Delaware home charging cost for the 2026 Rivian R1S Quad Max (20in AT)

At Delaware's residential electricity rate of 17.74¢/kWh, a 2026 Rivian R1S Quad Max (20in AT) (rated 50.1 kWh per 100 miles by the EPA) costs $8.89 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. Charging at home is much cheaper than gas here: 44.5% less than gas per mile, here specifically.

2026 Rivian R1S Quad Max (20in AT): yearly cost in Delaware

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Rivian R1S Quad Max (20in AT) costs roughly $1,333 a year to charge at home in Delaware, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,070 a year.

Filling up the 2026 Rivian R1S Quad Max (20in AT), in dollars

Covering the 2026 Rivian R1S Quad Max (20in AT)'s EPA-rated 325-mile range takes about 162.8 kWh, which costs about $28.89 at Delaware's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Rivian R1S Quad Max (20in AT) in Delaware, ranked

This combination ranks 16,257 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad Max (20in AT) alone ranks 392 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Delaware's 17.74¢/kWh rate ranks 33 of 51 states; the state rate guide lays out the full spread.