Homeowners can knock 20 to 40 percent off their electricity bills with a new wind turbine that can be mounted directly on a building. The seven-foot-wide plastic turbine has a ring around its rotors that diffuses noise and limits vibration; the company claims that the turbine is no louder than a whisper. In windy locations, its power output should be about 2,000 kilowatt-hours a year.
Courtesy of Cascade Engineering
Product: Swift wind turbine
Cost: $10,000 installed and connected to the grid
Company: Cascade Engineering
Subscribe to Continue Reading
Uh oh–you've read all five of your free articles for this month.
Insider Online Only
$19.95/yr US PRICE
No One Knows How Much Oil Is Being Stored Around the World
Many countries keep their reserves a secret, meaning the price of oil is based on a huge amount of guesswork.
New Way to Boost Crop Production Doesn’t Rely on GMOs or Pesticides
Researchers are fiddling with the plant equivalent of gut bacteria.
Cheap Gas and Big Cars Are Killing Obama’s Fuel Economy Push
Americans continue to favor light-duty trucks and SUVs.