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

In Maryland, home electricity runs 21.27¢/kWh — put a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels)'s EPA-rated 38.9 kWh/100mi against that and 100 miles costs $8.28, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 48.3% 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 Maryland costs about $1,243/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,160 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 $25.43 at 21.27¢/kWh in Maryland.

How this compares nationally

This combination ranks 15,475 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; Maryland alone ranks 39 of 51 states for electricity price.

Next step: home charger installation

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.

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

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 BMW i7 eDrive50 Sedan (21 inch Wheels)'s cost in Maryland. Maryland's 21.27¢/kWh rate ranks 39 of 51 states; the state rate guide lays out the full spread.