What it costs to charge a 2026 Rivian R1S All-Terrain Performance Dual Large Plus (20in) in Oregon

At Oregon's residential electricity rate of 15.31¢/kWh, a 2026 Rivian R1S All-Terrain Performance Dual Large Plus (20in) (rated 46.9 kWh per 100 miles by the EPA) costs $7.18 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 55.2% 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 All-Terrain Performance Dual Large Plus (20in) in Oregon runs about $1,077 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,326 saved annually, at this mileage.

Cost of a full charge

$20.96 — that's what Oregon's 15.31¢/kWh rate puts on the 136.9 kWh a 2026 Rivian R1S All-Terrain Performance Dual Large Plus (20in) needs for its full 292-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 Performance Dual Large Plus (20in) in Oregon ranks 13,494 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Performance Dual Large Plus (20in) ranks 366 of 400 EV models for raw efficiency, and Oregon ranks 21 of 51 for cheapest residential electricity.

Before you install a home charger in Oregon

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 15.31¢/kWh, Oregon sits in the middle of the national range — the guide to why charging cost varies by state shows where.