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RESNET HERS Home Energy Rating System
What is The Residential Energy Services Network (RESNET)? RESNET is a nonprofit organization that sets national standards for home energy ratings and energy-efficient mortgages. Since 1995, they've worked to develop a reliable national market for measuring and improving home energy performance. Their HERS Index (Home Energy Rating System) allows for easy comparison of the energy performance of homes, like looking at the MPG of a car!
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15th Jul 2025