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

In Oklahoma, home electricity runs 13.37¢/kWh — put a 2026 Rivian R1S Dual Large (20in)'s EPA-rated 42.9 kWh/100mi against that and 100 miles costs $5.73, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 64.2% 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 Dual Large (20in) spend about $860 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,543 saved annually, at this mileage.

What one full charge costs

At Oklahoma's rate, fully covering this 2026 Rivian R1S Dual Large (20in)'s 300-mile EPA range costs about $17.2 (128.6 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Dual Large (20in) in Oklahoma, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Large (20in) in Oklahoma ranks 8,157 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Large (20in) ranks 316 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 Dual Large (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 2026 Rivian R1S Dual Large (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.