2026 Rivian R1S Quad Max (22in): home charging cost in Texas

At Texas's residential electricity rate of 16.11¢/kWh, a 2026 Rivian R1S Quad Max (22in) (rated 44.4 kWh per 100 miles by the EPA) costs $7.15 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: 55.4% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1S Quad Max (22in) charged at home in Texas costs about $1,072/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,331 a year.

What one full charge costs

A 2026 Rivian R1S Quad Max (22in) needs roughly 166 kWh to reach its EPA-rated 374-mile range, which runs about $26.73 at 16.11¢/kWh in Texas.

How this compares nationally

This combination ranks 13,418 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Quad Max (22in) alone ranks 350 of 400 models for efficiency; Texas alone ranks 28 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.

Ask a licensed Texas 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 Quad Max (22in)'s cost in Texas. At 16.11¢/kWh, Texas sits in the middle of the national range — the guide to why charging cost varies by state shows where.