Charging a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) at home in South Carolina
In South Carolina, home electricity runs 16.04¢/kWh — put a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels)'s EPA-rated 28.5 kWh/100mi against that and 100 miles costs $4.58, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 71.4% cheaper per mile than gasoline in South Carolina — charging at home costs a fraction of what gas would here.
2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels): yearly cost in South Carolina
South Carolina owners putting 15,000 annual miles on a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) spend about $686 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,717 saved annually, at this mileage.
What one full charge costs
At South Carolina's rate, fully covering this 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels)'s 333-mile EPA range costs about $15.24 (95 kWh) — the energy the EPA test actually used, not the battery's rated size.
How this compares nationally
Among all 20,400 state-and-model combinations this site tracks, charging a 2026 BMW i4 eDrive40 Gran Coupe (18 inch wheels) in South Carolina ranks 2,728 for cost savings versus gas — 1 being the best deal nationally. Separately, the BMW i4 eDrive40 Gran Coupe (18 inch wheels) ranks 31 of 400 EV models for raw efficiency, and South Carolina ranks 27 of 51 for cheapest residential electricity.
Before you install a home charger in South Carolina
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.
Get quotes from local electricians for Level 2 charger installation in South Carolina before deciding.
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.