How Much Does It Cost to Charge a Subaru Solterra at Home? $13.66

Charging a 2027 Subaru Solterra costs about $13.66 for a full charge and $4.83 per 100 miles at 17¢/kWh — about $579 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 Subaru Solterra costs about $13.66 for a full charge (~80 kWh) at the US average rate of 17¢/kWh — roughly $4.83 per 100 miles, or $579 a year at 12,000 miles. The Solterra uses 28.4 kWh/100 mi on the EPA combined cycle. The Solterra’s real cost scales with your own rate, from about 12¢ to over 50¢ across the US.

The Subaru Solterra (EPA data for the 2027 model year, the newest the EPA lists; dollar figures use 2026 electricity rates) uses 28.4 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 Solterra at about $4.83 per 100 miles — 4.83¢ a mile. That puts it among the most efficient EVs on sale: 6 out of the 67 current models tracked here, ordered from least to most energy used. Efficiency at this level is what makes an EV genuinely cheap to run rather than merely cheaper than gasoline.

What a Solterra costs to charge at every rate

The same Solterra costs $3.51 per 100 miles at Idaho’s 12.35¢ and $14.97 at Hawaii’s 52.72¢ — a 4.3× spread that is entirely the rate:

Wall-side for the Solterra: EPA’s 28.4 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 Solterra’s 4.83¢ 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 Solterra’s math in full — both formulas, and the electricity rate at which the advantage disappears.

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

EPA combined range is about 283 miles. Multiplying that by the car’s efficiency gives roughly 80 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 Solterra on a public fast charger

On a public fast charger at about 48¢/kWh the Solterra costs $13.63 per 100 miles against $4.83 at home — 2.8× — or roughly $1,636 a year instead of $579 if it never sees a home outlet. Why a session costs more than the posted price for a Solterra (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 Solterra’s $579 flat-rate figure.

The Solterra in cold weather

A hard winter lifts the Solterra from 28.4 to roughly 36.9 kWh/100 mi (the middle of the 20–40% rise real-world data shows), so $6.28 per 100 miles instead of $4.83 and an effective range nearer 218 miles than 283. The mechanics behind the Solterra’s winter penalty — cabin heat, battery chemistry, preconditioning from the wall — are on the hub ; the Solterra’s $579 annual figure above already averages the seasons.

Where the Solterra sits against other EVs

Its nearest neighbors on efficiency are the Chevrolet Bolt EV (28.2 kWh/100 mi) and the Mercedes-Benz CLA (29.0 kWh/100 mi). The Solterra at 28.4 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 Solterra is the fixed requirement, the cheapest SUV to run tracked here is the Tesla Model Y at $549 a year.

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

The EPA rates 2 configurations of the 2027 Solterra, from 28.0 to 28.9 kWh/100 mi. That is a narrow band — about $18 a year between the best and worst at 12,000 miles — so pick the trim you want and don’t agonise over the running cost.

The tax question for the Solterra, answered plainly

Nothing about the Solterra 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 Solterra on running cost and body style: Chevrolet Bolt EV (28.2 kWh/100 mi), Mercedes-Benz CLA (29.0 kWh/100 mi), Toyota bZ (27.8 kWh/100 mi), Toyota C-HR (29.3 kWh/100 mi).

Put the Solterra’s $579 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 Solterra in the Supercharger vs home calculator . All 67 EVs . The Solterra is only one line on the household bill — the 40-appliance running-cost ranking shows where $579 a year of charging lands next to everyday loads like a electric oven or a washing machine .

Frequently asked questions

How we calculated this

Worked for the Solterra: 28.4 kWh/100 mi ÷ 100 × 17¢ = $4.83 per 100 miles; 283 mi × 28.4 ÷ 100 = 80 kWh, × $0.17 = $13.66 per full charge; $4.83 × 12,000 ÷ 100 = $579 a year. The Solterra’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 Chevrolet Bolt EV — 28.2 kWh/100 mi against the Solterra’s 28.4 — $4.79 vs $4.83 per 100 miles at 17¢.
• Cost to charge a Toyota bZ — 27.8 kWh/100 mi against the Solterra’s 28.4 — $4.73 vs $4.83 per 100 miles at 17¢.
• Cost to charge a Mercedes-Benz CLA — 29.0 kWh/100 mi against the Solterra’s 28.4 — $4.93 vs $4.83 per 100 miles at 17¢.
• Cost to charge an EV: all 67 models ranked — Where the Solterra’s $579 a year sits among 67 EVs, plus the fast-charging, cold-weather and tax explainers.
• EV vs gas cost calculator — The Solterra’s 28.4 kWh/100 mi against your gas car’s mpg and your local pump price.