2026 Rivian R1S Performance Dual Max (20in): home charging cost in Delaware

At Delaware's residential electricity rate of 17.74¢/kWh, a 2026 Rivian R1S Performance Dual Max (20in) (rated 42 kWh per 100 miles by the EPA) costs $7.45 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 is much cheaper than gas here: 53.5% less than gas per mile, here specifically.

2026 Rivian R1S Performance Dual Max (20in): yearly cost in Delaware

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S Performance Dual Max (20in) charged at home in Delaware costs about $1,117/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,286 a year.

Filling up the 2026 Rivian R1S Performance Dual Max (20in), in dollars

A 2026 Rivian R1S Performance Dual Max (20in) needs roughly 159.5 kWh to reach its EPA-rated 380-mile range, which runs about $28.29 at 17.74¢/kWh in Delaware.

Where this ranks

This combination ranks 14,094 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance Dual Max (20in) alone ranks 299 of 400 models for efficiency; Delaware alone ranks 33 of 51 states for electricity price.

Before you install a home charger in Delaware

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.

Get quotes from local electricians for Level 2 charger installation in Delaware before deciding.

Where these figures come from

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.