Nordtank Wind Turbine 65 KW located at Laker Elementary.
As Brion Dickens said, the Swift wind turbine works much better if it is not mounted on a roof (there is too much turbulence on a roof which causes wear and tear on the bearings).
As Brion also said, the Windspire has to have very specific conditions to work. He also said that the vertical blades are fighting each other on every revolution-- one side is turning into the wind while the other side is catching it.
Bergey Wind Turbine 10 KW located at Laker School Superintendent's house (also at Vantage Point in Port Huron).
Photo above: Nordtank 65 KW Wind Turbines at Laker Elementary.
Photo above: Windspire wind turbine.
Photo above: Skystream 3.7 (same model at SC4) 2.3 KW
Photo above: Bergey 1 KW without blades.
Photo above: Solar hot water on the ground and solar photovoltaics (PV) on the rack.
