Charging a 2027 Rivian R1S Premium Long Range (20in AT) at home in Tennessee

At Tennessee's residential electricity rate of 13.9¢/kWh, a 2027 Rivian R1S Premium Long Range (20in AT) (rated 43.2 kWh per 100 miles by the EPA) costs $6.01 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 62.5% cheaper per mile than gasoline in Tennessee — charging at home is much cheaper than gas here.

2027 Rivian R1S Premium Long Range (20in AT): yearly cost in Tennessee

Tennessee owners putting 15,000 annual miles on a 2027 Rivian R1S Premium Long Range (20in AT) spend about $901 on home electricity, compared to about $2,403 a gas-car equivalent would spend on fuel. Call it about $1,502 saved annually, at this mileage.

What one full charge costs

At Tennessee's rate, fully covering this 2027 Rivian R1S Premium Long Range (20in AT)'s 370-mile EPA range costs about $22.23 (159.9 kWh) — the energy the EPA test actually used, not the battery's rated size.

2027 Rivian R1S Premium Long Range (20in AT) in Tennessee, ranked

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Rivian R1S Premium Long Range (20in AT) in Tennessee ranks 9,494 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Premium Long Range (20in AT) ranks 331 of 400 EV models for raw efficiency, and Tennessee ranks 13 of 51 for cheapest residential electricity.

Next step: home charger installation

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.