Montana home charging cost for the 2026 Cadillac OPTIQ RWD (11 kW Charger)

A 2026 Cadillac OPTIQ RWD (11 kW Charger) draws 32.1 kWh per 100 miles per the EPA; at Montana's 13.77¢/kWh residential rate that's $4.42 per 100 miles charged at home, versus $16.02 for a 25.5-mpg gas car covering the same distance. Charging at home costs a fraction of what gas would here: 72.4% less than gas per mile, here specifically.

2026 Cadillac OPTIQ RWD (11 kW Charger): yearly cost in Montana

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Cadillac OPTIQ RWD (11 kW Charger) costs roughly $663 a year to charge at home in Montana, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,740 a year.

What one full charge costs

Covering the 2026 Cadillac OPTIQ RWD (11 kW Charger)'s EPA-rated 317-mile range takes about 101.7 kWh, which costs about $14 at Montana's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2026 Cadillac OPTIQ RWD (11 kW Charger) in Montana, ranked

This combination ranks 2,132 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Cadillac OPTIQ RWD (11 kW Charger) alone ranks 90 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Getting set up to charge a 2026 Cadillac OPTIQ RWD (11 kW Charger) at home

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 Montana electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Cadillac OPTIQ RWD (11 kW Charger)'s cost in Montana. Curious how Montana's 13.77¢/kWh compares? The guide to charging cost by state ranks every state side by side.