Efficiency Maine Launches Driving Costs Calculator

Efficiency Maine has put a new tool on its website that lets homeowners compare what they spend on fuel for a gas car versus an electric vehicle (EV). The Compare Driving Costs Calculator uses default gas and home electricity prices that get updated every two weeks, so the numbers stay current without any work on your part.

You can also plug in your own gas price and electric rate if you want a more personal estimate, rather than relying on the defaults. There's a dropdown menu listing EVs that qualify for Efficiency Maine rebates, each with preset battery size and range figures already built into the calculation, so you can pick a specific model and see how it stacks up against a gasoline car.

Efficiency Maine notes the tool is meant for general comparison, not a precise prediction of your own costs. Actual gas and electricity prices vary by household, and for EV models that come in more than one battery size, the calculator uses the smallest one available, so real-world range and savings could differ. The default energy prices in the tool were last updated on July 31, 2026. If you're weighing whether an EV would save you money on fuel, this calculator offers a starting point, though your own driving habits, local prices, and vehicle choice will affect the actual outcome.