2026 Tesla Model 3 Standard RWD: home charging cost in Delaware

A 2026 Tesla Model 3 Standard RWD draws 24.3 kWh per 100 miles per the EPA; at Delaware's 17.74¢/kWh residential rate that's $4.31 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 73.1% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Tesla Model 3 Standard RWD charged at home in Delaware costs about $647/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,756 a year.

Cost of a full charge

A 2026 Tesla Model 3 Standard RWD needs roughly 78 kWh to reach its EPA-rated 321-mile range, which runs about $13.84 at 17.74¢/kWh in Delaware.

2026 Tesla Model 3 Standard RWD in Delaware, ranked

This combination ranks 1,750 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model 3 Standard RWD alone ranks 2 of 400 models for efficiency; Delaware alone ranks 33 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.

Line up a few Delaware electrician quotes for Level 2 install before you commit either way.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Tesla Model 3 Standard RWD's cost in Delaware. At 17.74¢/kWh, Delaware sits in the middle of the national range — the guide to why charging cost varies by state shows where.