Cost to Run a Grow Light in Colorado
Colorado's average residential electricity rate is 17¢/kWh as of July 2026 — the 30th cheapest in the country, 7% below the U.S. average. At typical usage (14 hours/day), a grow light here costs $21.71 per month.
Per hour
5.1¢
at 100–650 W
Per day
$0.71
14 hours/day
Per month
$21.71
128 kWh
Per year
$261
1,533 kWh
By usage level in Colorado
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (7 hrs/day) | $0.36 | $10.85 | $130 |
| Typical (14 hrs/day) | $0.71 | $21.71 | $261 |
| Heavy (24 hrs/day) | $1.43 | $43.41 | $521 |
Colorado 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 Colorado?
At Colorado's current average residential rate of 17¢/kWh (July 2026), a grow light with typical usage costs about $0.71 per day, $21.71 per month, or $261 per year.
Is running a grow light in Colorado more expensive than average?
No — it's cheaper. Colorado's rate is about 7% below the U.S. average: $21.71 per month here versus $23.37 nationally.
What does electricity cost in Colorado right now?
Colorado residents pay an average of 17¢ per kWh as of July 2026 — the 30th cheapest rate of the 51 U.S. jurisdictions we track.