2027 Rivian R1S Performance (22in): home charging cost in Wisconsin

A 2027 Rivian R1S Performance (22in) draws 44.6 kWh per 100 miles per the EPA; at Wisconsin's 18.99¢/kWh residential rate that's $8.46 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home is much cheaper than gas here: 47.2% 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 Performance (22in) charged at home in Wisconsin costs about $1,270/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,133 a year.

What one full charge costs

A 2027 Rivian R1S Performance (22in) needs roughly 165.4 kWh to reach its EPA-rated 371-mile range, which runs about $31.4 at 18.99¢/kWh in Wisconsin.

Where this ranks

This combination ranks 15,740 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance (22in) alone ranks 354 of 400 models for efficiency; Wisconsin alone ranks 35 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.

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

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 18.99¢/kWh, Wisconsin sits in the middle of the national range — the guide to why charging cost varies by state shows where.