Cost to Run a Tankless Electric Water Heater in Connecticut
Connecticut's average residential electricity rate is 24.2¢/kWh as of July 2026 — the 41st cheapest in the country, 32% above the U.S. average. At typical usage (0.7 hours/day), a tankless electric water heater here costs $92.70 per month.
Per hour
$4.36
at 13,000–27,000 W
Per day
$3.05
0.7 hours/day
Per month
$92.70
383 kWh
Per year
$1,113
4,599 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (0.5 hrs/day) | $1.52 | $46.35 | $556 |
| Typical (0.7 hrs/day) | $3.05 | $92.70 | $1,113 |
| Heavy (1.4 hrs/day) | $6.10 | $185 | $2,226 |
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 24.2¢/kWh (July 2026), a tankless electric water heater with typical usage costs about $3.05 per day, $92.70 per month, or $1,113 per year.
Is running a tankless electric water heater in Connecticut more expensive than average?
Yes. Connecticut's electricity costs about 32% more than the U.S. average, so the same usage costs $92.70 per month here versus $70.10 nationally.
What does electricity cost in Connecticut right now?
Connecticut residents pay an average of 24.2¢ per kWh as of July 2026 — the 41st cheapest rate of the 51 U.S. jurisdictions we track.