Iowa home charging cost for the 2026 Rivian R1T Tri Max (22in)
A 2026 Rivian R1T Tri Max (22in) draws 44.6 kWh per 100 miles per the EPA; at Iowa's 13.77¢/kWh residential rate that's $6.14 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 61.7% less than gas per mile, here specifically.
What a year of driving costs
At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1T Tri Max (22in) costs roughly $921 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 $1,482 a year.
Filling up the 2026 Rivian R1T Tri Max (22in), in dollars
Covering the 2026 Rivian R1T Tri Max (22in)'s EPA-rated 371-mile range takes about 165.4 kWh, which costs about $22.77 at Iowa's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.
Where this ranks
This combination ranks 10,037 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T Tri Max (22in) alone ranks 357 of 400 models for efficiency; Iowa alone ranks 9 of 51 states for electricity price.
Before you install a home charger in Iowa
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.