Charging a 2027 Rivian R1S Premium Long Range (22in) at home in Oklahoma

In Oklahoma, home electricity runs 13.37¢/kWh — put a 2027 Rivian R1S Premium Long Range (22in)'s EPA-rated 39.9 kWh/100mi against that and 100 miles costs $5.34, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 66.7% cheaper per mile than gasoline in Oklahoma — charging at home costs a fraction of what gas would here.

What a year of driving costs

Oklahoma owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (22in) spend about $801 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,602 saved annually, at this mileage.

What one full charge costs

At Oklahoma's rate, fully covering this 2027 Rivian R1S Premium Long Range (22in)'s 410-mile EPA range costs about $21.89 (163.7 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 Premium Long Range (22in) in Oklahoma ranks 6,162 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (22in) ranks 264 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 Premium Long Range (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 Oklahoma 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. 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.