2027 Rivian R1S Performance (20in AT)

Charging a 2027 Rivian R1S Performance (20in AT) at home in Massachusetts

At Massachusetts's residential electricity rate of 30.06¢/kWh, a 2027 Rivian R1S Performance (20in AT) (rated 49.8 kWh per 100 miles by the EPA) costs $14.98 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 6.5% cheaper per mile than gasoline in Massachusetts — charging at home costs a little less than gas here.

Annual cost, at 15 thousands miles a year

Massachusetts owners putting 15,000 annual miles on a 2027 Rivian R1S Performance (20in AT) spend about $2,247 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $156 saved annually, at this mileage.

What one full charge costs

At Massachusetts's rate, fully covering this 2027 Rivian R1S Performance (20in AT)'s 329-mile EPA range costs about $49.29 (164 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (20in AT) in Massachusetts ranks 20,016 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (20in AT) ranks 386 of 400 EV models for raw efficiency, and Massachusetts ranks 49 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1S Performance (20in AT) at home

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 Massachusetts before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. 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.