What it costs to charge a 2026 Rivian R1S All-Terrain Tri Max (20in) in New Mexico

At New Mexico's residential electricity rate of 14.82¢/kWh, a 2026 Rivian R1S All-Terrain Tri Max (20in) (rated 49.8 kWh per 100 miles by the EPA) costs $7.39 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 53.9% cheaper per mile than gasoline in New Mexico — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2026 Rivian R1S All-Terrain Tri Max (20in) in New Mexico runs about $1,108 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,295 saved annually, at this mileage.

Cost of a full charge

$24.3 — that's what New Mexico's 14.82¢/kWh rate puts on the 164 kWh a 2026 Rivian R1S All-Terrain Tri Max (20in) needs for its full 329-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Tri Max (20in) in New Mexico ranks 13,980 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Tri Max (20in) ranks 388 of 400 EV models for raw efficiency, and New Mexico ranks 17 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S All-Terrain Tri Max (20in) 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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. New Mexico's 14.82¢/kWh rate ranks 17 of 51 states; the state rate guide lays out the full spread.