There is also the HERS Index, which is probably the most popular: https://www.resnet.us/hers-index https://www.resnet.us/hers-index. 22% of homes received HERS

There is also the HERS Index, which is probably the most popular: https://www.resnet.us/hers-index https://www.resnet.us/hers-index. 22% of homes received HERS Index Scores in 2016. It is a simple score that indicates the efficiency of a home. A score of 0 represents Net-Zero, and score of 100 represents a "typical home". If you're buying a home (and you care), you should ask if it has been HERS Rated and to see the HERS Certificate. Source for 22%: http://www.resnet.us/blog/national-renewable-energy-laboratory-research-finds-the-22-of-new-home-completed-in-the-u-s-in-2016-were-hers-rated/ http://www.resnet.us/blog/national-renewable-energy-laborato...