Connecticut home charging cost for the 2026 Tesla Model S

At Connecticut's residential electricity rate of 28.82¢/kWh, a 2026 Tesla Model S (rated 27.1 kWh per 100 miles by the EPA) costs $7.82 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 is much cheaper than gas here: 51.2% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Tesla Model S costs roughly $1,173 a year to charge at home in Connecticut, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,230 a year.

What one full charge costs

Covering the 2026 Tesla Model S's EPA-rated 410-mile range takes about 111.2 kWh, which costs about $32.06 at Connecticut'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 14,770 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model S alone ranks 20 of 400 models for efficiency; Connecticut alone ranks 45 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 Connecticut 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. Connecticut's 28.82¢/kWh rate ranks 45 of 51 states; the state rate guide lays out the full spread.