Wind possesses kinetic energy which is called wind energy. The sun indirectly provides wind energy and so this is a renewable energy source. Wind energy will be available for as long as the sun shines.

Wind energy is also a clean and green renewable energy source. It neither causes pollution nor does it emit harmful substances that might be hazardous for the health. As a green renewable energy source, wind energy also does not contribute to global warming in any way and prevents the degradation of the environment.

Wind energy companies use wind energy by harnessing it by using wind turbines to produce electricity. This electricity can be used for both domestic and commercial purposes. The development of technology has resulted in wind energy being used as an alternative energy source for the generation of electricity.

Renewable wind energy can produce enough electricity that can meet the power and energy demands of a whole nation. Technologies must be developed that can further promote the use of wind energy as an alternative energy source.

A wind turbine has two or three propeller like blades which are called rotors. These blades or rotors are attached to the top of a very tall tower. When the wind blows, the rotors spin and power a generator. The generator has a large number of copper connectors and magnets that produce electricity. This electricity can be used as an alternative power source to meet the power needs of urban and rural areas.

Rotors are installed at a height so that they can capture the maximum renewable wind energy whose intensity is more at high altitudes. This also ensures maximum power generation. The electricity generated by a wind turbine can be used as an alternative power source to meet the power requirements of a single household or a small community and can also be used to power mills for grinding grains and to pump water. However, the electricity produced by a wind turbine is not enough for commercial purposes. Therefore, wind farms need to be installed with a large number of wind turbines. Together, this large number of wind turbines generate enormous amount of electricity that is supplied to electricity provider companies that provide electricity for commercial use.

The Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) grant programs, international programs, infrastructure development activities, and other supporting activities have received considerable funding increases under a new appropriations act and budget settlement. The Weatherization Assistance Program received $200 million, while the State Energy Program received $50 million, adding to the $8 billion directed through these programs by the economic stimulus act. For facilities and infrastructure, the act provides $76 million, most of which will go to the Department of Energy’s National Renewable Energy Laboratory, including $41 million to complete construction of the Energy Systems Integration Facility. Combining that economic stimulus funding with the regular 2009 budget generates a total budget of $18.73 billion for EERE, 11 times more than the funding from 2008.