2026 Rivian R1S Dual Large Plus (22in): home charging cost in Oklahoma

A 2026 Rivian R1S Dual Large Plus (22in) draws 40.9 kWh per 100 miles per the EPA; at Oklahoma's 13.37¢/kWh residential rate that's $5.47 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 65.9% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S Dual Large Plus (22in) charged at home in Oklahoma costs about $820/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,583 a year.

Cost of a full charge

A 2026 Rivian R1S Dual Large Plus (22in) needs roughly 135 kWh to reach its EPA-rated 330-mile range, which runs about $18.05 at 13.37¢/kWh in Oklahoma.

How this compares nationally

This combination ranks 6,793 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Large Plus (22in) alone ranks 278 of 400 models for efficiency; Oklahoma alone ranks 5 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Ask a licensed Oklahoma electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Large Plus (22in)'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.