I think have invented the worlds cheapest and simplest form of wind turbine which can produce 4.9 amps at almost 300 rpm.To my surprice i have not been able to find a buyer.

sam . - Description added by: INDIA.

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Renewable and alternative energy sources are set to play an increasingly important role in providing the electricity, heat, cooling and fuels that society needs. There is a wide range of energy sources such as solar (both photovoltaic and solar thermal), wind, bio-fuels and biomass, hydro-electric, geothermal and heat pumps. - Description added by: David Lockie