Hers Index ratings | DSB Energy Services

Home Energy Ratings

Home Energy Ratings?

A home energy rating is an analysis of a home’s design plans combined with onsite inspections to calculate the performance Index of the home. This is similar to analyzing a car to determine its MPG. The HERS Index is a verification of a homes energy performance. To obtain a HERS index the home requires a detailed analysis of the architectural drawings and/or through physical examination and testing. This is a deep analysis of the home energy performance and determines the expected annual energy consumption.

Why use a HERS index?

New or existing homes can be evaluated to determine the

Home’s thermal performance

HERS Index

Annual Energy Consumption

Home’s performance comparison with other homes

For new homes, the HERS index can be prepared from building plans, and a final rating provided after the home is tested. Now home builders can use the rating information to market their products with third party quality verification.

What is the HERS Index?

A scoring system established by RESNET in which a home built to the specifications of the Standard New Home 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.