Charging a 2026 Porsche Macan GTS Electric at home in Idaho

A 2026 Porsche Macan GTS Electric draws 36.7 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.7 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 70.7% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

What a year of driving costs

Idaho owners putting 15,000 annual miles on a 2026 Porsche Macan GTS Electric spend about $705 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,698 saved annually, at this mileage.

Cost of a full charge

At Idaho's rate, fully covering this 2026 Porsche Macan GTS Electric's 294-mile EPA range costs about $13.81 (107.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Porsche Macan GTS Electric in Idaho, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Porsche Macan GTS Electric in Idaho ranks 3,175 for cost savings versus gas — 1 being the best deal nationally. Separately, the Porsche Macan GTS Electric ranks 183 of 400 EV models for raw efficiency, and Idaho ranks 3 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 Idaho 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. Idaho is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.