The HERS Index is the industry standard by which a home’s energy efficiency is measured. HERS stands for Home Energy Rating System and was developed by RESNET. RESNET is a recognized standards-making body for building energy efficiency rating and certification systems. RESNET stands for Residential Energy Services Network. In order for a home to be energy efficient, it must score at or lower than the reference home score (which is currently a score of 100). If the home scores higher than the reference home, it is not energy efficient.


There are many benefits to having an energy efficient home! One of the many benefits is having an efficient home that saves you money; The savings have been proven to be between 20-30%! The home also increases in value when it comes time to sell your home, putting more money in your pocket. A second benefit is that you help your environmental impact by decreasing water use, greenhouse gasses, emissions and other pollutants.  A lot of the energy we create to power our homes come from burning fossil fuels, and that creates smog, acid rain, and climate change. If we build energy efficient homes, we generate less pollution. The last benefit of having an energy efficient home is having a home that offers more comfort and better health. You will be better protected from the cold in the winter, the heat in the summer, any air drafts or moisture that seeps in, and any exterior noise. You’ll also be able to have consistent temperatures throughout the different rooms in your house. A tighter, more efficient home means that the air quality will be better and the home is more durable because of the air-sealing and water tight construction.


Since the inception of the HERS Index back in 1995, RESNET has made significant strides in building energy efficiency rating and certification systems. This week, RESNET reported that 313,153 homes received a HERS Score in 2021 which, contributing to the homes that have been rated since 1995, now total over 3 MILLION.


  • Of the 313,153 homes rated in U.S in 2021, the state of Utah rated 4,210 homes equaling 1.34% of the rated homes in the U.S.
  • Of those 4,210 homes, Utah Energy Conservation Coalition Energy Rated Homes of Utah provided quality assurance for 3,544 homes equaling 84.18% of the rated homes in Utah.
  • Of those 4,210 homes, Utah Energy Conservation Coalition Energy Rated Homes of Utah individually rated 692 homes equaling 16.44% of the rated homes in Utah.

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