Charging a 2026 Audi Q4 45 e-tron at home in Maryland

A 2026 Audi Q4 45 e-tron draws 29.4 kWh per 100 miles per the EPA; at Maryland's 21.27¢/kWh residential rate that's $6.25 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 61% cheaper per mile than gasoline in Maryland — charging at home is much cheaper than gas here.

What a year of driving costs

Maryland owners putting 15,000 annual miles on a 2026 Audi Q4 45 e-tron spend about $938 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,465 saved annually, at this mileage.

What one full charge costs

At Maryland's rate, fully covering this 2026 Audi Q4 45 e-tron's 288-mile EPA range costs about $18.01 (84.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Audi Q4 45 e-tron in Maryland, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Audi Q4 45 e-tron in Maryland ranks 10,501 for cost savings versus gas — 1 being the best deal nationally. Separately, the Audi Q4 45 e-tron ranks 48 of 400 EV models for raw efficiency, and Maryland ranks 39 of 51 for cheapest residential electricity.

Before you install a home charger in Maryland

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 21.27¢/kWh, Maryland sits in the middle of the national range — the guide to why charging cost varies by state shows where.