Modern wind turbines already provide up to 6 megawatts. Allows up to 7,000 households with electricity. The trend is toward systems on the sea, because there is wind power by up to 40% higher. Older plants are continuously replaced by newer to the energy efficiency continue to increase. In the medium term, the amount of wind turbines in Germany will decrease, while the installed capacity increased. In 2006, the wind power capacity has a 6%-percent share of the German electricity mix.
The Federal Environment Ministry is in a study like this that could be built in the next three decades, about 5,000 wind turbines in the North and Baltic Sea, then cover 15 to 20 percent of our electricity needs would. Together with the plants on land - that are not in their number, but increase in performance - the wind would make it nearly as much as today's nuclear power.
A drawback of the technology, as Greg has already noticed that, unfortunately, occasionally catch birds, especially gulls and cranes, in the rotor blades. Also, the migratory behavior of many bird species is affected, a habit for years, unfortunately, could not be detected. This was stated in a 2004 study by the conservation organization, "NABU". Greenpeace therefore demands including improved site planning and Meeting the costs of offshore projects. Incidentally, the "accidents" very rare and were usually only in the USA (as it should be otherwise ;-)).
The average rate of collisions of birds with blades amounts according to two studies per year per plant. These figures should then also in relation to the number of birds that come through power lines, pesticides, and collisions on the road to death.
noise: In comparison to road and rail traffic, construction and other sources of industrial noise is the volume of wind power plants is comparatively low. Better design and better insulation have the latest Models were still very much quieter. Regulatory authorities shall now ensure that the facilities are far enough away from housing estates to avoid excessive interference.
The bright spot electricity mix by the way wind power plays a minor role (about 4-6%), and must finally in part supported by the law, according to the Renewable Energy Law to be included.
read material to:
Greenpeace - Wind energy (including link to NABU PDF)
NABU - note side effects
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