Charging a 2027 Rivian R1S Premium Long Range (20in) at home in Iowa

At Iowa's residential electricity rate of 13.77¢/kWh, a 2027 Rivian R1S Premium Long Range (20in) (rated 42 kWh per 100 miles by the EPA) costs $5.78 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 63.9% cheaper per mile than gasoline in Iowa — charging at home is much cheaper than gas here.

2027 Rivian R1S Premium Long Range (20in): yearly cost in Iowa

Iowa owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (20in) spend about $867 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,536 saved annually, at this mileage.

Cost of a full charge

At Iowa's rate, fully covering this 2027 Rivian R1S Premium Long Range (20in)'s 380-mile EPA range costs about $21.96 (159.5 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Rivian R1S Premium Long Range (20in) in Iowa, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (20in) in Iowa ranks 8,372 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (20in) ranks 296 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.

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

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.