Charging a 2026 Tesla Model 3 Premium RWD at home in Rhode Island

At Rhode Island's residential electricity rate of 29.45¢/kWh, a 2026 Tesla Model 3 Premium RWD (rated 24.6 kWh per 100 miles by the EPA) costs $7.26 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. That works out to 54.7% cheaper per mile than gasoline in Rhode Island — charging at home is much cheaper than gas here.

What a year of driving costs

Rhode Island owners putting 15,000 annual miles on a 2026 Tesla Model 3 Premium RWD spend about $1,088 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,314 saved annually, at this mileage.

What one full charge costs

At Rhode Island's rate, fully covering this 2026 Tesla Model 3 Premium RWD's 363-mile EPA range costs about $26.34 (89.4 kWh) — the energy the EPA test actually used, not the battery's rated size.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Tesla Model 3 Premium RWD in Rhode Island ranks 13,721 for cost savings versus gas — 1 being the best deal nationally. Separately, the Tesla Model 3 Premium RWD ranks 4 of 400 EV models for raw efficiency, and Rhode Island ranks 47 of 51 for cheapest residential electricity.

Next step: home charger installation

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 Rhode Island 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. 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.