Michigan home charging cost for the 2027 Rivian R1S Premium (20in AT)

In Michigan, home electricity runs 21.14¢/kWh — put a 2027 Rivian R1S Premium (20in AT)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $9.38, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 41.5% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Rivian R1S Premium (20in AT) costs roughly $1,407 a year to charge at home in Michigan, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $996 a year.

What one full charge costs

Covering the 2027 Rivian R1S Premium (20in AT)'s EPA-rated 289-mile range takes about 128.2 kWh, which costs about $27.1 at Michigan's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2027 Rivian R1S Premium (20in AT) in Michigan, ranked

This combination ranks 16,807 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1S Premium (20in AT) alone ranks 342 of 400 models for efficiency; Michigan alone ranks 38 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.

Line up a few Michigan electrician quotes for Level 2 install before you commit either way.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. At 21.14¢/kWh, Michigan sits in the middle of the national range — the guide to why charging cost varies by state shows where.