Iowa home charging cost for the 2026 Porsche Taycan Turbo S
A 2026 Porsche Taycan Turbo S draws 42.8 kWh per 100 miles per the EPA; at Iowa's 13.77¢/kWh residential rate that's $5.89 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: 63.2% 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 Porsche Taycan Turbo S costs roughly $883 a year to charge at home in Iowa, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,520 a year.
Cost of a full charge
Covering the 2026 Porsche Taycan Turbo S's EPA-rated 266-mile range takes about 113.8 kWh, which costs about $15.66 at Iowa'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 8,885 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Porsche Taycan Turbo S alone ranks 311 of 400 models for efficiency; Iowa alone ranks 9 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 Iowa 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. Iowa's 13.77¢/kWh rate ranks 9 of 51 states; the state rate guide lays out the full spread.