Cost to Run a Tankless Electric Water Heater in Connecticut
Connecticut's average residential electricity rate is 32.2¢/kWh as of April 2026 — the 49th cheapest in the country, 71% above the U.S. average. At typical usage (0.7 hours/day), a tankless electric water heater here costs $123 per month.
Per hour
$5.80
at 13,000–27,000 W
Per day
$4.06
0.7 hours/day
Per month
$123
383 kWh
Per year
$1,481
4,599 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (0.5 hrs/day) | $2.03 | $61.67 | $740 |
| Typical (0.7 hrs/day) | $4.06 | $123 | $1,481 |
| Heavy (1.4 hrs/day) | $8.11 | $247 | $2,962 |
Connecticut vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a tankless electric water heater in Connecticut?
At Connecticut's current average residential rate of 32.2¢/kWh (April 2026), a tankless electric water heater with typical usage costs about $4.06 per day, $123 per month, or $1,481 per year.
Is running a tankless electric water heater in Connecticut more expensive than average?
Yes. Connecticut's electricity costs about 71% more than the U.S. average, so the same usage costs $123 per month here versus $72.01 nationally.
What does electricity cost in Connecticut right now?
Connecticut residents pay an average of 32.2¢ per kWh as of April 2026 — the 49th cheapest rate of the 51 U.S. jurisdictions we track.