Charging a 2026 Rivian R1S All-Terrain Dual Max (20in) at home in Delaware

A 2026 Rivian R1S All-Terrain Dual Max (20in) draws 43.2 kWh per 100 miles per the EPA; at Delaware's 17.74¢/kWh residential rate that's $7.67 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 52.1% cheaper per mile than gasoline in Delaware — charging at home is much cheaper than gas here.

What a year of driving costs

Delaware owners putting 15,000 annual miles on a 2026 Rivian R1S All-Terrain Dual Max (20in) spend about $1,150 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,253 saved annually, at this mileage.

Cost of a full charge

At Delaware's rate, fully covering this 2026 Rivian R1S All-Terrain Dual Max (20in)'s 370-mile EPA range costs about $28.37 (159.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S All-Terrain Dual Max (20in) in Delaware, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S All-Terrain Dual Max (20in) in Delaware ranks 14,510 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S All-Terrain Dual Max (20in) ranks 333 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.

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

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Max (20in)'s cost in Delaware. Curious how Delaware's 17.74¢/kWh compares? The guide to charging cost by state ranks every state side by side.