There was only around ** homes with an Energy Star certification in the United States in 2008, however this figure increased significantly reaching over two million certified residential units as of the second quarter of 2019.
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ACEEE, & Alliance to Save Energy, & BCSE. (December 17, 2019). Cumulative number of Energy Star certified homes in the United States from 2008 to 2019 (in 1,000s)* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 30, 2026, from /statistics/1087131/number-homes-energy-star-certification-us/
ACEEE, und Alliance to Save Energy, und BCSE. "Cumulative number of Energy Star certified homes in the United States from 2008 to 2019 (in 1,000s)*." Chart. December 17, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 30, 2026. /statistics/1087131/number-homes-energy-star-certification-us/
ACEEE, Alliance to Save Energy, BCSE. (2019). Cumulative number of Energy Star certified homes in the United States from 2008 to 2019 (in 1,000s)*. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 30, 2026. /statistics/1087131/number-homes-energy-star-certification-us/
ACEEE, and Alliance to Save Energy, and BCSE. "Cumulative Number of Energy Star Certified Homes in The United States from 2008 to 2019 (in 1,000s)*." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Dec 2019, /statistics/1087131/number-homes-energy-star-certification-us/
ACEEE & Alliance to Save Energy & BCSE, Cumulative number of Energy Star certified homes in the United States from 2008 to 2019 (in 1,000s)* ÌÇÐÄÆƽâ°æ, /statistics/1087131/number-homes-energy-star-certification-us/ (last visited July 30, 2026)
Cumulative number of Energy Star certified homes in the United States from 2008 to 2019 (in 1,000s)* [Graph], ACEEE, & Alliance to Save Energy, & BCSE, December 17, 2019. [Online]. Available: /statistics/1087131/number-homes-energy-star-certification-us/
