Illinois home charging cost for the 2026 Rivian R1T Dual Max (20in)

At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Rivian R1T Dual Max (20in) (rated 42 kWh per 100 miles by the EPA) costs $8.07 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. Charging at home is much cheaper than gas here: 49.6% 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 R1T Dual Max (20in) costs roughly $1,210 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 $1,193 a year.

What one full charge costs

Covering the 2026 Rivian R1T Dual Max (20in)'s EPA-rated 380-mile range takes about 159.5 kWh, which costs about $30.66 at Illinois's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 15,186 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Dual Max (20in) alone ranks 300 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Next step: home charger installation

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.