Charging a 2026 Rivian R1S All-Terrain Dual Large (20in) at home in Oregon

A 2026 Rivian R1S All-Terrain Dual Large (20in) draws 44.4 kWh per 100 miles per the EPA; at Oregon's 15.31¢/kWh residential rate that's $6.79 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 57.6% cheaper per mile than gasoline in Oregon — charging at home is much cheaper than gas here.

What a year of driving costs

Oregon owners putting 15,000 annual miles on a 2026 Rivian R1S All-Terrain Dual Large (20in) spend about $1,019 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,384 saved annually, at this mileage.

Cost of a full charge

At Oregon's rate, fully covering this 2026 Rivian R1S All-Terrain Dual Large (20in)'s 289-mile EPA range costs about $19.63 (128.2 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Large (20in) in Oregon ranks 12,439 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Large (20in) ranks 344 of 400 EV models for raw efficiency, and Oregon ranks 21 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.

Get quotes from local electricians for Level 2 charger installation in Oregon before deciding.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Large (20in)'s cost in Oregon. Oregon's 15.31¢/kWh rate ranks 21 of 51 states; the state rate guide lays out the full spread.