What it costs to charge a 2026 Rivian R1T All-Terrain Tri Max (20in) in Illinois

At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Rivian R1T All-Terrain Tri Max (20in) (rated 49.8 kWh per 100 miles by the EPA) costs $9.58 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. That works out to 40.2% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1T All-Terrain Tri Max (20in) in Illinois runs about $1,437 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $966 saved annually, at this mileage.

What one full charge costs

$31.51 — that's what Illinois's 19.22¢/kWh rate puts on the 164 kWh a 2026 Rivian R1T All-Terrain Tri Max (20in) needs for its full 329-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T All-Terrain Tri Max (20in) in Illinois ranks 17,046 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T All-Terrain Tri Max (20in) ranks 389 of 400 EV models for raw efficiency, and Illinois ranks 36 of 51 for cheapest residential electricity.

Before you install a home charger in Illinois

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. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.