Charging a 2026 Rivian R1S Dual Max (22in) at home in Illinois

At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Rivian R1S Dual Max (22in) (rated 39.9 kWh per 100 miles by the EPA) costs $7.68 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 52.1% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Illinois owners putting 15,000 annual miles on a 2026 Rivian R1S Dual Max (22in) spend about $1,151 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,252 saved annually, at this mileage.

Cost of a full charge

At Illinois's rate, fully covering this 2026 Rivian R1S Dual Max (22in)'s 410-mile EPA range costs about $31.47 (163.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Dual Max (22in) in Illinois, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Dual Max (22in) in Illinois ranks 14,515 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Dual Max (22in) ranks 265 of 400 EV models for raw efficiency, and Illinois ranks 36 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Dual Max (22in) at home

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.