2027 Rivian R1S Premium (20in): home charging cost in Oklahoma

In Oklahoma, home electricity runs 13.37¢/kWh — put a 2027 Rivian R1S Premium (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. Charging at home is much cheaper than gas here: 64.2% less than gas per mile, here specifically.

2027 Rivian R1S Premium (20in): yearly cost in Oklahoma

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Premium (20in) charged at home in Oklahoma costs about $860/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,543 a year.

Cost of a full charge

A 2027 Rivian R1S Premium (20in) needs roughly 128.6 kWh to reach its EPA-rated 300-mile range, which runs about $17.2 at 13.37¢/kWh in Oklahoma.

How this compares nationally

This combination ranks 8,154 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium (20in) alone ranks 314 of 400 models for efficiency; Oklahoma alone ranks 5 of 51 states for electricity price.

Before you install a home charger in Oklahoma

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

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.