Optiwind prototype

Optiwind is a two-year start-up that's designing a mid-size wind turbine for businesses or municipal buildings like schools.

This is a drawing of the system it hopes to test later this year. The structure, which would be just under 200-feet tall, is meant to accelerate wind as it hits the silo surface to make the fans spin faster and generate more electricity. It's developing a 150-kilowatt and a 300-kilowatt model.

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