Wind energy / Wind power station

advantages
disadvantages
· environmentally friendly, renewable, modern form of energy production
· wind = inexhaustible, free energy resource
· no expensive power lines
· 35% cost cutting are possible in the next 10 years
· animals and grazing cattle are accustoming quick
· dependency of wind conditions
· visual and acoustical disturbance of the environment
· noise of the wind turbines
· impairment of birds
· problems to find the right positions for wind power stations


Amount at the international power supply

· wind energy amount at the German power supply: 6,4%
· worldwide: Germany = wind energy champion (next to: USA, Spain, India, China…)
· increase of 30% in the last years

A special kind of wind power stations: Offshore-power stations

· Pro: wind at sea = stronger and more constantly, far away from people
· 50% more energy production than the production onshore BUT: extremely expensive construction
· 30 m under the sea level grounded
· risks: raw weather, heavy storms, aggressive salted water, perhaps ice floes

Lisa and Sophia