Illinois home charging cost for the 2026 Tesla Model 3 Premium RWD

At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Tesla Model 3 Premium RWD (rated 24.6 kWh per 100 miles by the EPA) costs $4.74 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 costs a fraction of what gas would here: 70.4% 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 Tesla Model 3 Premium RWD costs roughly $710 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 $1,693 a year.

Cost of a full charge

Covering the 2026 Tesla Model 3 Premium RWD's EPA-rated 363-mile range takes about 89.4 kWh, which costs about $17.19 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 3,366 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model 3 Premium RWD alone ranks 4 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.