Cost to Run a Grow Light in Maine
Maine's average residential electricity rate is 28.6¢/kWh as of May 2026 — the 46th cheapest in the country, 55% above the U.S. average. At typical usage (14 hours/day), a grow light here costs $36.52 per month.
Per hour
8.6¢
at 100–650 W
Per day
$1.20
14 hours/day
Per month
$36.52
128 kWh
Per year
$438
1,533 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.60 | $18.26 | $219 |
| Typical (14 hrs/day) | $1.20 | $36.52 | $438 |
| Heavy (24 hrs/day) | $2.40 | $73.03 | $877 |
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 28.6¢/kWh (May 2026), a grow light with typical usage costs about $1.20 per day, $36.52 per month, or $438 per year.
Is running a grow light in Maine more expensive than average?
Yes. Maine's electricity costs about 55% more than the U.S. average, so the same usage costs $36.52 per month here versus $23.49 nationally.
What does electricity cost in Maine right now?
Maine residents pay an average of 28.6¢ per kWh as of May 2026 — the 46th cheapest rate of the 51 U.S. jurisdictions we track.