swiftwindturbine.com. More
Tax credits and utility incentives push residential wind turbines closer to the mainstream. More
Tax credits and utility incentives push residential wind turbines closer to the mainstream. More
Delta Electronics. The 400-watt HAWT turbine generates 50 kWh per month in 13.4-mph wind conditions. The rotor, which starts up in 8-mph winds, measures 49.6 inches in diameter. It includes electronic overspeed protection. The firm also makes a 1.0-kW model. 888.979.9889. www.delta-corp.com/windenergy. More
A roundup of green building news including a bladeless wind turbine and Europe’s First Ecovillage. More
Chicago's Greenway Self Park, designed by HOK, includes a dozen vertical-axis wind turbines to help power the structure. More
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