DIY Energy audits
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. The site is an interactive do-it-yourself home energy assessment tool, combined with extensive decision-support content. The site is developed and maintained by the Lawrence Berkeley National Laboratory with sponsorship from the U.S. Department of Energy (DOE) and others including Touchstone Energy Cooperatives.