How Much Does It Cost to Charge a Cadillac Optiq at Home? $17.55

Charging a 2027 Cadillac Optiq costs about $17.55 for a full charge and $5.95 per 100 miles at 17¢/kWh — about $714 a year at 12,000 miles.

Updated September 2026 · Source: EIA Electric Power Monthly Table 5.6.A (July 2026 data) · EPA fueleconomy.gov · next EIA update ~Oct 23

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Why this number

Charging a 2027 Cadillac Optiq costs about $17.55 for a full charge (~103 kWh) at the US average rate of 17¢/kWh — roughly $5.95 per 100 miles, or $714 a year at 12,000 miles. The Optiq uses 35.0 kWh/100 mi on the EPA combined cycle. The Optiq’s real cost scales with your own rate, from about 12¢ to over 50¢ across the US.

The Cadillac Optiq (EPA data for the 2027 model year, the newest the EPA lists; dollar figures use 2026 electricity rates) uses 35.0 kWh per 100 miles on the EPA combined cycle — the wall-outlet figure, so charging losses are already counted (look up your exact trim at fueleconomy.gov ). At the US average residential rate of 17¢/kWh that puts the Optiq at about $5.95 per 100 miles — 5.95¢ a mile. That lands mid-pack: 36th of the 67 current models tracked here. Nothing about the running cost of the Optiq will surprise you in either direction, which for a SUV at 35.0 kWh/100 mi is a reasonable outcome.

What an Optiq costs to charge at every rate

The same Optiq costs $4.32 per 100 miles at Idaho’s 12.35¢ and $18.45 at Hawaii’s 52.72¢ — a 4.3× spread that is entirely the rate:

Wall-side for the Optiq: EPA’s 35.0 kWh/100 mi is measured at the outlet, charger losses included; quick-fill your state above for your own figure.

That per-mile figure is the one to hold against gasoline: at 17¢/kWh the Optiq’s 5.95¢ a mile compares with about 13.6¢ for a 30-mpg gas car at $4.07 a gallon (EIA weekly, Aug 31, 2026). The EV vs gas cost guide works the Optiq’s math in full — both formulas, and the electricity rate at which the advantage disappears.

Range: what a “full charge” of the Optiq really means

EPA range across the lineup runs 250–317 miles, averaging 295. Multiplying that by the car’s efficiency gives roughly 103 kWh to refill a full range from empty, which is the honest way to think about a ‘full charge’ — battery capacity figures include a buffer you never actually use.

The Optiq on a public fast charger

On a public fast charger at about 48¢/kWh the Optiq costs $16.80 per 100 miles against $5.95 at home — 2.8× — or roughly $2,016 a year instead of $714 if it never sees a home outlet. Why a session costs more than the posted price for a Optiq (10–80% charging curve, idle fees, per-minute billing) is explained once on the cost-to-charge hub ; the EV time-of-use calculator nets an overnight rate against the Optiq’s $714 flat-rate figure.

The Optiq in cold weather

A hard winter lifts the Optiq from 35.0 to roughly 45.5 kWh/100 mi (the middle of the 20–40% rise real-world data shows), so $7.74 per 100 miles instead of $5.95 and an effective range nearer 227 miles than 295. The mechanics behind the Optiq’s winter penalty — cabin heat, battery chemistry, preconditioning from the wall — are on the hub ; the Optiq’s $714 annual figure above already averages the seasons.

Where the Optiq sits against other EVs

Its nearest neighbors on efficiency are the MINI Countryman SE (34.7 kWh/100 mi) and the Porsche Macan (35.1 kWh/100 mi). The Optiq at 35.0 kWh/100 mi sits against a set that runs from the Tesla Model Y at 26.9 kWh/100 mi, and the least efficient is the GMC Hummer EV at 67.8 — a spread that changes annual charging cost by $834 a year at 17¢/kWh and 12,000 miles. And if a SUV like the Optiq is the fixed requirement, the cheapest SUV to run tracked here is the Tesla Model Y at $549 a year — $165 less than the Optiq.

Trims: does the Optiq version you pick change the bill?

The EPA rates 6 configurations of the 2027 Optiq, and they are not close: 32.1 kWh/100 mi for the most efficient, 41.0 for the least, a 28% spread. At 12,000 miles that is about $182 a year between the cheapest and most expensive version of the same Optiq. Bigger wheels, all-wheel drive and performance tunes are usually what separates them — worth knowing before you tick the options box.

How it compares inside the Cadillac range

The Optiq at 35.0 kWh/100 mi sits among 3 Cadillac EVs tracked here, running from 35.0 (Optiq) to 39.3 (Vistiq). Also on this site: Cadillac Lyriq , Cadillac Vistiq .

The tax question for the Optiq, answered plainly

Nothing about the Optiq changes that: the rules are the same for every EV, and the full 2026 position — §30D, §25E, the ended §30C charger credit, state programs — is in the energy tax credit guide and on the cost-to-charge hub .

Related

Closest comparisons to the Optiq on running cost and body style: MINI Countryman SE (34.7 kWh/100 mi), Porsche Macan (35.1 kWh/100 mi).

Put the Optiq’s $714 a year against a gas car in the EV vs gas calculator , check your state’s rate , or price a road-trip stop for a Optiq in the Supercharger vs home calculator . All 67 EVs . The Optiq is only one line on the household bill — the 40-appliance running-cost ranking shows where $714 a year of charging lands next to everyday loads like a electric furnace or a garage heater .

Frequently asked questions

How we calculated this

Worked for the Optiq: 35.0 kWh/100 mi ÷ 100 × 17¢ = $5.95 per 100 miles; 295 mi × 35.0 ÷ 100 = 103 kWh, × $0.17 = $17.55 per full charge; $5.95 × 12,000 ÷ 100 = $714 a year. The Optiq’s gasoline comparison is 12,000 ÷ 30 mpg × $4.07 = $1,628. EPA combined ratings, measured at the wall.

Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.

Where to go next

• Cost to charge a Porsche Macan — 35.1 kWh/100 mi against the Optiq’s 35.0 — $5.97 vs $5.95 per 100 miles at 17¢.
• Cost to charge a MINI Countryman SE — 34.7 kWh/100 mi against the Optiq’s 35.0 — $5.90 vs $5.95 per 100 miles at 17¢.
• Cost to charge a Nissan Ariya — 35.4 kWh/100 mi against the Optiq’s 35.0 — $6.02 vs $5.95 per 100 miles at 17¢.
• Cost to charge an EV: all 67 models ranked — Where the Optiq’s $714 a year sits among 67 EVs, plus the fast-charging, cold-weather and tax explainers.
• EV vs gas cost calculator — The Optiq’s 35.0 kWh/100 mi against your gas car’s mpg and your local pump price.