Maine home charging cost for the 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels)

In Maine, home electricity runs 29.67¢/kWh — put a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels)'s EPA-rated 28.5 kWh/100mi against that and 100 miles costs $8.46, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 47.2% less than gas per mile, here specifically.

2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels): yearly cost in Maine

At fueleconomy.gov's default of 15,000 annual miles, the 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) costs roughly $1,270 a year to charge at home in Maine, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,133 a year.

Cost of a full charge

Covering the 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels)'s EPA-rated 333-mile range takes about 95 kWh, which costs about $28.18 at Maine's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 15,729 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i4 eDrive40 Gran Coupe (18 inch wheels) alone ranks 31 of 400 models for efficiency; Maine alone ranks 48 of 51 states for electricity price.

Getting set up to charge a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) at home

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.