2026 Mercedes-Benz EQS 450 4matic, ID Charging Cost

2026 Mercedes-Benz EQS 450 4matic: home charging cost in Idaho

At Idaho's residential electricity rate of 12.8¢/kWh, a 2026 Mercedes-Benz EQS 450 4matic (rated 37 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.

What a year of driving costs

Driving 15,000 miles a year, fueleconomy.gov's own default assumption, a 2026 Mercedes-Benz EQS 450 4matic charged at home in Idaho costs about $710/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,693 a year.

Filling up the 2026 Mercedes-Benz EQS 450 4matic, in dollars

A 2026 Mercedes-Benz EQS 450 4matic needs roughly 135.8 kWh to reach its EPA-rated 367-mile range, which runs about $17.38 at 12.8¢/kWh in Idaho.

How this compares nationally

This combination ranks 3,364 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; Idaho alone ranks 3 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.

Get quotes from local electricians for Level 2 charger installation in Idaho before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset, see the methodology guide. Idaho is one of the cheapest states for home electricity, the guide to why the cost varies so much by state covers what drives that.