Charging a 2027 Rivian R1S Performance (22in) at home in Oregon

A 2027 Rivian R1S Performance (22in) draws 44.6 kWh per 100 miles per the EPA; at Oregon's 15.31¢/kWh residential rate that's $6.82 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 57.4% 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 2027 Rivian R1S Performance (22in) spend about $1,024 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,379 saved annually, at this mileage.

What one full charge costs

At Oregon's rate, fully covering this 2027 Rivian R1S Performance (22in)'s 371-mile EPA range costs about $25.32 (165.4 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 2027 Rivian R1S Performance (22in) in Oregon ranks 12,560 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (22in) ranks 354 of 400 EV models for raw efficiency, and Oregon ranks 21 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1S Performance (22in) 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. Curious how Oregon's 15.31¢/kWh compares? The guide to charging cost by state ranks every state side by side.