Charging a 2027 Subaru Solterra 20 AWD at home in Iowa

At Iowa's residential electricity rate of 13.77¢/kWh, a 2027 Subaru Solterra 20 AWD (rated 28.9 kWh per 100 miles by the EPA) costs $3.98 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 75.1% cheaper per mile than gasoline in Iowa — charging at home costs a fraction of what gas would here.

2027 Subaru Solterra 20 AWD: yearly cost in Iowa

Iowa owners putting 15,000 annual miles on a 2027 Subaru Solterra 20 AWD spend about $597 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,806 saved annually, at this mileage.

Filling up the 2027 Subaru Solterra 20 AWD, in dollars

At Iowa's rate, fully covering this 2027 Subaru Solterra 20 AWD's 278-mile EPA range costs about $11.07 (80.4 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 2027 Subaru Solterra 20 AWD in Iowa ranks 888 for cost savings versus gas — 1 being the best deal nationally. Separately, the Subaru Solterra 20 AWD ranks 35 of 400 EV models for raw efficiency, and Iowa ranks 9 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 Iowa 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 2027 Subaru Solterra 20 AWD's cost in Iowa. At 13.77¢/kWh, Iowa sits in the middle of the national range — the guide to why charging cost varies by state shows where.