What it costs to charge a 2027 Rivian R1S Premium Long Range (20in AT) in Maine

At Maine's residential electricity rate of 29.67¢/kWh, a 2027 Rivian R1S Premium Long Range (20in AT) (rated 43.2 kWh per 100 miles by the EPA) costs $12.82 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. That works out to 19.9% cheaper per mile than gasoline in Maine — charging at home is cheaper than gas here.

What a year of driving costs

Home charging this 2027 Rivian R1S Premium Long Range (20in AT) in Maine runs about $1,924 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $479 saved annually, at this mileage.

Cost of a full charge

$47.45 — that's what Maine's 29.67¢/kWh rate puts on the 159.9 kWh a 2027 Rivian R1S Premium Long Range (20in AT) needs for its full 370-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (20in AT) in Maine ranks 19,458 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (20in AT) ranks 331 of 400 EV models for raw efficiency, and Maine ranks 48 of 51 for cheapest residential electricity.

Next step: home charger installation

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few Maine electrician quotes for Level 2 install before you commit either way.

More on how this number was built

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.