2027 Rivian R1S Quad (20in AT): home charging cost in Oregon

At Oregon's residential electricity rate of 15.31¢/kWh, a 2027 Rivian R1S Quad (20in AT) (rated 50.1 kWh per 100 miles by the EPA) costs $7.67 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. Charging at home is much cheaper than gas here: 52.1% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Quad (20in AT) charged at home in Oregon costs about $1,151/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,252 a year.

What one full charge costs

A 2027 Rivian R1S Quad (20in AT) needs roughly 162.8 kWh to reach its EPA-rated 325-mile range, which runs about $24.93 at 15.31¢/kWh in Oregon.

How this compares nationally

This combination ranks 14,526 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad (20in AT) alone ranks 390 of 400 models for efficiency; Oregon alone ranks 21 of 51 states for electricity price.

Getting set up to charge a 2027 Rivian R1S Quad (20in AT) at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Get quotes from local electricians for Level 2 charger installation in Oregon before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 15.31¢/kWh, Oregon sits in the middle of the national range — the guide to why charging cost varies by state shows where.