Colorado home charging cost for the 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels)

At Colorado's residential electricity rate of 16.65¢/kWh, a 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels) (rated 42.5 kWh per 100 miles by the EPA) costs $7.07 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: 55.9% 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 BMW i7 M70 xDrive Sedan (21 inch Wheels) costs roughly $1,060 a year to charge at home in Colorado, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,343 a year.

Cost of a full charge

Covering the 2026 BMW i7 M70 xDrive Sedan (21 inch Wheels)'s EPA-rated 285-mile range takes about 121 kWh, which costs about $20.14 at Colorado's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 13,176 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; Colorado alone ranks 30 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 Colorado before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Colorado's 16.65¢/kWh compares? The guide to charging cost by state ranks every state side by side.