Charging a 2026 Rivian R1S Quad Max (22in UHP) at home in Oklahoma

At Oklahoma's residential electricity rate of 13.37¢/kWh, a 2026 Rivian R1S Quad Max (22in UHP) (rated 47.3 kWh per 100 miles by the EPA) costs $6.33 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 60.5% cheaper per mile than gasoline in Oklahoma — charging at home is much cheaper than gas here.

2026 Rivian R1S Quad Max (22in UHP): yearly cost in Oklahoma

Oklahoma owners putting 15,000 annual miles on a 2026 Rivian R1S Quad Max (22in UHP) spend about $950 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,453 saved annually, at this mileage.

Cost of a full charge

At Oklahoma's rate, fully covering this 2026 Rivian R1S Quad Max (22in UHP)'s 338-mile EPA range costs about $21.4 (160 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 2026 Rivian R1S Quad Max (22in UHP) in Oklahoma ranks 10,801 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad Max (22in UHP) ranks 373 of 400 EV models for raw efficiency, and Oklahoma ranks 5 of 51 for cheapest residential electricity.

Before you install a home charger in Oklahoma

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

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.