Charging a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) at home in South Carolina

At South Carolina's residential electricity rate of 16.04¢/kWh, a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) (rated 38.9 kWh per 100 miles by the EPA) costs $6.25 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 61% cheaper per mile than gasoline in South Carolina — charging at home is much cheaper than gas here.

2026 BMW i7 eDrive50 Sedan (21 inch Wheels): yearly cost in South Carolina

South Carolina owners putting 15,000 annual miles on a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) spend about $937 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,466 saved annually, at this mileage.

Filling up the 2026 BMW i7 eDrive50 Sedan (21 inch Wheels), in dollars

At South Carolina's rate, fully covering this 2026 BMW i7 eDrive50 Sedan (21 inch Wheels)'s 307-mile EPA range costs about $19.18 (119.6 kWh) — the energy the EPA test actually used, not the battery's rated size.

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

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) in South Carolina ranks 10,520 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i7 eDrive50 Sedan (21 inch Wheels) ranks 236 of 400 EV models for raw efficiency, and South Carolina ranks 27 of 51 for cheapest residential electricity.

Next step: home charger installation

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 South Carolina 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. South Carolina's 16.04¢/kWh rate ranks 27 of 51 states; the state rate guide lays out the full spread.