Cost to Run a Incandescent Bulb in Colorado
Colorado's average residential electricity rate is 16.2¢/kWh as of May 2026 — the 23rd cheapest in the country, 12% below the U.S. average. At typical usage (5 hours/day), a incandescent bulb here costs $1.48 per month.
Per hour
1.0¢
at 40–100 W
Per day
4.9¢
5 hours/day
Per month
$1.48
9.1 kWh
Per year
$17.74
110 kWh
By usage level in Colorado
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (2.5 hrs/day) | 2.4¢ | $0.74 | $8.87 |
| Typical (5 hrs/day) | 4.9¢ | $1.48 | $17.74 |
| Heavy (10 hrs/day) | $0.10 | $2.95 | $35.48 |
Colorado vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a incandescent bulb in Colorado?
At Colorado's current average residential rate of 16.2¢/kWh (May 2026), a incandescent bulb with typical usage costs about 4.9¢ per day, $1.48 per month, or $17.74 per year.
Is running a incandescent bulb in Colorado more expensive than average?
No — it's cheaper. Colorado's rate is about 12% below the U.S. average: $1.48 per month here versus $1.68 nationally.
What does electricity cost in Colorado right now?
Colorado residents pay an average of 16.2¢ per kWh as of May 2026 — the 23rd cheapest rate of the 51 U.S. jurisdictions we track.