2026 Rivian R1S All-Terrain Performance Dual Large (20in): home charging cost in Massachusetts

A 2026 Rivian R1S All-Terrain Performance Dual Large (20in) draws 44.4 kWh per 100 miles per the EPA; at Massachusetts's 30.06¢/kWh residential rate that's $13.34 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is cheaper than gas here: 16.8% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S All-Terrain Performance Dual Large (20in) charged at home in Massachusetts costs about $2,000/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $403 a year.

Cost of a full charge

A 2026 Rivian R1S All-Terrain Performance Dual Large (20in) needs roughly 128.2 kWh to reach its EPA-rated 289-mile range, which runs about $38.54 at 30.06¢/kWh in Massachusetts.

How this compares nationally

This combination ranks 19,656 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Performance Dual Large (20in) alone ranks 345 of 400 models for efficiency; Massachusetts alone ranks 49 of 51 states for electricity price.

Getting set up to charge a 2026 Rivian R1S All-Terrain Performance Dual Large (20in) at home

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.

Line up a few Massachusetts electrician quotes for Level 2 install before you commit either way.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.