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Distributed generators can be used to reduce the demand for grid electricity during peak periods, usually to avoid the higher rates ("peak demand charges") imposed on big electricity users at these times.
Some examples:
- 50-kW wind turbine shaves industrial load — Dynapower Corporation, South Burlington, Vermont.
- Navy building uses passive solar to minimize cooling loads — Building 850, Port Hueneme, California.
- Mirrored glass, high-efficiency lighting and demand-limiting program allow office building to achieve 43 kBtu/sq. ft. annually — America West Airlines Corporate Headquarters, Tempe, Arizona.
- Load-shed-transfer switches help office building respond to high demand, while energy efficiency achieves 51 kBtu/sq. ft. annually — 600 Thirteenth Street, Washington, D.C.
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