Charging a 2026 Rivian R1S All-Terrain Performance Dual Large (20in) at home in Illinois

A 2026 Rivian R1S All-Terrain Performance Dual Large (20in) draws 44.4 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $8.53 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 46.8% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

What a year of driving costs

Illinois owners putting 15,000 annual miles on a 2026 Rivian R1S All-Terrain Performance Dual Large (20in) spend about $1,279 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,124 saved annually, at this mileage.

Filling up the 2026 Rivian R1S All-Terrain Performance Dual Large (20in), in dollars

At Illinois's rate, fully covering this 2026 Rivian R1S All-Terrain Performance Dual Large (20in)'s 289-mile EPA range costs about $24.64 (128.2 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Performance Dual Large (20in) in Illinois ranks 15,815 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Performance Dual Large (20in) ranks 345 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 All-Terrain Performance Dual Large (20in) 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.

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 All-Terrain Performance Dual Large (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.