Wind Energy Overview
An overview of Wind Power development in the Midwest Douglas J. Reinemann, Ph.D. Professor of Biological Systems Engineering University of Wisconsin – Madison Wind is one of the fastest growing Renewable energy sources in the world Annual Wind Turbine Installations Worldwide (MW) 6,000 6,000 Worldwide installed capacity (2001): 24,000 MW (~ 12.6 million homes @ 5,000 kWh/home and 30% wind capacity factor) 5,000 5,000 8,100 MW Germany 3,175 MW Spain 4,240 MW U.S. 2,417 MW Denmark 4,000 4,000 MW 45,000 MW predicted by 2005 3,000 3,000 2,000 2,000 1,000 1,000 0 0 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Source: Danish Wind Turbine Manufacturers Association & BTM Consult 1 Windmills? Early application of wind was for grinding grain (Wind-Mill) and pumping water (Windmill?) Making Electricity Wind Turbine Wind Energy Conversion System (WECS) Components of a WECS Gearbox Tower Rotor Foundation Controls Generator Illustration Source: RETScreen International www.retscreen.net 2 Where does the wind come from? Solar heating of the earth’s surface High pressure Vs. Low pressure systems Circulation Cell patterns •Hadley Cell (trade winds) •Ferrel Cell •Polar Cell Illustration source: Renewable Energy And where does it go? Power for a Sustainable Future, G. Boyle, 2004, Oxford Press Local Winds Sea Breezes Result of the seas ability to maintain temperature Daytime land heats, sea is cool Nighttime land cools faster than sea Illustration source: Renewable Energy Power for a Sustainable Future, G.
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