Charging a 2027 Rivian R1S Performance (20in) at home in Oklahoma

At Oklahoma's residential electricity rate of 13.37¢/kWh, a 2027 Rivian R1S Performance (20in) (rated 47 kWh per 100 miles by the EPA) costs $6.28 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 60.8% cheaper per mile than gasoline in Oklahoma — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Oklahoma owners putting 15,000 annual miles on a 2027 Rivian R1S Performance (20in) spend about $942 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,461 saved annually, at this mileage.

Cost of a full charge

At Oklahoma's rate, fully covering this 2027 Rivian R1S Performance (20in)'s 348-mile EPA range costs about $21.86 (163.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Performance (20in) in Oklahoma ranks 10,622 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 Oklahoma ranks 5 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Rivian R1S Performance (20in) 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Performance (20in)'s cost in Oklahoma. 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.