The demand for HERS Index ratings is continuing to grow. Between January 1 and August 31, 2017, 145,467 homes were uploaded to the RESNET National Registry. During this time in 2016, there were 132,225 homes uploaded into the registry. This is 13,242 more homes over the same time period of our record breaking 2016. For a two minute explanation of the HERS Index CLICK HERE.