The Residential Energy Services Network (RESNET) has reported that over two million US homes have now been rated by its Home Energy Rating System (HERS Index Score).

Explaining the baseline of the rating system, Steve Baden, Executive Director of RESNET, said: “The HERS Index is a way to measure the energy efficiency of a home. The rating provides homeowners and even prospective buyers all the energy data to reduce energy and offers an estimate of anticipated utility costs.”

He added that the rating standard has been recognised by the US Department of Energy, the Environmental Protection Agency and the Internal Revenue Services.

Baden further added that in 2016, over 200,000 homes were rated under the HERS Index Scores, which is equivalent to a reduction of 905,000 tonnes of CO₂, and which resulted in USD 268 million in average annual energy bill savings.