Imagining a wind farm in a wide open space out West is easy, but what about in the middle of an urban area like New York City? Impossible, right? Well, not according to Majid Rashidi, a Cleveland State University mechanical engineer. He designed a new wind turbine that can attach to the sides of the water storage tanks found on many city apartment building rooftops.

Wind power is a green renewable energy alternative that could help cities lower their carbon footprints. In urban settings, turbines often can’t catch enough wind to reach high speeds. But Rashidi’s work in areas where wind would normally be too low thanks to four rotating turbines that accelerate the flow. They could produce 8 kilowatts an hour, a small amount compared to the 2000 kilowatts an hour full-sized turbines can produce, but obviously there’s no place for those behemoths in the city.

Don’t expect to see turbines on New York City roofs before late summer, but they will most likely be debuting soon in Cleveland. The Cleveland Indians baseball stadium is expected to be equipped with the turbines.

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