2027 Rivian R1S Premium Long Range (20in), IL Charging Cost

Illinois home charging cost for the 2027 Rivian R1S Premium Long Range (20in)

At Illinois's residential electricity rate of 19.22¢/kWh, a 2027 Rivian R1S Premium Long Range (20in) (rated 42 kWh per 100 miles by the EPA) costs $8.07 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. Charging at home is much cheaper than gas here: 49.6% less than gas per mile, here specifically.

2027 Rivian R1S Premium Long Range (20in): yearly cost in Illinois

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Premium Long Range (20in) costs roughly $1,210 a year to charge at home in Illinois, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,193 a year.

Filling up the 2027 Rivian R1S Premium Long Range (20in), in dollars

Covering the 2027 Rivian R1S Premium Long Range (20in)'s EPA-rated 380-mile range takes about 159.5 kWh, which costs about $30.66 at Illinois's residential rate, figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 15,180 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium Long Range (20in) alone ranks 296 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Before you install a home charger in Illinois

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.

Line up a few Illinois electrician quotes for Level 2 install before you commit either way.

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.