You have the option to purchase renewable electricity, either directly from your power supplier, from an independent clean power generator, or thro. .
Some power companies provide an optional service, called green pricing, that allows customers to pay a small premium in exchange for electricity generated from clean, renewable. .
In some parts of the country, you can choose not only how your electricity is generated, but also who generates it. Just as the long-distance telephone industry was restructured,. .
Buying green certificates allows you to contribute to the generation of clean, renewable power even if you can't buy clean power from.
[pdf] Flywheel energy storage (FES) works by accelerating a rotor () to a very high speed and maintaining the energy in the system as . When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of ; adding energy to the system correspondingly results in an increase in the speed of th.
[pdf] 
