Charging a 2026 Rivian R1S Performance Dual Large Plus (20in) at home in Oregon

At Oregon's residential electricity rate of 15.31¢/kWh, a 2026 Rivian R1S Performance Dual Large Plus (20in) (rated 43.1 kWh per 100 miles by the EPA) costs $6.6 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 58.8% cheaper per mile than gasoline in Oregon — charging at home is much cheaper than gas here.

2026 Rivian R1S Performance Dual Large Plus (20in): yearly cost in Oregon

Oregon owners putting 15,000 annual miles on a 2026 Rivian R1S Performance Dual Large Plus (20in) spend about $990 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,413 saved annually, at this mileage.

What one full charge costs

At Oregon's rate, fully covering this 2026 Rivian R1S Performance Dual Large Plus (20in)'s 317-mile EPA range costs about $20.93 (136.7 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 Performance Dual Large Plus (20in) in Oregon ranks 11,832 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large Plus (20in) ranks 328 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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Performance Dual Large Plus (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.