2026 Rivian R1S Performance Dual Large (20in): home charging cost in Iowa

In Iowa, home electricity runs 13.77¢/kWh — put a 2026 Rivian R1S Performance Dual Large (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. Charging at home is much cheaper than gas here: 63.1% less than gas per mile, here specifically.

2026 Rivian R1S Performance Dual Large (20in): yearly cost in Iowa

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S Performance Dual Large (20in) charged at home in Iowa costs about $886/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,517 a year.

What one full charge costs

A 2026 Rivian R1S Performance Dual Large (20in) needs roughly 128.6 kWh to reach its EPA-rated 300-mile range, which runs about $17.71 at 13.77¢/kWh in Iowa.

2026 Rivian R1S Performance Dual Large (20in) in Iowa, ranked

This combination ranks 8,955 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance Dual Large (20in) alone ranks 317 of 400 models for efficiency; Iowa alone ranks 9 of 51 states for electricity price.

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

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. Curious how Iowa's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.