Cost to Run a Grow Light in Maine
Maine's average residential electricity rate is 32.4¢/kWh as of July 2026 — the 49th cheapest in the country, 77% above the U.S. average. At typical usage (14 hours/day), a grow light here costs $41.37 per month.
Per hour
$0.10
at 100–650 W
Per day
$1.36
14 hours/day
Per month
$41.37
128 kWh
Per year
$497
1,533 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.68 | $20.68 | $248 |
| Typical (14 hrs/day) | $1.36 | $41.37 | $497 |
| Heavy (24 hrs/day) | $2.72 | $82.74 | $993 |
Maine 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 Maine?
At Maine's current average residential rate of 32.4¢/kWh (July 2026), a grow light with typical usage costs about $1.36 per day, $41.37 per month, or $497 per year.
Is running a grow light in Maine more expensive than average?
Yes. Maine's electricity costs about 77% more than the U.S. average, so the same usage costs $41.37 per month here versus $23.37 nationally.
What does electricity cost in Maine right now?
Maine residents pay an average of 32.4¢ per kWh as of July 2026 — the 49th cheapest rate of the 51 U.S. jurisdictions we track.