Brought to you by the U.S. Department of Energy and Energy Star, the Home Energy Saver is designed to help consumers identify the best ways to save energy in their homes, and find the resources to make the savings happen.

To give you home an energy audit, just enter your zip code and fill out the short questionnarie and it comes up with suggestions as to what you can do to cut down on your energy costs. You can see estimates on how much energy and money can be saved and how much emissions can be reduced by implementing energy-efficiency improvements. All end uses (heating, cooling, major appliances, lighting, and so on) are included.

The results pages also provide a list of recommendations—ranked by payback time—tailored to the particular home being evaluated. You can then vary the energy efficiency assumptions in many cases, as well as the retrofit costs and then recalculate the table, if you so desire.

Via Lifehacker.