Nearly one in four new homes built during 2020 was rated for energy efficiency with the Home Energy Rating System (HERS).
HERS scores are calculated by a rater certified by the Residential Energy Services Network. The rater scores the energy efficiency of a home against a 2006 standard code-compliant house, which has a set score of 100. So if a new home is scored as 70, it is 30% more energy efficient than the reference home.
Since the inception of the HERS Index in 1995, there have been more than 3.2 million HERS-rated homes, with more than 230,000 homes rated this year. 2020 saw a 24% increase in number of rated homes over 2019.
“Home builders are increasingly seeing energy efficiency as a major selling point for buying a new home,” says RESNET Executive Director Steve Baden. “It is particularly encouraging that the average HERS Index Score of homes HERS rated [in 2020] was 58. This is 42% more efficient than homes built as recently as 2006 and 72% more efficient than a typical home built in the 1970s.”
Texas is the top state with 65,081 HERS-rated homes and an average score of 58 followed by Florida with 23,750 homes and an average score of 55. To see the top ten states …