http://www.my.dteenergy.com/home/myEnergyAnalyzer.html
MyEnergy Analyzer, at www.my.dteenergy.com, has two parts - a bill- analyzing tool and an energy-efficiency tool. It provides customized energy- efficiency recommendations and will show you how much you can expect to save if the recommendations are followed.
they don't try to sell you anything and you be surprised how much money you can save a year
i was shocked how much i could save just shutting down my computer at night its on 24/7 now