What it costs to charge a 2026 Rivian R1S Dual Max (20in) in Illinois

In Illinois, home electricity runs 19.22¢/kWh — put a 2026 Rivian R1S Dual Max (20in)'s EPA-rated 42 kWh/100mi against that and 100 miles costs $8.07, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 49.6% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

2026 Rivian R1S Dual Max (20in): yearly cost in Illinois

Home charging this 2026 Rivian R1S Dual Max (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.

What one full charge costs

$30.66 — that's what Illinois's 19.22¢/kWh rate puts on the 159.5 kWh a 2026 Rivian R1S Dual Max (20in) needs for its full 380-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Max (20in) in Illinois ranks 15,184 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Max (20in) ranks 298 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Max (20in)'s cost in Illinois. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.