$34.58 a Full Charge: GMC Hummer EV Charging Cost at Home

Charging a 2025 GMC Hummer EV costs about $34.58 for a full charge and $11.53 per 100 miles at 17¢/kWh — about $1,383 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 2025 GMC Hummer EV costs about $34.58 for a full charge (~203 kWh) at the US average rate of 17¢/kWh — roughly $11.53 per 100 miles, or $1,383 a year at 12,000 miles. The Hummer EV uses 67.8 kWh/100 mi on the EPA combined cycle. The Hummer EV’s real cost scales with your own rate, from about 12¢ to over 50¢ across the US.

The GMC Hummer EV (EPA data for the 2025 model year, the newest the EPA lists; dollar figures use 2026 electricity rates) uses 67.8 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 Hummer EV at about $11.53 per 100 miles — 11.53¢ a mile. That is among the highest energy use of any EV sold — 67th of 67, counting up from the most efficient. Mass and aerodynamics dominate here, and the electricity bill reflects it. If running cost is your priority, this is the wrong end of the market.

What a Hummer EV costs to charge at every rate

The same Hummer EV costs $8.37 per 100 miles at Idaho’s 12.35¢ and $35.74 at Hawaii’s 52.72¢ — a 4.3× spread that is entirely the rate:

Wall-side for the Hummer EV: EPA’s 67.8 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 Hummer EV’s 11.53¢ 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 Hummer EV’s math in full — both formulas, and the electricity rate at which the advantage disappears.

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

EPA combined range is about 300 miles. Multiplying that by the car’s efficiency gives roughly 203 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 Hummer EV on a public fast charger

On a public fast charger at about 48¢/kWh the Hummer EV costs $32.54 per 100 miles against $11.53 at home — 2.8× — or roughly $3,905 a year instead of $1,383 if it never sees a home outlet. Why a session costs more than the posted price for a Hummer EV (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 Hummer EV’s $1,383 flat-rate figure.

The Hummer EV in cold weather

A hard winter lifts the Hummer EV from 67.8 to roughly 88.1 kWh/100 mi (the middle of the 20–40% rise real-world data shows), so $14.98 per 100 miles instead of $11.53 and an effective range nearer 231 miles than 300. The mechanics behind the Hummer EV’s winter penalty — cabin heat, battery chemistry, preconditioning from the wall — are on the hub ; the Hummer EV’s $1,383 annual figure above already averages the seasons.

Where the Hummer EV sits against other EVs

Its nearest neighbors on efficiency are the GMC Sierra EV (50.8 kWh/100 mi). The Hummer EV at 67.8 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 pickup like the Hummer EV is the fixed requirement, the cheapest pickup to run tracked here is the Tesla Cybertruck at $879 a year — $504 less than the Hummer EV.

Trims: does the Hummer EV version you pick change the bill?

The EPA rates 8 configurations of the 2025 Hummer EV, and they are not close: 63.9 kWh/100 mi for the most efficient, 71.7 for the least, a 12% spread. At 12,000 miles that is about $159 a year between the cheapest and most expensive version of the same Hummer EV. 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 GMC range

The Hummer EV at 67.8 kWh/100 mi sits among 2 GMC EVs tracked here, running from 50.8 (Sierra EV) to 67.8 (Hummer EV). Also on this site: GMC Sierra EV .

The tax question for the Hummer EV, answered plainly

Nothing about the Hummer EV 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 Hummer EV on running cost and body style: GMC Sierra EV (50.8 kWh/100 mi), Chevrolet Silverado EV (49.9 kWh/100 mi).

Put the Hummer EV’s $1,383 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 Hummer EV in the Supercharger vs home calculator . All 67 EVs . The Hummer EV is only one line on the household bill — the 40-appliance running-cost ranking shows where $1,383 a year of charging lands next to everyday loads like a well pump or a gaming PC .

Frequently asked questions

How we calculated this

Worked for the Hummer EV: 67.8 kWh/100 mi ÷ 100 × 17¢ = $11.53 per 100 miles; 300 mi × 67.8 ÷ 100 = 203 kWh, × $0.17 = $34.58 per full charge; $11.53 × 12,000 ÷ 100 = $1,383 a year. The Hummer EV’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 GMC Sierra EV — 50.8 kWh/100 mi against the Hummer EV’s 67.8 — $8.64 vs $11.53 per 100 miles at 17¢.
• Cost to charge a Chevrolet Silverado EV — 49.9 kWh/100 mi against the Hummer EV’s 67.8 — $8.48 vs $11.53 per 100 miles at 17¢.
• Cost to charge a Ford F-150 Lightning — 48.6 kWh/100 mi against the Hummer EV’s 67.8 — $8.26 vs $11.53 per 100 miles at 17¢.
• Cost to charge an EV: all 67 models ranked — Where the Hummer EV’s $1,383 a year sits among 67 EVs, plus the fast-charging, cold-weather and tax explainers.
• EV vs gas cost calculator — The Hummer EV’s 67.8 kWh/100 mi against your gas car’s mpg and your local pump price.