2027 Rivian R1S Premium (20in): home charging cost in Kentucky

In Kentucky, home electricity runs 14.37¢/kWh — put a 2027 Rivian R1S Premium (20in)'s EPA-rated 42.9 kWh/100mi against that and 100 miles costs $6.16, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 61.5% 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 2027 Rivian R1S Premium (20in) charged at home in Kentucky costs about $924/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,479 a year.

Cost of a full charge

A 2027 Rivian R1S Premium (20in) needs roughly 128.6 kWh to reach its EPA-rated 300-mile range, which runs about $18.48 at 14.37¢/kWh in Kentucky.

How this compares nationally

This combination ranks 10,185 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium (20in) alone ranks 314 of 400 models for efficiency; Kentucky alone ranks 16 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.

Get quotes from local electricians for Level 2 charger installation in Kentucky before deciding.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 14.37¢/kWh, Kentucky sits in the middle of the national range — the guide to why charging cost varies by state shows where.