The Economic Times

In 2009, German startup SkyWind first showed its rooftop micro turbine design. 17 years later, the machine has secured certification, with Utah testing verifying roughly 615 kWh of electricity per year

SkyWind's rooftop wind turbine has secured full certification after two years of testing. This compact machine produces about 1,000 watts of peak power annually. The turbine is small enough for a rooftop and weighs less than 44 pounds. Its certified output is around 615 kilowatt hours per year.