2027 Rivian R1T Premium Long Range (20in AT): home charging cost in Oklahoma
At Oklahoma's residential electricity rate of 13.37¢/kWh, a 2027 Rivian R1T Premium Long Range (20in AT) (rated 43.2 kWh per 100 miles by the EPA) costs $5.78 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: 63.9% 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 R1T Premium Long Range (20in AT) charged at home in Oklahoma costs about $867/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,536 a year.
Cost of a full charge
A 2027 Rivian R1T Premium Long Range (20in AT) needs roughly 159.9 kWh to reach its EPA-rated 370-mile range, which runs about $21.38 at 13.37¢/kWh in Oklahoma.
2027 Rivian R1T Premium Long Range (20in AT) in Oklahoma, ranked
This combination ranks 8,424 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Premium Long Range (20in AT) alone ranks 332 of 400 models for efficiency; Oklahoma alone ranks 5 of 51 states for electricity price.
Before you install a home charger in Oklahoma
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.
Line up a few Oklahoma electrician quotes for Level 2 install before you commit either way.
Where these figures come from
The methodology guide names the exact EIA and EPA tables behind this page's numbers. Oklahoma is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.