2027 Rivian R1S Performance (20in AT): home charging cost in Wisconsin
At Wisconsin's residential electricity rate of 18.99¢/kWh, a 2027 Rivian R1S Performance (20in AT) (rated 49.8 kWh per 100 miles by the EPA) costs $9.46 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. Charging at home is much cheaper than gas here: 40.9% less than gas per mile, here specifically.
2027 Rivian R1S Performance (20in AT): yearly cost in Wisconsin
Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 Rivian R1S Performance (20in AT) charged at home in Wisconsin costs about $1,420/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $983 a year.
Filling up the 2027 Rivian R1S Performance (20in AT), in dollars
A 2027 Rivian R1S Performance (20in AT) needs roughly 164 kWh to reach its EPA-rated 329-mile range, which runs about $31.14 at 18.99¢/kWh in Wisconsin.
How this compares nationally
This combination ranks 16,937 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Performance (20in AT) alone ranks 386 of 400 models for efficiency; Wisconsin alone ranks 35 of 51 states for electricity price.
Before you install a home charger in Wisconsin
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.
Line up a few Wisconsin electrician quotes for Level 2 install before you commit either way.
Where these figures come from
See the methodology guide for exactly which EIA and EPA figures feed 2027 Rivian R1S Performance (20in AT)'s cost in Wisconsin. Wisconsin's 18.99¢/kWh rate ranks 35 of 51 states; the state rate guide lays out the full spread.