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Retrofitting for energy conservation can spend a lot of money and save no energy; or spend a little money and save lots of energy. Energy Auditor has a database of weather from 211 U.S. cities and gives an accurate estimate of your specific current energy use and how much you can save by implementing the most effective projects. The program has real time results like a spreadsheet, plus detailed information on a printout. It's ideal for anybody wanting to save energy - homeowners, business owners, realtors, contractors, and engineers.

The program isolates the areas of your building that use the most energy - typically the roof. Changing the roof color alone can reduce utility bills by 25%. You can simulate adding attic insulation or ventilation; shading walls or windows; installing double paned or storm windows - and the program gives you a specific energy savings for each project, or combination of projects. All the information you need is included in the help files, including suggestions for the most cost effective projects. Utility rates are increasing by the hour - this is your chance to get ahead of the curve and actually decrease them; now, next year, and for the lifetime of your home or business.

Energy Saver 2.0 screenshot: