HERS stands for Home Energy Rating System. The HERS Rating process is governed by an organization called RESNET who oversees standards, training, quality assurance, and a formal complaint resolution process.
The HERS Rating is a building block in many other rating programs including Energy Star, NGBS, even building code. HERS Ratings take into account energy use from all parts of the house including lighting, appliances, framing, insulation, air sealing, water heating, and HVAC. When completing a HERS Rating, Performance Point can even accurately estimate annual utility usage for a house!
The HERS Rating is basically a measurement that tells you how energy efficient your home is compared to a standard code built home. The lower the score, the more energy efficient your home is!
- A home with a HERS Index Score of 70 is 30% more energy efficient than the RESNET Reference Home.
- A home with a HERS Index Score of 130 is 30% less energy efficient than the RESNET Reference Home.