We use our own APIs to run the Home Energy Saver Consumer Tool.
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. HESrecommends 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 (see examples). HES also estimates the home's carbon footprint and shows how much it can be reduced.
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. All end uses (heating, cooling, water heating, major appliances, small appliances, and lighting) are included. HES generates a list of energy-saving upgrade recommendations for the user's consideration. HES is not a "black box"—we extensively document all methodologies and assumptions.
Founded in the early 1990s, the Home Energy Saver is the original web-based calculator for home energy analysis.
HES is designed by Lawrence Berkeley National Laboratory and supported by the DOE, Office of Energy Efficiency and Renewable Energy.