Cost to Run a Grow Light in North Carolina
North Carolina's average residential electricity rate is 15.1¢/kWh as of May 2026 — the 18th cheapest in the country, 18% below the U.S. average. At typical usage (14 hours/day), a grow light here costs $19.28 per month.
Per hour
4.5¢
at 100–650 W
Per day
$0.63
14 hours/day
Per month
$19.28
128 kWh
Per year
$231
1,533 kWh
By usage level in North Carolina
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.32 | $9.64 | $116 |
| Typical (14 hrs/day) | $0.63 | $19.28 | $231 |
| Heavy (24 hrs/day) | $1.27 | $38.56 | $463 |
North Carolina 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 North Carolina?
At North Carolina's current average residential rate of 15.1¢/kWh (May 2026), a grow light with typical usage costs about $0.63 per day, $19.28 per month, or $231 per year.
Is running a grow light in North Carolina more expensive than average?
No — it's cheaper. North Carolina's rate is about 18% below the U.S. average: $19.28 per month here versus $23.49 nationally.
What does electricity cost in North Carolina right now?
North Carolina residents pay an average of 15.1¢ per kWh as of May 2026 — the 18th cheapest rate of the 51 U.S. jurisdictions we track.