Illinois home charging cost for the 2026 Tesla Model S

A 2026 Tesla Model S draws 27.1 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $5.21 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 67.4% less than gas per mile, here specifically.

2026 Tesla Model S: yearly cost in Illinois

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Tesla Model S costs roughly $782 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 $1,621 a year.

Cost of a full charge

Covering the 2026 Tesla Model S's EPA-rated 410-mile range takes about 111.2 kWh, which costs about $21.38 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 5,540 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model S alone ranks 20 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Getting set up to charge a 2026 Tesla Model S 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.

Line up a few Illinois electrician quotes for Level 2 install before you commit either way.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.