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

In Delaware, home electricity runs 17.74¢/kWh — put a 2026 Rivian R1S Performance Dual Large Plus (20in)'s EPA-rated 43.1 kWh/100mi against that and 100 miles costs $7.65, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 52.2% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S Performance Dual Large Plus (20in) charged at home in Delaware costs about $1,148/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,255 a year.

What one full charge costs

A 2026 Rivian R1S Performance Dual Large Plus (20in) needs roughly 136.7 kWh to reach its EPA-rated 317-mile range, which runs about $24.25 at 17.74¢/kWh in Delaware.

2026 Rivian R1S Performance Dual Large Plus (20in) in Delaware, ranked

This combination ranks 14,476 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance Dual Large Plus (20in) alone ranks 328 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.

Line up a few Delaware 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. At 17.74¢/kWh, Delaware sits in the middle of the national range — the guide to why charging cost varies by state shows where.