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The HERS Index is the industry standard by which a home’s energy efficiency is measured.
When it comes to your home’s HERS rating, the lower the number the better.
A typical newly constructed American home that meets current industry standards for energy efficiency is given a HERS Index score of 100. This is the benchmark against which all other homes are measured. A lower score means a more energy efficient home, while a higher score denotes the opposite.
An Existing Resale Home will have an average score of 130.
A New Home built to current energy codes will score 100.
A new home by First America Homes scores an average of 64.