Charging a 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) at home in Washington

In Washington, home electricity runs 14.35¢/kWh — put a 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels)'s EPA-rated 31.1 kWh/100mi against that and 100 miles costs $4.46, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 72.1% cheaper per mile than gasoline in Washington — charging at home costs a fraction of what gas would here.

What a year of driving costs

Washington owners putting 15,000 annual miles on a 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) spend about $669 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,734 saved annually, at this mileage.

What one full charge costs

At Washington's rate, fully covering this 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels)'s 307-mile EPA range costs about $13.7 (95.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i4 eDrive40 Gran Coupe (19 inch Wheels) in Washington ranks 2,356 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i4 eDrive40 Gran Coupe (19 inch Wheels) ranks 77 of 400 EV models for raw efficiency, and Washington ranks 15 of 51 for cheapest residential electricity.

Before you install a home charger in Washington

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few Washington electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 14.35¢/kWh, Washington sits in the middle of the national range — the guide to why charging cost varies by state shows where.