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The HERS Index is a scoring system established by the Residential Energy Services Network (RESNET) in which a home built to the specifications of the HERS Reference Home (based on the 2006 International Energy Conservation Code) scores a HERS Index of 100, while a net zero energy home scores a HERS Index of 0. The lower a home’s HERS Index, the more energy efficient it is in comparison to the HERS Reference Home.
Each 1-point decrease in the HERS Index corresponds to a 1% reduction in energy consumption compared to the HERS Reference Home. Thus a home with a HERS Index of 85 is 15% more energy efficient than the HERS Reference Home and a home with a HERS Index of 80 is 20% more energy efficient.
A Home Energy Rating performed by Home Energy Solutions of the Triad involves an analysis of a new home’s construction plans and onsite inspections. Based on the home’s plans, the Home Energy Rater uses an energy efficiency software package to perform an energy analysis of the home’s design. This analysis yields a projected, pre-construction HERS Index.
Upon completion of the plan review, the HERS rater will work with the builder to identify the energy efficiency improvements needed to ensure the house will meet ENERGY STAR performance guidelines. The Rater then conducts on-site inspections, typically including a blower door test (to test the leakiness of the house) and a duct test (to test the leakiness of the ducts). Results of these tests, along with inputs derived from the plan review, are used to generate the homes efficiency rating on the HERS Index.
Unlike a Building Performance Audit or a weatherization assessment, a home energy rating is a recognized tool in the mortgage industry and for government incentives for energy efficiency. The HERS Index quantifies the energy performance of a home based on a set of standards, and therefore provides an easy way to compare the energy efficiency of different homes.
An individual who is certified by an accredited HERS Provider to inspect and test a home in order to evaluate each of the minimum rated features established by RESNET and prepare a comprehensive HERS rating according to Chapters One and Three of the RESNET Mortgage Industry National Home Energy Rating.
I just want to say, WOW!!!! What a difference your work has done to our home and the power bill. We were not expecting to see that change so soon. Read more... Kerry and Heather McArthur
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Email:info@callhomenc.com
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