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

In Oklahoma, home electricity runs 13.37¢/kWh — put a 2027 Rivian R1S Performance (20in AT)'s EPA-rated 49.8 kWh/100mi against that and 100 miles costs $6.66, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 58.4% cheaper per mile than gasoline in Oklahoma — charging at home is much cheaper than gas here.

2027 Rivian R1S Performance (20in AT): yearly cost in Oklahoma

Oklahoma owners putting 15,000 annual miles on a 2027 Rivian R1S Performance (20in AT) spend about $999 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,404 saved annually, at this mileage.

Cost of a full charge

At Oklahoma's rate, fully covering this 2027 Rivian R1S Performance (20in AT)'s 329-mile EPA range costs about $21.92 (164 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 AT) in Oklahoma ranks 12,072 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance (20in AT) ranks 386 of 400 EV models for raw efficiency, and Oklahoma ranks 5 of 51 for cheapest residential electricity.

Next step: home charger installation

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

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