Charging a 2026 Rivian R1S All-Terrain Dual Large (20in) at home in Iowa

A 2026 Rivian R1S All-Terrain Dual Large (20in) draws 44.4 kWh per 100 miles per the EPA; at Iowa's 13.77¢/kWh residential rate that's $6.11 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 61.9% cheaper per mile than gasoline in Iowa — charging at home is much cheaper than gas here.

2026 Rivian R1S All-Terrain Dual Large (20in): yearly cost in Iowa

Iowa owners putting 15,000 annual miles on a 2026 Rivian R1S All-Terrain Dual Large (20in) spend about $916 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,487 saved annually, at this mileage.

What one full charge costs

At Iowa's rate, fully covering this 2026 Rivian R1S All-Terrain Dual Large (20in)'s 289-mile EPA range costs about $17.65 (128.2 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S All-Terrain Dual Large (20in) in Iowa, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Large (20in) in Iowa ranks 9,881 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Large (20in) ranks 344 of 400 EV models for raw efficiency, and Iowa ranks 9 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S All-Terrain Dual Large (20in) at home

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.

Line up a few Iowa electrician quotes for Level 2 install before you commit either way.

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Iowa's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.