Charging a 2026 Rivian R1S Dual Standard (22in) at home in Massachusetts

In Massachusetts, home electricity runs 30.06¢/kWh — put a 2026 Rivian R1S Dual Standard (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $11.99, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 25.2% cheaper per mile than gasoline in Massachusetts — charging at home is cheaper than gas here.

What a year of driving costs

Massachusetts owners putting 15,000 annual miles on a 2026 Rivian R1S Dual Standard (22in) spend about $1,798 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $605 saved annually, at this mileage.

Cost of a full charge

At Massachusetts's rate, fully covering this 2026 Rivian R1S Dual Standard (22in)'s 270-mile EPA range costs about $32.37 (107.7 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 2026 Rivian R1S Dual Standard (22in) in Massachusetts ranks 19,018 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Standard (22in) ranks 262 of 400 EV models for raw efficiency, and Massachusetts ranks 49 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Dual Standard (22in) 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.