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

At Pennsylvania's residential electricity rate of 20.9¢/kWh, a 2026 Rivian R1S Dual Large Plus (20in) (rated 43.1 kWh per 100 miles by the EPA) costs $9.01 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: 43.7% 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 Dual Large Plus (20in) charged at home in Pennsylvania costs about $1,352/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,051 a year.

Filling up the 2026 Rivian R1S Dual Large Plus (20in), in dollars

A 2026 Rivian R1S Dual Large Plus (20in) needs roughly 136.7 kWh to reach its EPA-rated 317-mile range, which runs about $28.57 at 20.9¢/kWh in Pennsylvania.

How this compares nationally

This combination ranks 16,411 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Dual Large Plus (20in) alone ranks 327 of 400 models for efficiency; Pennsylvania alone ranks 37 of 51 states for electricity price.

Next step: home charger installation

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 Pennsylvania before deciding.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Dual Large Plus (20in)'s cost in Pennsylvania. Curious how Pennsylvania's 20.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.