How much does it cost to charge a Tesla Model 3 Performance AWD at home in Connecticut?
$23.21 for a full charge
- Per 100 miles
- $7.39
- A month at 1,000 miles
- $73.93
- Per mile
- 7.4¢
- Gas at 30 mpg, same miles
- $149.33
2026 Tesla Model 3 Performance AWD, EPA 30.4 kWh per 100 miles, at Connecticut’s average rate of 24.3¢ per kWh (EIA, June 2026). Driving the full EPA range of 314 miles at 30.4 kWh per 100 miles takes about 95.5 kWh from the wall, charging losses included. How we calculate this
Electricity versus gasoline
| Tesla Model 3 Performance AWD | Gas car | Difference | |
|---|---|---|---|
| Per 100 miles | $7.39 | $14.93 | $7.54 |
| A month (1,000 mi) | $73.93 | $149.33 | $75.40 |
| A year (12,000 mi) | $887.19 | $1,792.00 | $904.81 |
Home charging beats gas for this car as long as electricity costs less than 49.1¢ per kWh. Negative differences mean the gas car is cheaper. The 30 mpg comparison car is our assumption; see the methodology.
What it costs at other monthly mileages
| Miles a month | Energy | Electricity | Gas (30 mpg) |
|---|---|---|---|
| 500 | 152 kWh | $36.97 | $74.67 |
| 750 | 228 kWh | $55.45 | $112.00 |
| 1,000 | 304 kWh | $73.93 | $149.33 |
| 1,500 | 456 kWh | $110.90 | $224.00 |
| 2,000 | 608 kWh | $147.87 | $298.67 |
Charging in Connecticut compared with other states
Connecticut’s residential rate is the 12th most expensive of 51 states and DC, 6.0¢ above the US average of 18.3¢ (+33%). Connecticut’s rate is down 2.9¢ from June 2025 (27.2¢, −10.6%).
Ways to spend less
- Ask your utility about a time-of-use or EV rate and schedule charging for off-peak hours; the car or charger can do it automatically.
- Precondition the cabin while the car is still plugged in, so heating or cooling comes from the grid instead of the battery.
- Keep tires at the pressure on the door-jamb sticker; underinflated tires raise consumption.
- Drive 100 fewer miles a month: saves $7.39 at 24.3¢ per kWh.
Questions
How much does it cost to fully charge a Tesla Model 3 Performance AWD in Connecticut?
About $23.21. Driving the full EPA range of 314 miles at 30.4 kWh per 100 miles takes about 95.5 kWh from the wall, charging losses included. at 24.3¢ per kWh.
How much does it cost to charge a Tesla Model 3 Performance AWD per month?
About $73.93 a month at 1,000 miles (24.3¢ per kWh), or $887.19 a year in Connecticut. At the EPA rating of 30.4 kWh per 100 miles, 1,000 miles take 304 kWh from the wall.
How much does it cost to charge a Tesla Model 3 Performance AWD per mile?
7.4¢ a mile, or $7.39 per 100 miles in Connecticut.
Is charging a Tesla Model 3 Performance AWD cheaper than gas?
Yes in Connecticut: $7.39 per 100 miles against $14.93 for a 30 mpg car at $4.48 a gallon (AAA, September 24, 2026). It stays cheaper as long as electricity costs less than 49.1¢ per kWh.
How many kWh does it take to charge a Tesla Model 3 Performance AWD?
Driving the full EPA range of 314 miles at 30.4 kWh per 100 miles takes about 95.5 kWh from the wall, charging losses included. Most charging sessions top up part of the battery, so a typical night uses less.
How does charging in Connecticut compare with other states?
Connecticut’s residential rate is the 12th most expensive of 51 states and DC, 6.0¢ above the US average of 18.3¢ (+33%). Connecticut’s rate is down 2.9¢ from June 2025 (27.2¢, −10.6%).
Sources
- EPA rating carrier: Performance AWD: 111 MPGe combined, 314 mi
- EPA rating carrier: Performance 315 mi, 28.5 kWh/100 mi
- U.S. EPA and DOE, fueleconomy.gov (official ratings; verify here)
- AAA, national average price of regular gasoline, September 24, 2026
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A: average price of electricity to ultimate customers, residential, June 2026 Figures transcribed from republications of this table on September 26, 2026; pending direct verification from the EIA API.
- Carrier page: June 2026 residential average price, citing EIA Electric Power Monthly Table 5.6.A
Usage assumptions (hours a day, season) are ours and listed on the methodology page. Found an error? Tell us.