What it costs to charge a 2027 Cadillac LYRIQ 19kW Charger in Montana

At Montana's residential electricity rate of 13.77¢/kWh, a 2027 Cadillac LYRIQ 19kW Charger (rated 36.8 kWh per 100 miles by the EPA) costs $5.07 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. That works out to 68.4% cheaper per mile than gasoline in Montana — charging at home costs a fraction of what gas would here.

What a year of driving costs

Home charging this 2027 Cadillac LYRIQ 19kW Charger in Montana runs about $761 over fueleconomy.gov's default 15,000 annual miles, versus about $2,403 for the gasoline equivalent. Call it about $1,642 saved annually, at this mileage.

Cost of a full charge

$16.53 — that's what Montana's 13.77¢/kWh rate puts on the 120 kWh a 2027 Cadillac LYRIQ 19kW Charger needs for its full 326-mile EPA range.

How this compares nationally

Among all 20,400 state-and-model combinations this site tracks, charging a 2027 Cadillac LYRIQ 19kW Charger in Montana ranks 4,812 for cost savings versus gas — 1 being the best deal nationally. Separately, the Cadillac LYRIQ 19kW Charger ranks 188 of 400 EV models for raw efficiency, and Montana ranks 10 of 51 for cheapest residential electricity.

Getting set up to charge a 2027 Cadillac LYRIQ 19kW Charger at home

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.

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

More on how this number was built

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 13.77¢/kWh, Montana sits in the middle of the national range — the guide to why charging cost varies by state shows where.