Illinois home charging cost for the 2026 Rivian R1S All-Terrain Performance Dual Max (20in)

A 2026 Rivian R1S All-Terrain Performance Dual Max (20in) draws 43.2 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $8.31 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 48.1% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1S All-Terrain Performance Dual Max (20in) costs roughly $1,246 a year to charge at home in Illinois, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,157 a year.

Cost of a full charge

Covering the 2026 Rivian R1S All-Terrain Performance Dual Max (20in)'s EPA-rated 370-mile range takes about 159.9 kWh, which costs about $30.74 at Illinois's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 15,529 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Performance Dual Max (20in) alone ranks 334 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Before you install a home charger in Illinois

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

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

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.