Cost to Run a Grow Light in Massachusetts
Massachusetts's average residential electricity rate is 30.5¢/kWh as of July 2026 — the 48th cheapest in the country, 67% above the U.S. average. At typical usage (14 hours/day), a grow light here costs $38.94 per month.
Per hour
9.2¢
at 100–650 W
Per day
$1.28
14 hours/day
Per month
$38.94
128 kWh
Per year
$468
1,533 kWh
By usage level in Massachusetts
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.64 | $19.47 | $234 |
| Typical (14 hrs/day) | $1.28 | $38.94 | $468 |
| Heavy (24 hrs/day) | $2.56 | $77.88 | $935 |
Massachusetts 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 Massachusetts?
At Massachusetts's current average residential rate of 30.5¢/kWh (July 2026), a grow light with typical usage costs about $1.28 per day, $38.94 per month, or $468 per year.
Is running a grow light in Massachusetts more expensive than average?
Yes. Massachusetts's electricity costs about 67% more than the U.S. average, so the same usage costs $38.94 per month here versus $23.37 nationally.
What does electricity cost in Massachusetts right now?
Massachusetts residents pay an average of 30.5¢ per kWh as of July 2026 — the 48th cheapest rate of the 51 U.S. jurisdictions we track.