Wisconsin home charging cost for the 2026 BMW iX M70 (21 inch Wheels)
At Wisconsin's residential electricity rate of 18.99¢/kWh, a 2026 BMW iX M70 (21 inch Wheels) (rated 42 kWh per 100 miles by the EPA) costs $7.97 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 is much cheaper than gas here: 50.2% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
At fueleconomy.gov's default of 15,000 annual miles, the 2026 BMW iX M70 (21 inch Wheels) costs roughly $1,196 a year to charge at home in Wisconsin, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,207 a year.
Cost of a full charge
Covering the 2026 BMW iX M70 (21 inch Wheels)'s EPA-rated 303-mile range takes about 127.2 kWh, which costs about $24.16 at Wisconsin'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 15,030 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW iX M70 (21 inch Wheels) alone ranks 302 of 400 models for efficiency; Wisconsin alone ranks 35 of 51 states for electricity price.
Before you install a home charger in Wisconsin
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 Wisconsin 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 18.99¢/kWh, Wisconsin sits in the middle of the national range — the guide to why charging cost varies by state shows where.