Charging a 2027 Rivian R1T Premium (20in) at home in Iowa

In Iowa, home electricity runs 13.77¢/kWh — put a 2027 Rivian R1T Premium (20in)'s EPA-rated 42.9 kWh/100mi against that and 100 miles costs $5.9, versus $16.02 for a gas car averaging 25.5 mpg. That works out to 63.1% cheaper per mile than gasoline in Iowa — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Iowa owners putting 15,000 annual miles on a 2027 Rivian R1T Premium (20in) spend about $886 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,517 saved annually, at this mileage.

What one full charge costs

At Iowa's rate, fully covering this 2027 Rivian R1T Premium (20in)'s 300-mile EPA range costs about $17.71 (128.6 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 Rivian R1T Premium (20in) in Iowa ranks 8,952 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Premium (20in) ranks 315 of 400 EV models for raw efficiency, and Iowa ranks 9 of 51 for cheapest residential electricity.

Before you install a home charger in Iowa

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

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Iowa's 13.77¢/kWh rate ranks 9 of 51 states; the state rate guide lays out the full spread.