The amount of money a home owner spends on utility costs to operate their house can have a significant impact on their monthly budgets. Having a Home Energy Rating done on the home can help home owners figure out how efficient their homes are, and prepare for higher or lower costs than expected. There are 2 different types of processes to help home owners understand the efficiency of their energy usage in their homes.
The Home Energy Rating System (HERS) developed by the Residential Energy Services Network (RESNET) tallies a score based on an index where the lower the number, the more efficient the house. Using blower door testing and duct leakage tests, a HERS Rater compares the home being tested, to a reference home (a model home that is the same type, size, and shape) to base the score.
The HERS scale ranges from 0-100 with the average HERS score for a new home being 40. A home ranking 0 is considered a Net-Zero home, meaning it produces as much energy as it uses. A home compliant with the 2006 International Energy Conservation Code (IECC) would have a score of 100. To compare, the average home with a score of 40 is 60% more efficient than the 2006 IECC-compliant home.
The Home Energy Score (HES) was developed by the Department of Energy (DOE) and is another way to estimate a home’s energy usage. While the HERS scale is usually used for new homes, the HES scale is used for existing homes. The HES scale ranges from 1-10, with a higher score indicating a more energy efficient home. However, the HES estimates a home’s total energy use, not usage per square foot so larger homes tend to score lower. Using an assessor gathering around 50 data points like insulation grade, window type, and information on the heating/cooling system, the HES score is a gauge on how much energy the home might use.
The HES can be a great way to get an idea of a home-energy usage, which can help as a home owner prepares for a mortgage. Because it indicates how energy efficient a home is, the lender could be more inclined to allow for a larger mortgage, knowing the owner is expected to have lower utility costs.
Although the HES is a low-cost and reliable way to get an idea of a home’s energy usage, it cannot be used to comply with the IECC. The Energy Rating Index (ERI) is used as a performance path to comply with the IECC. The HERS Index can be used for this performance path, so while more expensive than HES, it can be advantageous to builders in order to comply with the IECC.
Information Curated from nahbnow.com
Latest News & Upcoming Events
Fourteen researchers from the University of Utah, BYU and the University of Idaho published a comprehensive renewable energy report showing that the Beehive State has the potential to be a world leader in renewable energy production, storage, and manufacturing. It...
Thanks to the new 2024 Federal and State Housing Credit Program Allocation Plan approved by the Utah Housing Corporation board, affordable housing developments in Utah are improving their energy efficiency and electric vehicle charging. EV charging access will be...
IRS Releases Section 25C Tax Credit Qualification Requirements for Home Energy Audits On August 4, 2023, the U.S. Internal Review Service (IRS) announced Notice 2023-59. This notice presents stipulations for U.S. taxpayers to collect the “Energy Efficient Home...
An "orange alert" has been issued by the city of St. George to protect its power grid from extreme temperatures and high loads. People are encouraged to refrain from using major household appliances such as ovens, dishwashers, clothes washers, and dryers...
Trends in HERS Rated Homes Each year, RESNET® examines the trends among homes that have received a HERS® rating. A statistical abstract of homes rated for HERS® by RESNET® in 2022 was released in the document entitled, “Trends in HERS Rated Homes – A Statistical...
Utah Energy Conservation Coalition Energy Rated Homes of Utah Earns 2023 Energy Star Market Leader Award
Utah Energy Conservation Coalition / Energy Rated Homes of Utah Earns 2023 ENERGY STAR® Market Leader Award UECC/ERHU is proud to announce that it has earned a 2023 ENERGY STAR® Market Leader Award from the U.S. Environmental Protection Agency (EPA) in...
On August 10, 2022, Utah’s Uniform Building Code Commission held a public hearing, in which more than 60 people gathered online and in person for, to go over the proposed amendments and updates to 2021 building codes. The amendments and updates were made in...
Greenbuild 2019 will take place in Atlanta, Georgia. Greenbuild offers a forum for the green building community to unite, change lives, revolutionize business and address pressing issues. Attend Greenbuild to hear from leaders on their vision about the future of green building, learn about current research and best practices, connect with sustainability experts, and see innovative technologies and products to take your projects to the next level. More Details
The RESNET Building Performance Conference provides a diverse and dynamic venue where you can obtain usable solutions in an evolving industry. Get up to date on strategic solutions for you and your business, network with like-minded professionals, and take home fresh information and for the home performance industry. More Details