What it costs to charge a 2026 Rivian R1S Quad Max (20in AT) in Tennessee

At Tennessee's residential electricity rate of 13.9¢/kWh, a 2026 Rivian R1S Quad Max (20in AT) (rated 50.1 kWh per 100 miles by the EPA) costs $6.96 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. That works out to 56.5% cheaper per mile than gasoline in Tennessee — charging at home is much cheaper than gas here.

2026 Rivian R1S Quad Max (20in AT): yearly cost in Tennessee

Home charging this 2026 Rivian R1S Quad Max (20in AT) in Tennessee runs about $1,045 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,358 saved annually, at this mileage.

Filling up the 2026 Rivian R1S Quad Max (20in AT), in dollars

$22.63 — that's what Tennessee's 13.9¢/kWh rate puts on the 162.8 kWh a 2026 Rivian R1S Quad Max (20in AT) needs for its full 325-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Quad Max (20in AT) in Tennessee ranks 12,999 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Quad Max (20in AT) ranks 392 of 400 EV models for raw efficiency, and Tennessee ranks 13 of 51 for cheapest residential electricity.

Getting set up to charge a 2026 Rivian R1S Quad Max (20in AT) at home

Everything above is the per-mile and per-year cost once a home charger exists — getting one installed is a separate electrical job whose price depends on your panel and wiring, not the state average used here.

Line up a few Tennessee electrician quotes for Level 2 install before you commit either way.

More on how this number was built

See the methodology guide for exactly which EIA and EPA figures feed 2026 Rivian R1S Quad Max (20in AT)'s cost in Tennessee. Tennessee's 13.9¢/kWh rate ranks 13 of 51 states; the state rate guide lays out the full spread.