EV Charging Cost in Connecticut: 30.47¢ per kWh
▲ 59% above US averageLatest EIA data: March 2026 Published May 24, 2026 Source: U.S. Energy Information Administration
Connecticut Electricity Price Trend (24 Months)
Charging Cost by Battery Size in Connecticut
| Battery | Example EV | Est. range | Full charge (0–100%) |
|---|---|---|---|
| 40 kWh | Nissan Leaf | 140 mi | $12.19 |
| 60 kWh | Typical EV | 210 mi | $18.28 |
| 80 kWh | Tesla Model 3 LR | 280 mi | $24.38 |
| 100 kWh | Tesla Model S | 350 mi | $30.47 |
Estimated range and charge cost assume 3.5 mi/kWh efficiency at Connecticut's 30.47¢/kWh residential rate. *Annual savings assumes 1,000 miles/month vs a 25 MPG gas car at $3.50/gallon.
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Frequently Asked Questions
How much does electricity cost in Connecticut?
Residential electricity in Connecticut costs 30.47¢/kWh as of March 2026, according to the U.S. Energy Information Administration. That is 59% above the US average of 19.16¢/kWh, ranking Connecticut the 4th most expensive of all 50 states and DC.
How much does it cost to charge an EV in Connecticut?
At 30.47¢/kWh, a full 0–100% charge costs about $12.19 for a 40 kWh battery, $18.28 for a typical 60 kWh EV, and $30.47 for a 100 kWh battery. That works out to roughly 8.7¢ per mile of driving.
Is it cheaper to drive an EV than a gas car in Connecticut?
Yes. Driving 1,000 miles a month on electricity in Connecticut costs about $1,045 a year, versus roughly $1,680 for a 25 MPG gas car at $3.50/gallon — an annual saving of about $635.
Electricity price from the U.S. Energy Information Administration (Form EIA-861), March 2026.