Microsoft Hohm Rates Home Energy Efficiency


Last week, Microsoft released the Hohm Score, a free Web application that calculates your homes energy efficiency. The estimates are based on its size and location. The software has determined that homes with the worst scores are in Texas and Tennessee, and the best are in Hawaii and Delaware.

The score is “calculated by comparing a home’s actual and potential energy efficiency,” Microsoft said in a press release. It uses home energy-efficiency models generated by the Lawrence Berkeley National Labs, which Hohm uses to create recommendations on how to cut utility bills.

Microsoft said that checking out a Hohm score will let people determine their energy use over more than 60 million houses in the U.S.