Maine home charging cost for the 2027 Rivian R1S Quad (20in AT)

A 2027 Rivian R1S Quad (20in AT) draws 50.1 kWh per 100 miles per the EPA; at Maine's 29.67¢/kWh residential rate that's $14.87 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a little less than gas here: 7.2% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Quad (20in AT) costs roughly $2,230 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 $173 a year.

What one full charge costs

Covering the 2027 Rivian R1S Quad (20in AT)'s EPA-rated 325-mile range takes about 162.8 kWh, which costs about $48.31 at Maine's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 19,999 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad (20in AT) alone ranks 390 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.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Quad (20in AT)'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.