2027 Mercedes-Benz CLA250 Plus with EQ Tech: home charging cost in Maine
At Maine's residential electricity rate of 29.67¢/kWh, a 2027 Mercedes-Benz CLA250 Plus with EQ Tech (rated 31 kWh per 100 miles by the EPA) costs $9.2 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is much cheaper than gas here: 42.6% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Mercedes-Benz CLA250 Plus with EQ Tech charged at home in Maine costs about $1,380/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,023 a year.
What one full charge costs
A 2027 Mercedes-Benz CLA250 Plus with EQ Tech needs roughly 98.3 kWh to reach its EPA-rated 317-mile range, which runs about $29.16 at 29.67¢/kWh in Maine.
How this compares nationally
This combination ranks 16,625 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Mercedes-Benz CLA250 Plus with EQ Tech alone ranks 73 of 400 models for efficiency; Maine alone ranks 48 of 51 states for electricity price.
Next step: home charger installation
The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.
Line up a few Maine electrician quotes for Level 2 install before you commit either way.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Maine has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.