Driving Comparison Tool

Compare two vehicles by annual cost, CO2 emissions, payback period, and IRR.

For this tool you will need to choose two vehicles that you want to compare, the price for these cars and the average MPG or MPGe. Also, you will need the price you pay for electricity in $/kWh.

Vehicle Inputs
Select the type of vehicle and enter the MPG or MPGe for each vehicle.

Vehicle 1

Enter the vehicle's miles per gallon if it uses gasoline.
Enter the vehicle's miles per gallon equivalent if it is electric or plug-in hybrid.

Vehicle 2

Enter the vehicle's miles per gallon if it uses gasoline.
Enter the vehicle's miles per gallon equivalent if it is electric or plug-in hybrid.
Driving Assumptions
Enter the annual miles you estimate that you will drive the vehicle.
Enter the $/gallon price you want to use.
Enter your electricity price.
Choose the eGRID subregion for your electricity source, or use Natural Gas or Coal. Use the eGRID Subregions Map in the Carbon Footprint Calculator to find your subregion.
Enter the cost of vehicle 2 minus vehicle 1 including any state or local incentives for vehicle 2.
Enter any state driving tax for vehicle 2 minus vehicle 1.
Choose the interest or discount rate you would like to use.
EV calculations use 33.7 kWh per gallon equivalent. Plug-in Hybrid is calculated as 50% gas and 50% electric.
Adjust inputs to update the model, then export the report.
Annual $ Savings $0
Annual lbs. CO2 Savings 0
Payback Period N/A
IRR% N/A
Vehicle Comparison
Vehicle Type Annual Cost CO2/year
Vehicle 1
Vehicle 2
Additional Results
CO2 % Reduction
CO2 Reduction / Investment
Added kWh/year
Solar Panels Needed to Cover
10-Year Cash Flow
Year Cash Flow Undiscounted Balance PV of Cash Flow Discounted Balance