2027 Rivian R1S Performance (20in AT): home charging cost in Illinois

A 2027 Rivian R1S Performance (20in AT) draws 49.8 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $9.58 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 40.2% less than gas per mile, here specifically.

2027 Rivian R1S Performance (20in AT): yearly cost in Illinois

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Performance (20in AT) charged at home in Illinois costs about $1,437/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $966 a year.

Cost of a full charge

A 2027 Rivian R1S Performance (20in AT) needs roughly 164 kWh to reach its EPA-rated 329-mile range, which runs about $31.51 at 19.22¢/kWh in Illinois.

How this compares nationally

This combination ranks 17,043 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance (20in AT) alone ranks 386 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Getting set up to charge a 2027 Rivian R1S Performance (20in AT) at home

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.

Get quotes from local electricians for Level 2 charger installation in Illinois before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.