Dave Roberts of the National Renewable Energy Research Laboratory (NREL) has been researching the penetration of the HERS® Index in the U.S. housing market. His research discovered that in 2016, 22% of all completed new homes in the U.S. were HERS® rated. NREL’s research also broke down the percentage of completed new homes in 2016 that were HERS® rated by state. The top states in terms of percentage of new completed homes that were HERS® rated in 2016 are: Massachusetts – 61% Indiana – 57% Iowa – 53% Alaska – 48% Arizona – 41% Minnesota – 39% Colorado – 38% Delaware – 37% Oklahoma – 37% Rhode Island – 35% Ohio – 34% Nevada – 33% Pennsylvania – 32% Below is the chart that breaks down by state the percentage of new homes that were HERS® rated in 2016: Source: Dave Roberts, NREL The sources for the NREL analysis were data of homes HERS® rated in 2016 by state from RESNET’s National Building Registry and the number of completed homes by state from the U.S. Census Bureau. NREL also reported on the breakdown by state of the average HERS® Index score of homes HERS® rated in 2016. The states with the lowest average HERS® Index scores of HERS® rated homes in 2016 are: Maine – 26 Hawaii – 45 Montana – 46 Minnesota – 51 Wisconsin – 52 Nebraska – 52 New York – 53 Connecticut- 53 Delaware – 53 South Dakota – 53 Colorado – 55 Massachusetts – 55 Source: Dave Roberts, NREL NREL also reported on the breakdown by state of the number of homes HERS® rated in 2016. The top states with HERS® rated homes in 2016 are: Texas – 40,012 North Carolina – 13,397 Arizona – 12,522 Florida – 12,484 Colorado – 12,320 Source: Dave Roberts, NREL
