Compare District of Columbia electric-vehicle ownership costs with a petrol car.
Compares District of Columbia EV vs petrol running costs from assumed efficiency (3.5 mi/kWh EV, 28 mpg petrol). It ignores maintenance, insurance and the federal/state EV credit, which shift the comparison.
Saving
Saving = petrol cost − EV electricity cost
Estimate only; check current incentives and efficiency.
No — the federal EV tax credit and state/utility rebates can substantially improve the payback; add them to the price comparison.
Rates are approximate state or national reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.