What it costs to charge a 2026 Rivian R1T Performance Dual Max (22in) in Delaware

At Delaware's residential electricity rate of 17.74¢/kWh, a 2026 Rivian R1T Performance Dual Max (22in) (rated 38.8 kWh per 100 miles by the EPA) costs $6.89 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. That works out to 57% cheaper per mile than gasoline in Delaware — charging at home is much cheaper than gas here.

What a year of driving costs

Home charging this 2026 Rivian R1T Performance Dual Max (22in) in Delaware runs about $1,034 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,369 saved annually, at this mileage.

Filling up the 2026 Rivian R1T Performance Dual Max (22in), in dollars

$28.94 — that's what Delaware's 17.74¢/kWh rate puts on the 163.1 kWh a 2026 Rivian R1T Performance Dual Max (22in) needs for its full 420-mile EPA range.

Where this ranks

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1T Performance Dual Max (22in) in Delaware ranks 12,760 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1T Performance Dual Max (22in) ranks 235 of 400 EV models for raw efficiency, and Delaware ranks 33 of 51 for cheapest residential electricity.

Before you install a home charger in Delaware

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.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Curious how Delaware's 17.74¢/kWh compares? The guide to charging cost by state ranks every state side by side.