weatherization training

Industrial and Commercial Services

Energy Efficiency Training 

What is RESNET?

RESNET provides the leading professional certification for home energy raters.

RESNET provides the leading professional certification for home energy raters and is the creator of the Home Energy Rating System (HERS).  The HERS Rater certification is highly respected nationally, and provides certified Raters with the ability to quantify the relative energy efficiency of both new and existing homes.  Raters measure a home's performance through various on site evaluations, diagnostic testing, and by inputting results into specialized software that generates a home energy rating based on the HERS Index.  In addition, RESNET has identified three levels of home energy audits that HERS Raters can offer, listed in order of ascending scrutiny: Home Energy Survey, Building Performance Audit, and Comprehensive HERS Rating.

RESNET Standards are recognized by the U.S. federal government and are used to verify eligibility for tax incentives and programs including the Environmental Protection Agency’s ENERGY STAR program and the Department of Energy’s Building America Program.  In addition, the mortgage industry utilizes RESNET’s standards to assist in the creation of energy efficient mortgages.

 What does this mean for me?

A HERS Rating delivers a vitally important service to homebuyers, lenders, and appraisers by providing a clear and robust third-party analysis of a home’s energy efficiency.  As a result, the demand for HERS Raters will continue to rise as the awareness of the value of energy efficiency increases.


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“Apple Energy Group is a subcontractor of mine that I have been working very closely with since October 2009. I can say without any hesitation that Greg and his company's work ethics are impeccable. Greg has a can do attitude and is willing to assist me in working though any issue that may arise. I enthusiastically recommend Greg Hall for any opportunity he would pursue with you.”

Jerry Lozano

Program Manager, ACS

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