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

In Illinois, home electricity runs 19.22¢/kWh — put a 2026 Rivian R1T All-Terrain Dual Large (20in)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $8.53, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 46.8% 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 Dual Large (20in) in Illinois runs about $1,279 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,124 saved annually, at this mileage.

What one full charge costs

$24.64 — that's what Illinois's 19.22¢/kWh rate puts on the 128.2 kWh a 2026 Rivian R1T All-Terrain Dual Large (20in) needs for its full 289-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T All-Terrain Dual Large (20in) in Illinois ranks 15,817 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T All-Terrain Dual Large (20in) ranks 346 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.

Ask a licensed Illinois electrician to quote the install before this math becomes a real decision.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.