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

A 2026 Rivian R1S All-Terrain Dual Large Plus (20in) draws 46.9 kWh per 100 miles per the EPA; at Maryland's 21.27¢/kWh residential rate that's $9.97 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is cheaper than gas here: 37.7% 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 All-Terrain Dual Large Plus (20in) charged at home in Maryland costs about $1,496/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $907 a year.

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

A 2026 Rivian R1S All-Terrain Dual Large Plus (20in) needs roughly 136.9 kWh to reach its EPA-rated 292-mile range, which runs about $29.12 at 21.27¢/kWh in Maryland.

Where this ranks

This combination ranks 17,397 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S All-Terrain Dual Large Plus (20in) alone ranks 365 of 400 models for efficiency; Maryland alone ranks 39 of 51 states for electricity price.

Before you install a home charger in Maryland

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.

Ask a licensed Maryland electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S All-Terrain Dual Large Plus (20in)'s cost in Maryland. Maryland's 21.27¢/kWh rate ranks 39 of 51 states; the state rate guide lays out the full spread.