2026 Rivian R1S All-Terrain Performance Dual Large (20in): home charging cost in Maryland

At Maryland's residential electricity rate of 21.27¢/kWh, a 2026 Rivian R1S All-Terrain Performance Dual Large (20in) (rated 44.4 kWh per 100 miles by the EPA) costs $9.44 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: 41.1% 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 All-Terrain Performance Dual Large (20in) charged at home in Maryland costs about $1,415/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $988 a year.

What one full charge costs

A 2026 Rivian R1S All-Terrain Performance Dual Large (20in) needs roughly 128.2 kWh to reach its EPA-rated 289-mile range, which runs about $27.27 at 21.27¢/kWh in Maryland.

Where this ranks

This combination ranks 16,884 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Performance Dual Large (20in) alone ranks 345 of 400 models for efficiency; Maryland alone ranks 39 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 Maryland before deciding.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Performance Dual Large (20in)'s cost in Maryland. Curious how Maryland's 21.27¢/kWh compares? The guide to charging cost by state ranks every state side by side.