2027 Rivian R1S Quad (22in UHP): home charging cost in Maine

At Maine's residential electricity rate of 29.67¢/kWh, a 2027 Rivian R1S Quad (22in UHP) (rated 47.3 kWh per 100 miles by the EPA) costs $14.05 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 costs a little less than gas here: 12.3% 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 Rivian R1S Quad (22in UHP) charged at home in Maine costs about $2,107/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $296 a year.

Cost of a full charge

A 2027 Rivian R1S Quad (22in UHP) needs roughly 160 kWh to reach its EPA-rated 338-mile range, which runs about $47.48 at 29.67¢/kWh in Maine.

2027 Rivian R1S Quad (22in UHP) in Maine, ranked

This combination ranks 19,824 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad (22in UHP) alone ranks 371 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.