Rhode Island home charging cost for the 2026 Tesla Model 3 Performance

A 2026 Tesla Model 3 Performance draws 29.6 kWh per 100 miles per the EPA; at Rhode Island's 29.45¢/kWh residential rate that's $8.71 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 45.6% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Tesla Model 3 Performance costs roughly $1,307 a year to charge at home in Rhode Island, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,096 a year.

What one full charge costs

Covering the 2026 Tesla Model 3 Performance's EPA-rated 309-mile range takes about 91.4 kWh, which costs about $26.92 at Rhode Island's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

Where this ranks

This combination ranks 16,062 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Tesla Model 3 Performance alone ranks 52 of 400 models for efficiency; Rhode Island alone ranks 47 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.

Ask a licensed Rhode Island electrician to quote the install before this math becomes a real decision.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Rhode Island has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.