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Energy efficiency

Energy efficiency may refer to:

See also

"green air" © 2007 - Ingo Malchow, Webdesign Neustrelitz
This article based upon the http://en.wikipedia.org/wiki/Energy-efficiency, the free encyclopaedia Wikipedia and is licensed under the GNU Free Documentation License.
Further informations available on the list of authors and history: http://en.wikipedia.org/w/index.php?title=Energy-efficiency&action=history
presented by: Ingo Malchow, Mirower Bogen 22, 17235 Neustrelitz, Germany