What it costs to charge a 2027 Rivian R1T Premium Long Range (20in) in Illinois

A 2027 Rivian R1T Premium Long Range (20in) draws 42 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $8.07 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 49.6% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2027 Rivian R1T Premium Long Range (20in) in Illinois runs about $1,210 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,193 saved annually, at this mileage.

Cost of a full charge

$30.66 — that's what Illinois's 19.22¢/kWh rate puts on the 159.5 kWh a 2027 Rivian R1T Premium Long Range (20in) needs for its full 380-mile EPA range.

2027 Rivian R1T Premium Long Range (20in) in Illinois, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1T Premium Long Range (20in) in Illinois ranks 15,181 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium Long Range (20in) ranks 297 of 400 EV models for raw efficiency, and Illinois ranks 36 of 51 for cheapest residential electricity.

Next step: home charger installation

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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.