Illinois home charging cost for the 2026 Mercedes-Benz EQS 450 4matic

A 2026 Mercedes-Benz EQS 450 4matic draws 37 kWh per 100 miles per the EPA; at Illinois's 19.22¢/kWh residential rate that's $7.11 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: 55.6% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Mercedes-Benz EQS 450 4matic costs roughly $1,067 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 $1,336 a year.

What one full charge costs

Covering the 2026 Mercedes-Benz EQS 450 4matic's EPA-rated 367-mile range takes about 135.8 kWh, which costs about $26.1 at Illinois's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Mercedes-Benz EQS 450 4matic in Illinois, ranked

This combination ranks 13,293 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Mercedes-Benz EQS 450 4matic alone ranks 196 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Getting set up to charge a 2026 Mercedes-Benz EQS 450 4matic 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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Illinois's 19.22¢/kWh compares? The guide to charging cost by state ranks every state side by side.