The materials from which a building is constructed, as well as the systems and appliances installed there, can dramatically affect the amount of energy that the building will consume over its lifetime. Efficiency ratings for many building components and energy systems have been devised to help customers compare the potential impact of one to another.

For more information about efficiency ratings, about energy efficiency in general, or about the efficiency programs and services offered by the CWLP Energy Services Office, select any of the topics or subtopics listed in the left-hand column of this page.

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Last update: 02/15/10