Disclaimer: This calculator will provide you with estimates of energy-use costs based on your inputs. Estimates are based on a number of factors, including, but not limited to your geographic location, predicted weather, and usage trends. The Annual and Monthly results are estimates only and should not be relied upon as your actual usage; other variables will dictate the amount on your actual energy bill. Rather, this site is intended to provide you with a comparison platform that reflects the differences between the energy your home currently uses ("Base House") and various "Scenario" alternatives. Please remember, this tool is not meant to replicate your bills or take the place of your actual bills. Historical monthly average rates are used in the calculations for electric, gas, heating oil and propane. Actual results may vary, and the estimate provided may be substantially different from actual usage and actual bill amounts.