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EV vs gas cost in Massachusetts: $609 a year saved at 12,000 miles
With Massachusetts electricity at 30.14¢/kWh and regular gasoline at $4.20/gal, a typical EV (0.3 kWh/mile, charged 80% at home) costs about 9.9¢ per mile to run versus 15.0¢ per mile for a 28 mpg gas car. That beats gas by $609 a year at 12,000 miles. Massachusetts ranks #50 of 51 (50 states + DC) for annual savings and #49 for lowest residential electricity price.
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What the Massachusetts numbers say
- Electricity: Massachusetts residential average is 30.14¢/kWh year-to-date through July 2026, 66% above the U.S. average of 18.19¢. It is down 0.3% from the same period in 2025. Latest single month (July 2026): 30.49¢.
- Gasoline: $4.20/gal (EIA state series), up $1.29 from a year ago. The U.S. average is $4.28.
- Cost-equivalent MPG: a gas car would need about 42 mpg to cost the same per mile as this EV in Massachusetts.
- If prices move: at 20% cheaper gas ($3.36) the yearly EV saving would be $249; at 20% higher electricity (36.17¢) it would be $435.
What this leaves out: purchase price, tax credits, insurance, maintenance, depreciation, home charger installation, time-of-use rates and cold-weather range loss. Your utility's own rate may differ from the state average. See the methodology.
Cost to run common things in Massachusetts
- Space heater (1,500 W): $0.45 per hour
- Electric blanket (200 W): $0.48 per 8-hour night
- Window air conditioner (1,000 W): $0.30 per hour
- Electric clothes dryer: $0.90 per load
- Dishwasher: $0.30 per load
- Refrigerator: $136 per year
- Gaming PC (300 W under load): $0.09 per hour
- EV home charging (per 100 miles): $9.04 per 100 miles
Heating this winter? In Massachusetts a heat pump costs about $35.33 per million BTU of heat vs $25.38 for a gas furnace and $42.12 for propane. Heat pump vs furnace in Massachusetts.