Cost to Run a Grow Light in Connecticut
Connecticut's average residential electricity rate is 27.4¢/kWh as of May 2026 — the 44th cheapest in the country, 49% above the U.S. average. At typical usage (14 hours/day), a grow light here costs $34.98 per month.
Per hour
8.2¢
at 100–650 W
Per day
$1.15
14 hours/day
Per month
$34.98
128 kWh
Per year
$420
1,533 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.58 | $17.49 | $210 |
| Typical (14 hrs/day) | $1.15 | $34.98 | $420 |
| Heavy (24 hrs/day) | $2.30 | $69.97 | $840 |
Connecticut vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a grow light in Connecticut?
At Connecticut's current average residential rate of 27.4¢/kWh (May 2026), a grow light with typical usage costs about $1.15 per day, $34.98 per month, or $420 per year.
Is running a grow light in Connecticut more expensive than average?
Yes. Connecticut's electricity costs about 49% more than the U.S. average, so the same usage costs $34.98 per month here versus $23.49 nationally.
What does electricity cost in Connecticut right now?
Connecticut residents pay an average of 27.4¢ per kWh as of May 2026 — the 44th cheapest rate of the 51 U.S. jurisdictions we track.