Charging a 2026 Tesla Model 3 Performance at home in Delaware

In Delaware, home electricity runs 17.74¢/kWh — put a 2026 Tesla Model 3 Performance's EPA-rated 29.6 kWh/100mi against that and 100 miles costs $5.25, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 67.2% cheaper per mile than gasoline in Delaware — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Delaware owners putting 15,000 annual miles on a 2026 Tesla Model 3 Performance spend about $787 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,616 saved annually, at this mileage.

Filling up the 2026 Tesla Model 3 Performance, in dollars

At Delaware's rate, fully covering this 2026 Tesla Model 3 Performance's 309-mile EPA range costs about $16.22 (91.4 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 Tesla Model 3 Performance in Delaware ranks 5,709 for cost savings versus gas — 1 being the best deal nationally. Separately, the Tesla Model 3 Performance ranks 52 of 400 EV models for raw efficiency, and Delaware ranks 33 of 51 for cheapest residential electricity.

Before you install a home charger in Delaware

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 Delaware 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 17.74¢/kWh, Delaware sits in the middle of the national range — the guide to why charging cost varies by state shows where.