Cost to Charge a Hyundai Ioniq 9 in Connecticut
$29.57 for a full charge at 24.32¢/kWh — $9.24 per 100 miles, about $1,109 a year.
Hyundai Ioniq 9 in Connecticut
- Per 100 miles
- $9.24
- Per mile
- $0.09
- Per year
- $1,109
- vs petrol / yr
- $525
- Electricity per year
- Petrol per year
The full picture
| Item | Energy | Cost |
|---|---|---|
| This charge | 121.6 kWh | $29.57 |
| Full charge (0–100%) | 121.6 kWh | $29.57 |
| Per 100 miles | 38.0 kWh | $9.24 |
| Per year (12,000 mi) | 4560.0 kWh | $1,109 |
| Same year on petrol (30 mpg) | — | $1,634 |
| Difference | — | $525 |
What charging actually costs here
Filling a Hyundai Ioniq 9 from empty in Connecticut costs $29.57. The car draws 121.6 kWh from the wall for a full 320-mile charge, and Connecticut residential electricity averages 24.32¢ per kWh. That works out at $9.24 per 100 miles, or $0.09 a mile.
Connecticut is more expensive than average: 24.32¢ against a national mean of 19.42¢, which ranks it 40 of 51 for electricity price. The same car costs $15.94 to fill in Nevada and $64.11 in Hawaii — a 4.0× spread across the country for identical driving.
Against a petrol car doing 30 mpg at $4.09 a gallon, electricity here is 1.5× cheaper per mile: $9.24 versus $13.62 per 100 miles. Over 12,000 miles a year that is $525 saved.
Similar EVs in Connecticut
| Vehicle | Per 100 mi | Full charge | Per year |
|---|---|---|---|
| Acura ZDX | 37.7 kWh | $29.61 | $1,100 |
| Polestar 3 | 37.5 kWh | $28.45 | $1,094 |
| Ford Mustang Mach-E | 37.4 kWh | $25.47 | $1,091 |
| Genesis Electrified GV70 | 37.3 kWh | $22.68 | $1,089 |
| Porsche Taycan | 39 kWh | $27.79 | $1,138 |
| Cadillac Lyriq | 36.8 kWh | $29.18 | $1,074 |
The same car in nearby-priced states
| State | ¢/kWh | Full charge | Per year |
|---|---|---|---|
| Pennsylvania | 21.73 | $26.42 | $991 |
| Maryland | 21.84 | $26.56 | $996 |
| Michigan | 22.99 | $27.96 | $1,048 |
| District of Columbia | 24.39 | $29.66 | $1,112 |
| Vermont | 24.44 | $29.72 | $1,114 |
| New Jersey | 24.95 | $30.34 | $1,138 |
Frequently asked questions
How much does it cost to charge a Hyundai Ioniq 9 in Connecticut?
How much does a Hyundai Ioniq 9 cost per mile in Connecticut?
Is charging a Hyundai Ioniq 9 cheaper than petrol in Connecticut?
How long does a full charge last?
Does this include charging losses?
Vehicle data: EPA fueleconomy.gov, model years 2025-2027. Electricity: EIA Electric Power Monthly Table 5.6.A, residential, June 2026. Petrol: EIA weekly retail gasoline price, 24 August 2026.
Estimates for informational purposes only. Real charging cost depends on your tariff, time of use, charger efficiency, temperature, driving style and state of charge. EPA figures are a standardised test result, not a promise about your car.