How Much Does It Cost to Charge a Polestar 3 at Home? $18.83

Charging a 2026 Polestar 3 costs about $18.83 for a full charge and $6.49 per 100 miles at 17¢/kWh — about $779 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 2026 Polestar 3 costs about $18.83 for a full charge (~111 kWh) at the US average rate of 17¢/kWh — roughly $6.49 per 100 miles, or $779 a year at 12,000 miles. The 3 uses 38.2 kWh/100 mi on the EPA combined cycle. The 3’s real cost scales with your own rate, from about 12¢ to over 50¢ across the US.

The Polestar 3 (EPA data for the 2026 model year, the newest the EPA lists; dollar figures use 2026 electricity rates) uses 38.2 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 3 at about $6.49 per 100 miles — 6.49¢ a mile. That lands mid-pack: 48th of the 67 current models tracked here. Nothing about the running cost of the 3 will surprise you in either direction, which for a SUV at 38.2 kWh/100 mi is a reasonable outcome.

What a 3 costs to charge at every rate

The same 3 costs $4.72 per 100 miles at Idaho’s 12.35¢ and $20.14 at Hawaii’s 52.72¢ — a 4.3× spread that is entirely the rate:

Wall-side for the 3: EPA’s 38.2 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 3’s 6.49¢ 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 3’s math in full — both formulas, and the electricity rate at which the advantage disappears.

Range: what a “full charge” of the 3 really means

EPA combined range is about 290 miles. Multiplying that by the car’s efficiency gives roughly 111 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 3 on a public fast charger

On a public fast charger at about 48¢/kWh the 3 costs $18.34 per 100 miles against $6.49 at home — 2.8× — or roughly $2,200 a year instead of $779 if it never sees a home outlet. Why a session costs more than the posted price for a 3 (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 3’s $779 flat-rate figure.

The 3 in cold weather

A hard winter lifts the 3 from 38.2 to roughly 49.7 kWh/100 mi (the middle of the 20–40% rise real-world data shows), so $8.44 per 100 miles instead of $6.49 and an effective range nearer 223 miles than 290. The mechanics behind the 3’s winter penalty — cabin heat, battery chemistry, preconditioning from the wall — are on the hub ; the 3’s $779 annual figure above already averages the seasons.

Where the 3 sits against other EVs

Its nearest neighbors on efficiency are the Hyundai Ioniq 6 (37.9 kWh/100 mi) and the Hyundai Ioniq 9 (38.3 kWh/100 mi). The 3 at 38.2 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 3 is the fixed requirement, the cheapest SUV to run tracked here is the Tesla Model Y at $549 a year — $231 less than the 3.

Trims: does the 3 version you pick change the bill?

The EPA rates 5 configurations of the 2026 3, and they are not close: 34.7 kWh/100 mi for the most efficient, 41.5 for the least, a 20% spread. At 12,000 miles that is about $139 a year between the cheapest and most expensive version of the same 3. 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 Polestar range

The 3 at 38.2 kWh/100 mi sits among 3 Polestar EVs tracked here, running from 33.2 (2) to 39.7 (4). Also on this site: Polestar 2 , Polestar 4 .

The tax question for the 3, answered plainly

Nothing about the 3 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 3 on running cost and body style: Hyundai Ioniq 6 (37.9 kWh/100 mi), Hyundai Ioniq 9 (38.3 kWh/100 mi), Acura ZDX (38.4 kWh/100 mi).

Put the 3’s $779 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 3 in the Supercharger vs home calculator . All 67 EVs . The 3 is only one line on the household bill — the 40-appliance running-cost ranking shows where $779 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 3: 38.2 kWh/100 mi ÷ 100 × 17¢ = $6.49 per 100 miles; 290 mi × 38.2 ÷ 100 = 111 kWh, × $0.17 = $18.83 per full charge; $6.49 × 12,000 ÷ 100 = $779 a year. The 3’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 Hyundai Ioniq 9 — 38.3 kWh/100 mi against the 3’s 38.2 — $6.51 vs $6.49 per 100 miles at 17¢.
• Cost to charge a Acura ZDX — 38.4 kWh/100 mi against the 3’s 38.2 — $6.53 vs $6.49 per 100 miles at 17¢.
• Cost to charge a Hyundai Ioniq 6 — 37.9 kWh/100 mi against the 3’s 38.2 — $6.44 vs $6.49 per 100 miles at 17¢.
• Cost to charge an EV: all 67 models ranked — Where the 3’s $779 a year sits among 67 EVs, plus the fast-charging, cold-weather and tax explainers.
• EV vs gas cost calculator — The 3’s 38.2 kWh/100 mi against your gas car’s mpg and your local pump price.