Huge wind turbines are now fully competitive with fossil fuel plants. Worldwide, wind farms are currently producing nine times more electricity than solar powered systems, and there are dozens of countries building hundreds of wind farms every year.
The most important green source of power generation
The wind industry – largely based on big wind farms - continues to face obstacles and resistance, especially coming from real estate interests and local communities (who dislike the proximity of wind turbines).
Though wind farms can be sited in many shallow coastlines, in mountain ridges, or in plains and hills, one of the major problems is the limited availability of windy places close enough to grid power lines and far enough from local communities.
Environmental impact on animal life and noise
The impact of wind power systems on animal life is minimal and the concerns about noise are basically unfounded. Wind turbines do not use fossil energy and do not produce CO2 or any other gas emission. And there isn't any toxic or hazardous materials related to their functioning. The insignificant amounts of hydraulic, insulating and lubricating fluids and oils used by them aren't likely to cause any significant contamination. Wind energy is a clean type of energy.
The rotors of large wind turbine systems are huge but slow; they do not pose any significant problem to birds or bats, contrary to popular misconceptions.
And the same is true for noise. Contrary to what some people continue to believe, even the bigger wind turbines are inaudible some hundred feet away.
Environmental concerns over wind powered systems are largely displaced.
It’s true that wind turbines involve – at their manufacturing plants - some degree of waste and toxicity. There isn't such a thing as an immaculate green source of energy. But the cons of wind energy systems are trivial, compared to the environmental impact of fossil fueled power plants.
Once installed, modern wind power systems are very eco-friendly…
Small wind turbines
As to small wind electric systems, their importance in many rural areas of the US is a good example of their potential, in areas with favorable wind speeds, especially in areas where the installation of power lines is expensive.
It is often estimated that about 1,5 billion people haven’t electricity, worldwide. And small wind and solar PV systems are the easiest, cheapest and most environmentally-friendly options to provide it.