Small ( 10 kW) Homes Farms Remote Applications (e.g. water pumping, telecom sites, icemaking) Large (250 kW - 2+MW) Central Station Wind Farms Distributed Power Intermediate (10-250 kW) Village Power Hybrid Systems Distributed Power Different sizes for different amounts of energy.
Large Wind Turbines 328 base to blade Each blade 112 Span greater than 747 163.3 tons total Foundation 20 deep Rated at 1.5 megawatt Supply at least 350 homes
Impacts of Wind Power: Noise Modern turbines are relatively quiet Rule of thumb – stay about 3x hub-height away from houses
US national average for modern turbines: One-two birds per turbine, per year US national average for modern turbines: One-two birds per turbine, per year Small relative to accepted human activities E.g. If all our power was from wind bird deaths would be only 10% of number of deaths caused by cats.
www.windpower.org/en/kids/intro/how.htm A good site for starters… on your crossword.