Charging a 2026 Rivian R1S Performance Dual Max (20in) at home in Oklahoma

In Oklahoma, home electricity runs 13.37¢/kWh — put a 2026 Rivian R1S Performance Dual Max (20in)'s EPA-rated 42 kWh/100mi against that and 100 miles costs $5.61, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 65% 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 2026 Rivian R1S Performance Dual Max (20in) spend about $842 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,561 saved annually, at this mileage.

Cost of a full charge

At Oklahoma's rate, fully covering this 2026 Rivian R1S Performance Dual Max (20in)'s 380-mile EPA range costs about $21.32 (159.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Max (20in) in Oklahoma ranks 7,487 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Max (20in) ranks 299 of 400 EV models for raw efficiency, and Oklahoma ranks 5 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Performance Dual Max (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.

Line up a few Oklahoma electrician quotes for Level 2 install before you commit either way.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. 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.