What it costs to charge a 2026 Rivian R1S Tri Max (22in) in Maine

In Maine, home electricity runs 29.67¢/kWh — put a 2026 Rivian R1S Tri Max (22in)'s EPA-rated 44.6 kWh/100mi against that and 100 miles costs $13.22, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 17.4% cheaper per mile than gasoline in Maine — charging at home is cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1S Tri Max (22in) in Maine runs about $1,984 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $419 saved annually, at this mileage.

What one full charge costs

$49.06 — that's what Maine's 29.67¢/kWh rate puts on the 165.4 kWh a 2026 Rivian R1S Tri Max (22in) needs for its full 371-mile EPA range.

2026 Rivian R1S Tri Max (22in) in Maine, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Tri Max (22in) in Maine ranks 19,617 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Tri Max (22in) ranks 356 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.

Get quotes from local electricians for Level 2 charger installation in Maine before deciding.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Tri Max (22in)'s cost in Maine. 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.