Charging a 2026 Porsche Taycan 4S Perf Battery Plus 19in All-Season (M+S) at home in Illinois

At Illinois's residential electricity rate of 19.22¢/kWh, a 2026 Porsche Taycan 4S Perf Battery Plus 19in All-Season (M+S) (rated 36.2 kWh per 100 miles by the EPA) costs $6.97 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 56.5% cheaper per mile than gasoline in Illinois — charging at home is much cheaper than gas here.

What a year of driving costs

Illinois owners putting 15,000 annual miles on a 2026 Porsche Taycan 4S Perf Battery Plus 19in All-Season (M+S) spend about $1,045 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,358 saved annually, at this mileage.

Cost of a full charge

At Illinois's rate, fully covering this 2026 Porsche Taycan 4S Perf Battery Plus 19in All-Season (M+S)'s 315-mile EPA range costs about $21.94 (114.2 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 Porsche Taycan 4S Perf Battery Plus 19in All-Season (M+S) in Illinois ranks 12,981 for cost savings versus gas — 1 being the best deal nationally. Separately, the Porsche Taycan 4S Perf Battery Plus 19in All-Season (M+S) ranks 173 of 400 EV models for raw efficiency, and Illinois ranks 36 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.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Illinois's 19.22¢/kWh rate ranks 36 of 51 states; the state rate guide lays out the full spread.