Visit NPPD's website to use the Home Energy Calculator. You will enter basic information about your home and the calculator uses data from local weather, typical home construction, and energy-use histories to estimate your home's energy costs. Select the characteristics that most closely resembles your home, then click Calculate. The calculator will produce approximate monthly and annual energy costs for your home and has the option to receive the reports via email. The calculator will show you how to save the most by turning up or down your thermostat, making home improvements, as well as other options. Try the