The Home Energy Saver™ (HES) empowers homeowners and renters to save money, live better, and help the earth by reducing energy use in their homes. HES recommends energy-saving upgrades that are appropriate to the home and make sense for the home's climate and local energy prices. The money invested in these upgrades commonly earns "interest" in the form of energy bill savings, at an annual rate of 20% or more. Depending on the type of improvement made, the home can achieve better comfort (warmer in winter, cooler in summer), fewer drafts, lower maintenance costs, and improved security and fire safety—all of which improve life and increase the home's value.
HES computes a home's energy use on-line in a matter of seconds based on models and data developed at the U.S. Department of Energy's Lawrence Berkeley National Laboratory. Home Energy Saver™ (HES) was the first Internet-based tool for calculating energy use in residential buildings in operation for over 20 years.