Charging a 2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires) at home in Washington

At Washington's residential electricity rate of 14.35¢/kWh, a 2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires) (rated 38.3 kWh per 100 miles by the EPA) costs $5.49 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. That works out to 65.7% 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 2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires) spend about $824 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,579 saved annually, at this mileage.

Filling up the 2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires), in dollars

At Washington's rate, fully covering this 2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires)'s 348-mile EPA range costs about $19.12 (133.2 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires) in Washington, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 BMW i7 xDrive60 Sedan (21 inch Summer Tires) in Washington ranks 6,990 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 xDrive60 Sedan (21 inch Summer Tires) ranks 221 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.

Ask a licensed Washington electrician to quote the install before this math becomes a real decision.

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 14.35¢/kWh, Washington sits in the middle of the national range — the guide to why charging cost varies by state shows where.