What it costs to charge a 2027 Rivian R1S Performance (20in) in Oregon

In Oregon, home electricity runs 15.31¢/kWh — put a 2027 Rivian R1S Performance (20in)'s EPA-rated 47 kWh/100mi against that and 100 miles costs $7.19, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 55.1% cheaper per mile than gasoline in Oregon — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2027 Rivian R1S Performance (20in) in Oregon runs about $1,079 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,324 saved annually, at this mileage.

What one full charge costs

$25.03 — that's what Oregon's 15.31¢/kWh rate puts on the 163.5 kWh a 2027 Rivian R1S Performance (20in) needs for its full 348-mile EPA range.

2027 Rivian R1S Performance (20in) in Oregon, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (20in) in Oregon ranks 13,557 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (20in) ranks 369 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. Oregon's 15.31¢/kWh rate ranks 21 of 51 states; the state rate guide lays out the full spread.