2026 BMW i7 M70 xDrive Sedan (21 inch Wheels): home charging cost in Mississippi

In Mississippi, home electricity runs 15.35¢/kWh — put a 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels)'s EPA-rated 42.5 kWh/100mi against that and 100 miles costs $6.52, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 59.3% 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 BMW i7 M70 xDrive Sedan (21 inch Wheels) charged at home in Mississippi costs about $977/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,426 a year.

Cost of a full charge

A 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) needs roughly 121 kWh to reach its EPA-rated 285-mile range, which runs about $18.57 at 15.35¢/kWh in Mississippi.

Where this ranks

This combination ranks 11,522 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 M70 xDrive Sedan (21 inch Wheels) alone ranks 310 of 400 models for efficiency; Mississippi alone ranks 22 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 Mississippi 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. At 15.35¢/kWh, Mississippi sits in the middle of the national range — the guide to why charging cost varies by state shows where.