Cost to Run a Grow Light in Mississippi
Mississippi's average residential electricity rate is 14.5¢/kWh as of July 2026 — the 12th cheapest in the country, 21% below the U.S. average. At typical usage (14 hours/day), a grow light here costs $18.51 per month.
Per hour
4.3¢
at 100–650 W
Per day
$0.61
14 hours/day
Per month
$18.51
128 kWh
Per year
$222
1,533 kWh
By usage level in Mississippi
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.30 | $9.26 | $111 |
| Typical (14 hrs/day) | $0.61 | $18.51 | $222 |
| Heavy (24 hrs/day) | $1.22 | $37.03 | $445 |
Mississippi 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 Mississippi?
At Mississippi's current average residential rate of 14.5¢/kWh (July 2026), a grow light with typical usage costs about $0.61 per day, $18.51 per month, or $222 per year.
Is running a grow light in Mississippi more expensive than average?
No — it's cheaper. Mississippi's rate is about 21% below the U.S. average: $18.51 per month here versus $23.37 nationally.
What does electricity cost in Mississippi right now?
Mississippi residents pay an average of 14.5¢ per kWh as of July 2026 — the 12th cheapest rate of the 51 U.S. jurisdictions we track.