What it costs to charge a 2026 Rivian R1T Performance Dual Large (20in) in Massachusetts

A 2026 Rivian R1T Performance Dual Large (20in) draws 42.9 kWh per 100 miles per the EPA; at Massachusetts's 30.06¢/kWh residential rate that's $12.89 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 19.6% cheaper per mile than gasoline in Massachusetts — charging at home is cheaper than gas here.

What a year of driving costs

Home charging this 2026 Rivian R1T Performance Dual Large (20in) in Massachusetts runs about $1,933 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $470 saved annually, at this mileage.

Cost of a full charge

$38.66 — that's what Massachusetts's 30.06¢/kWh rate puts on the 128.6 kWh a 2026 Rivian R1T Performance Dual Large (20in) needs for its full 300-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T Performance Dual Large (20in) in Massachusetts ranks 19,493 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Performance Dual Large (20in) ranks 319 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.

Ask a licensed Massachusetts electrician to quote the install before this math becomes a real decision.

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.