Using the wind to turn a windmill blade to generate electricity. The blades collect the wind's energy as it goes over the blades because they slow down the speed of the wind; the blades are spun and the wind is slowed. The blades are connected to a drive shaft which is turning an electric generator to produce electricity. [Energy Economics; v1; 1; 2007.] [Renewable Energy; v32; 2242-2246; 2007.]