Cost to Run a Grow Light in Delaware
Delaware's average residential electricity rate is 19.4¢/kWh as of May 2026 — the 33rd cheapest in the country, 5% above the U.S. average. At typical usage (14 hours/day), a grow light here costs $24.77 per month.
Per hour
5.8¢
at 100–650 W
Per day
$0.81
14 hours/day
Per month
$24.77
128 kWh
Per year
$297
1,533 kWh
By usage level in Delaware
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.41 | $12.38 | $149 |
| Typical (14 hrs/day) | $0.81 | $24.77 | $297 |
| Heavy (24 hrs/day) | $1.63 | $49.54 | $595 |
Delaware 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 Delaware?
At Delaware's current average residential rate of 19.4¢/kWh (May 2026), a grow light with typical usage costs about $0.81 per day, $24.77 per month, or $297 per year.
Is running a grow light in Delaware more expensive than average?
Yes. Delaware's electricity costs about 5% more than the U.S. average, so the same usage costs $24.77 per month here versus $23.49 nationally.
What does electricity cost in Delaware right now?
Delaware residents pay an average of 19.4¢ per kWh as of May 2026 — the 33rd cheapest rate of the 51 U.S. jurisdictions we track.