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RESNET HERS Index Score Card

The RESNET HERS Index is the industry standard by which a home's energy efficiency is measured. The HERS or Home Energy Rating System was developed by RESNET and is the nationally recognized system for inspecting and calculating a home's energy performance. Certified RESNET Home Energy Raters conduct inspections to verify a home's energy performance and determine what improvements can be made to increase it.

HERS Index Score of 150

This house is a WHOPPING 50% LESS ENERGY EFFICIENT than a standard new home! It could be a significant financial drain on the bank account and to the environment in general. A house like this has high energy bills and will be hot in the summer and cold in the winter. This homeowner should immediately talk to a RESNET certified Home Energy Rater who can advise them on what they can do to:

HERS Index Score of 140


HERS Index Score of 130


HERS Index Score of 120

  • This home is 20% less energy efficient than a standard new home. Watch out for the noticeably draftier rooms, the fact that utility bills are higher than a newly constructed home and that the house is either too hot in summer or too cold in winter. While this home isn't quite the inefficient energy monster, it would be a good idea to get in touch with a certified RESNET Rater to discover what options are available on improving its energy performance.
  • Find a RESNET Certified Rater now.

HERS Index Score of 110

  • You’re pretty close to bringing your home in line with the current industry standard for energy conservation. However, there’s still a lot of room for improvement, and that can translate directly into an improved quality of life and savings on your home energy bills. This is a good time to look into getting an Energy Improvement Mortgage that can help you to make the necessary improvements to your home.
  • Go here to learn more about Energy Improvement Mortgages and how they work.

HERS Index Score of 100


HERS Index Score of 90

  • This home is 40% more energy efficient than an average resale home and 10% more energy efficient than a standard new home, which is awarded a score of 100 and used as the base against which all other homes are measured. The lower a home ranks on the HERS Index, the better it is both financially and environmentally. Also, a low HERS Index score could help increase a home’s resale value as well! RESNET certified Raters can show you how to improve your house's ranking on the HERS Index, increase your quality of life and add value to your home.
  • Talk to a RESNET Certified Rater today to learn more!

HERS Index Score of 80

  • You might think this house is doing okay when it comes to home energy efficiency - but the fact is it could do a lot better. Although this house might be performing 20% more efficiently than a standard new home, homes can be built much more energy efficiently. Money invested into a more energy efficient home will help increase its value while improving its comfort level.
  • Take advantage of Energy Efficient Mortgages.

HERS Index Score of 70

  • This is an admirable score. Although this home is 30% more energy efficient than homes built according to current building code requirements, it is still possible to lower the HERS Index score. A RESNET certified Rater can advise homeowners on what home energy performance features they can add that will add value to their home and improve its comfort level.
  • Contact a RESNET Certified Rater today!

HERS Index Score of 60


HERS Index Score of 50

  • This home is 50% more energy efficient than a standard new home and 80% more efficient that the average resale home, which already puts it in a better bracket than a standard new home. However, there are still many improvements that can be made. A RESNET certified Rater is the ideal person to talk to about what more can be done.
  • Go Green with an Energy Efficient Mortgage.

HERS Index Score of 40


HERS Index Score of 30


HERS Index Score of 20


HERS Index Score of 10

  • This is a truly outstanding score! Tremendous effort has gone into making this home very energy efficient. These homeowners will enjoy watching their utility bills decrease while the comfort level of their home increases. The next step would be to eliminate energy costs altogether by having the house produce its own energy. Impossible? Not true! A RESNET certified Rater can show you how you to convert your home into a Zero Energy Home that actually produces as much energy as it consumes.
  • Talk to a RESNET Certified Rater today and find out how!

HERS Index Score of 0

This home is a Net Zero Energy Home. This means that this home produces as much energy through renewable resources, such as solar panels, as it consumes. Only a Net Zero Energy Home can score 0 on the RESNET HERS Index. Among the advantages of a Zero Energy Home are:

    • Improved health and comfort: a Net Zero Energy Home reduces temperature fluctuations.
    • Cost effective: a Net Zero Energy Home that produces energy not only shields its owner from fluctuations in energy prices but can eliminate energy bills altogether.
    • Environmental sustainability: a Net Zero Energy Home protects the environment by reducing greenhouse gases, cutting carbon emissions and saving energy.
    • Contact a RESNET Certified Rater to learn how you can transform your house into a Zero Energy Home.

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