What it costs to charge a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) in Illinois

A 2026 Rivian R1S All-Terrain Dual Large Plus (20in) draws 46.9 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $9.01 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 43.7% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

2026 Rivian R1S All-Terrain Dual Large Plus (20in): yearly cost in Illinois

Home charging this 2026 Rivian R1S All-Terrain Dual Large Plus (20in) in Illinois runs about $1,352 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,051 saved annually, at this mileage.

Cost of a full charge

$26.31 — that's what Illinois's 19.22¢/kWh rate puts on the 136.9 kWh a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) needs for its full 292-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Large Plus (20in) in Illinois ranks 16,397 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Large Plus (20in) ranks 365 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 Dual Large Plus (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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Large Plus (20in)'s cost in Illinois. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.