2027 Rivian R1S Quad (22in): home charging cost in Iowa
In Iowa, home electricity runs 13.77¢/kWh — put a 2027 Rivian R1S Quad (22in)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $6.11, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 61.9% less than gas per mile, here specifically.
Annual cost, at 15 thousands miles a year
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Quad (22in) charged at home in Iowa costs about $916/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,486 a year.
Filling up the 2027 Rivian R1S Quad (22in), in dollars
A 2027 Rivian R1S Quad (22in) needs roughly 166 kWh to reach its EPA-rated 374-mile range, which runs about $22.85 at 13.77¢/kWh in Iowa.
2027 Rivian R1S Quad (22in) in Iowa, ranked
This combination ranks 9,877 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad (22in) alone ranks 348 of 400 models for efficiency; Iowa alone ranks 9 of 51 states for electricity price.
Next step: home charger installation
The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.
Line up a few Iowa electrician quotes for Level 2 install before you commit either way.
Where these figures come from
Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Iowa's 13.77¢/kWh rate ranks 9 of 51 states; the state rate guide lays out the full spread.