2026 Mercedes-Benz EQS 450 Plus: home charging cost in Illinois

In Illinois, home electricity runs 19.22¢/kWh — put a 2026 Mercedes-Benz EQS 450 Plus's EPA-rated 34 kWh/100mi against that and 100 miles costs $6.54, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 59.2% less than gas per mile, here specifically.

2026 Mercedes-Benz EQS 450 Plus: yearly cost in Illinois

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Mercedes-Benz EQS 450 Plus charged at home in Illinois costs about $981/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,422 a year.

What one full charge costs

A 2026 Mercedes-Benz EQS 450 Plus needs roughly 132.6 kWh to reach its EPA-rated 390-mile range, which runs about $25.5 at 19.22¢/kWh in Illinois.

How this compares nationally

This combination ranks 11,565 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Mercedes-Benz EQS 450 Plus alone ranks 122 of 400 models for efficiency; Illinois alone ranks 36 of 51 states for electricity price.

Before you install a home charger in Illinois

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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Mercedes-Benz EQS 450 Plus's cost in Illinois. At 19.22¢/kWh, Illinois sits in the middle of the national range — the guide to why charging cost varies by state shows where.