What it costs to charge a 2026 Rivian R1S Dual Large (20in) in Oregon

At Oregon's residential electricity rate of 15.31¢/kWh, a 2026 Rivian R1S Dual Large (20in) (rated 42.9 kWh per 100 miles by the EPA) costs $6.56 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 59% cheaper per mile than gasoline in Oregon — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1S Dual Large (20in) in Oregon runs about $985 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,418 saved annually, at this mileage.

Filling up the 2026 Rivian R1S Dual Large (20in), in dollars

$19.69 — that's what Oregon's 15.31¢/kWh rate puts on the 128.6 kWh a 2026 Rivian R1S Dual Large (20in) needs for its full 300-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large (20in) in Oregon ranks 11,694 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large (20in) ranks 316 of 400 EV models for raw efficiency, and Oregon ranks 21 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Dual Large (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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Oregon's 15.31¢/kWh rate ranks 21 of 51 states; the state rate guide lays out the full spread.