2026 Rivian R1T All-Terrain Performance Dual Large (20in): home charging cost in Illinois
At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Rivian R1T All-Terrain Performance Dual Large (20in) (rated 44.4 kWh per 100 miles by the EPA) costs $8.53 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: 46.8% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1T All-Terrain Performance Dual Large (20in) charged at home in Illinois costs about $1,279/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,124 a year.
Filling up the 2026 Rivian R1T All-Terrain Performance Dual Large (20in), in dollars
A 2026 Rivian R1T All-Terrain Performance Dual Large (20in) needs roughly 128.2 kWh to reach its EPA-rated 289-mile range, which runs about $24.64 at 19.22¢/kWh in Illinois.
How this compares nationally
This combination ranks 15,818 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T All-Terrain Performance Dual Large (20in) alone ranks 347 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.
Getting set up to charge a 2026 Rivian R1T All-Terrain Performance Dual Large (20in) at home
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.
Get quotes from local electricians for Level 2 charger installation in Illinois before deciding.
Where these figures come from
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.