Delaware home charging cost for the 2026 Tesla Model 3 Premium RWD

At Delaware's residential electricity rate of 17.74¢/kWh, a 2026 Tesla Model 3 Premium RWD (rated 24.6 kWh per 100 miles by the EPA) costs $4.37 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home costs a fraction of what gas would here: 72.7% less than gas per mile, here specifically.

2026 Tesla Model 3 Premium RWD: yearly cost in Delaware

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Tesla Model 3 Premium RWD costs roughly $656 a year to charge at home in Delaware, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,747 a year.

Filling up the 2026 Tesla Model 3 Premium RWD, in dollars

Covering the 2026 Tesla Model 3 Premium RWD's EPA-rated 363-mile range takes about 89.4 kWh, which costs about $15.87 at Delaware's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 1,958 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model 3 Premium RWD alone ranks 4 of 400 models for efficiency; Delaware alone ranks 33 of 51 states for electricity price.

Getting set up to charge a 2026 Tesla Model 3 Premium RWD at home

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 17.74¢/kWh, Delaware sits in the middle of the national range — the guide to why charging cost varies by state shows where.