2026 BMW i7 eDrive50 Sedan (21 inch Wheels): home charging cost in Washington

In Washington, home electricity runs 14.35¢/kWh — put a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels)'s EPA-rated 38.9 kWh/100mi against that and 100 miles costs $5.59, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 65.1% 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 eDrive50 Sedan (21 inch Wheels) charged at home in Washington costs about $838/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,565 a year.

What one full charge costs

A 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) needs roughly 119.6 kWh to reach its EPA-rated 307-mile range, which runs about $17.16 at 14.35¢/kWh in Washington.

2026 BMW i7 eDrive50 Sedan (21 inch Wheels) in Washington, ranked

This combination ranks 7,428 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 eDrive50 Sedan (21 inch Wheels) alone ranks 236 of 400 models for efficiency; Washington alone ranks 15 of 51 states for electricity price.

Getting set up to charge a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) at home

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 Washington before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Washington's 14.35¢/kWh compares? The guide to charging cost by state ranks every state side by side.