What it costs to charge a 2026 Rivian R1S Tri Max (22in) in Kentucky

A 2026 Rivian R1S Tri Max (22in) draws 44.6 kWh per 100 miles per the EPA; at Kentucky's 14.37¢/kWh residential rate that's $6.4 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. That works out to 60% cheaper per mile than gasoline in Kentucky — charging at home is much cheaper than gas here.

Annual cost, at 15 thousands miles a year

Home charging this 2026 Rivian R1S Tri Max (22in) in Kentucky runs about $961 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,442 saved annually, at this mileage.

What one full charge costs

$23.76 — that's what Kentucky's 14.37¢/kWh rate puts on the 165.4 kWh a 2026 Rivian R1S Tri Max (22in) needs for its full 371-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2026 Rivian R1S Tri Max (22in) in Kentucky ranks 11,122 for cost savings versus gas — 1 being the best deal nationally. Separately, the Rivian R1S Tri Max (22in) ranks 356 of 400 EV models for raw efficiency, and Kentucky ranks 16 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.

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

More on how this number was built

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Kentucky's 14.37¢/kWh rate ranks 16 of 51 states; the state rate guide lays out the full spread.