Charging a 2027 Volvo EX90 Twin Motor at home in Idaho

A 2027 Volvo EX90 Twin Motor draws 39 kWh per 100 miles per the EPA; at Idaho's 12.8¢/kWh residential rate that's $4.99 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 68.8% cheaper per mile than gasoline in Idaho — charging at home costs a fraction of what gas would here.

Annual cost, at 15 thousands miles a year

Idaho owners putting 15,000 annual miles on a 2027 Volvo EX90 Twin Motor spend about $749 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,654 saved annually, at this mileage.

What one full charge costs

At Idaho's rate, fully covering this 2027 Volvo EX90 Twin Motor's 300-mile EPA range costs about $14.98 (117 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 2027 Volvo EX90 Twin Motor in Idaho ranks 4,503 for cost savings versus gas — 1 being the best deal nationally. Separately, the Volvo EX90 Twin Motor ranks 238 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.

Get quotes from local electricians for Level 2 charger installation in Idaho before deciding.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. 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.