In the last decade, the use of wind turbine has grown more than 20 percent every year. Yet, this is only a small portion of the world’s energy. Nearly all wind energy is generated from turbines that can have 50 meter long blades and a height of a 20-story building. These machines look like big airplane propellers on a stick and their huge blades sometimes interfere with a number of radar systems that are used by air traffic controls or weather stations. This leads them to be mistaken for planes.
Wind turbines, how they work
The wind turbines work when wind turns the three blades at a speed of about 320 kph then a shaft that is connected to a generator also turns and begins to generate electricity. Wind is a renewable energy that emits no water or air pollution since it is not a fossil fuel. Wind energy reduces global warming. Given that wind is free, operational costs for wind turbines are almost zero the minute a turbine is raised. Today, advances in technology and mass production are making turbines in expensive, also several governments offer tax incentives as a way of popularizing wind-energy development.
A number of people have complained that wind turbines are noisy and ugly. The blades, which usually rotate at a slow pace kill bats and birds, however, this is not as much as power lines and cars do. Wind is a variable factor, and if no wind is blowing this means electricity is not produced.
The wind turbines are mostly erected in what is known as wind farms that can have tens or even hundreds turbines placed in areas that have a lot wind gushing through. It is not uncommon to find smaller turbines in homes that generate electricity for a small business or a house. Wind turbines can also be erected at a floating or offshore site with the electricity produced sent back to land using long cables under the sea.
Internationally, generation of wind energy more increase fourfold between 2001 and 2007. Last year, the global capacity generated from wind turbines was more than 70,000 megawatts. One megawatt of electricity can power almost300 homes. The country with the most wind energy capacity is Germany followed by Spain, then United States, and India. Experts in the industry forecast that by 2050, with the current growth, a third of the world’s energy needs will be found from wind energy. You can watch this video by Green Energy Solutions
Wind turbines, how they work
The wind turbines work when wind turns the three blades at a speed of about 320 kph then a shaft that is connected to a generator also turns and begins to generate electricity. Wind is a renewable energy that emits no water or air pollution since it is not a fossil fuel. Wind energy reduces global warming. Given that wind is free, operational costs for wind turbines are almost zero the minute a turbine is raised. Today, advances in technology and mass production are making turbines in expensive, also several governments offer tax incentives as a way of popularizing wind-energy development.
A number of people have complained that wind turbines are noisy and ugly. The blades, which usually rotate at a slow pace kill bats and birds, however, this is not as much as power lines and cars do. Wind is a variable factor, and if no wind is blowing this means electricity is not produced.
The wind turbines are mostly erected in what is known as wind farms that can have tens or even hundreds turbines placed in areas that have a lot wind gushing through. It is not uncommon to find smaller turbines in homes that generate electricity for a small business or a house. Wind turbines can also be erected at a floating or offshore site with the electricity produced sent back to land using long cables under the sea.
Internationally, generation of wind energy more increase fourfold between 2001 and 2007. Last year, the global capacity generated from wind turbines was more than 70,000 megawatts. One megawatt of electricity can power almost300 homes. The country with the most wind energy capacity is Germany followed by Spain, then United States, and India. Experts in the industry forecast that by 2050, with the current growth, a third of the world’s energy needs will be found from wind energy. You can watch this video by Green Energy Solutions