Iowa home charging cost for the 2026 Rivian R1S Dual Max (22in)

At Iowa's residential electricity rate of 13.77¢/kWh, a 2026 Rivian R1S Dual Max (22in) (rated 39.9 kWh per 100 miles by the EPA) costs $5.5 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. Charging at home costs a fraction of what gas would here: 65.7% less than gas per mile, here specifically.

2026 Rivian R1S Dual Max (22in): yearly cost in Iowa

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1S Dual Max (22in) costs roughly $825 a year to charge at home in Iowa, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,578 a year.

Filling up the 2026 Rivian R1S Dual Max (22in), in dollars

Covering the 2026 Rivian R1S Dual Max (22in)'s EPA-rated 410-mile range takes about 163.7 kWh, which costs about $22.55 at Iowa's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Rivian R1S Dual Max (22in) in Iowa, ranked

This combination ranks 6,917 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Max (22in) alone ranks 265 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.

Ask a licensed Iowa electrician to quote the install before this math becomes a real decision.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 13.77¢/kWh, Iowa sits in the middle of the national range — the guide to why charging cost varies by state shows where.