The two most common forms of solar energy are photovoltaic panels, which are semiconductors that directly generate electricity, and solar thermal plants, which use the sun to create steam to turn a turbine. The heating of the earth is uneven due to the daily rotations of our planet and creates winds whose energy can be captured by turbines and converted into electricity. This is the cheapest, and fastest growing, renewable energy technology. Solar energy that is stored in green plants and other organic matter is referred to as biomass. Geothermal power plants, which like biomass facilities resemble conventional power plants, utilize steam that lies below the surface of the earth in certain locations to generate electricity.
Geothermal plants emit little air pollution and can have minimal impacts on the environment.
The kinetic energy of flowing water is the oldest and most readily available form of renewable energy. Large hydroelectric plants, however, can also carry a big environmental price tag, such as loss of endangered fish species. One of the main purposes of the Green-e Program is to ensure that you are getting what you pay for. Green-e Program agreeing to submit to an annual audit and abide by our Code of Conduct. In addition, the company must tell you, in writing, the price of power, the fuel source used to generate power, terms and conditions of service and the amount of any additional charges.