Charging a 2026 Rivian R1S Performance Dual Large Plus (20in) at home in Tennessee

A 2026 Rivian R1S Performance Dual Large Plus (20in) draws 43.1 kWh per 100 miles per the EPA; at Tennessee's 13.9¢/kWh residential rate that's $5.99 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 62.6% cheaper per mile than gasoline in Tennessee — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Tennessee owners putting 15,000 annual miles on a 2026 Rivian R1S Performance Dual Large Plus (20in) spend about $899 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,504 saved annually, at this mileage.

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

At Tennessee's rate, fully covering this 2026 Rivian R1S Performance Dual Large Plus (20in)'s 317-mile EPA range costs about $19 (136.7 kWh) — the energy the EPA test actually used, not the battery's rated size.

2026 Rivian R1S Performance Dual Large Plus (20in) in Tennessee, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Performance Dual Large Plus (20in) in Tennessee ranks 9,425 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Performance Dual Large Plus (20in) ranks 328 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 Performance Dual Large Plus (20in) 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

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Curious how Tennessee's 13.9¢/kWh compares? The guide to charging cost by state ranks every state side by side.