Charging a 2026 Volvo EC40 Twin at home in Idaho

In Idaho, home electricity runs 12.8¢/kWh — put a 2026 Volvo EC40 Twin's EPA-rated 34.8 kWh/100mi against that and 100 miles costs $4.46, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 72.2% 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 Volvo EC40 Twin spend about $669 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,734 saved annually, at this mileage.

What one full charge costs

At Idaho's rate, fully covering this 2026 Volvo EC40 Twin's 268-mile EPA range costs about $11.95 (93.4 kWh) — the energy the EPA test actually used, not the battery's rated size.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Volvo EC40 Twin in Idaho ranks 2,236 for cost savings versus gas — 1 being the best deal nationally. Separately, the Volvo EC40 Twin ranks 144 of 400 EV models for raw efficiency, and Idaho ranks 3 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Volvo EC40 Twin at home

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

See the methodology guide for exactly which EIA and EPA figures feed 2026 Volvo EC40 Twin's cost in Idaho. 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.