What it costs to charge a 2027 Rivian R1S Premium Long Range (20in AT) in Massachusetts
A 2027 Rivian R1S Premium Long Range (20in AT) draws 43.2 kWh per 100 miles per the EPA; at Massachusetts's 30.06¢/kWh residential rate that's $12.99 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 18.9% cheaper per mile than gasoline in Massachusetts — charging at home is cheaper than gas here.
2027 Rivian R1S Premium Long Range (20in AT): yearly cost in Massachusetts
Home charging this 2027 Rivian R1S Premium Long Range (20in AT) in Massachusetts runs about $1,949 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $454 saved annually, at this mileage.
What one full charge costs
$48.08 — that's what Massachusetts's 30.06¢/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.
How this compares nationally
Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (20in AT) in Massachusetts ranks 19,539 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 Massachusetts ranks 49 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 Massachusetts electrician quotes for Level 2 install before you commit either way.
More on how this number was built
See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Premium Long Range (20in AT)'s cost in Massachusetts. Massachusetts 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.