Grow light Electricity Cost in Illinois — $7.85/month (2026)
Illinois monthly
$7.85
U.S. average monthly
$8.63
Difference
-$0.78
← Grow light (all states) · Illinois electricity rate
Quick rate
Daily cost
$0.26
Monthly cost
$7.85
+$0.00 vs typical
Yearly cost
$95.54
kWh / month
48.0 kWh
Local monthly estimate: $7.85 · U.S. average equivalent: $8.63
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ad-after-calculator Quick answer
Running a typical grow light in Illinois costs about $0.26/day or $7.85/month at roughly $0.164/kWh, assuming 8 hours of use per day at 200 W. The U.S. average rate is about $0.180/kWh, so Illinois is roughly 9% lower than average for this estimate.
vs U.S. average
Local rate (Illinois)
$0.164/kWh
Monthly estimate: $7.85
U.S. average rate
$0.180/kWh
Monthly estimate: $8.63
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ad-after-state-table FAQ
- Most grow light units fall between 50 W and 400 W, with 200 W as a typical value for estimates.
- Our calculator uses 200 W as the typical wattage, within a reported range of 50–400 W.
- At 8 hours/day and 200 W, the estimate is about 1.60 kWh per day.
- Using 8 hours/day, the estimate is about 48.0 kWh per month.
- Per hour, grow light uses about 0.200 kWh (at 200 W).
- At typical use (200 W and 8 hours/day), the estimate is about $0.26/day at roughly $0.164/kWh.
- At typical use (200 W and 8 hours/day), the estimate is about $7.85/month at roughly $0.164/kWh.
- Running for one hour at 200 W costs about $0.033 per hour (using the Illinois rate of about $0.164/kWh).
- For typical use, the calculator estimates about $7.85/month for grow light in Illinois.
- At the typical Illinois residential rate, the estimate is about 48.0 kWh per month, which corresponds to roughly $7.85/month for grow light.
- Compared to the U.S. average, Illinois is about 9% lower for this estimate. Monthly cost is about $7.85 in Illinois vs $8.63 at the national average.
- Start with practical steps from our tips list (e.g., Avoid running this appliance longer than you need each day.). Smaller changes reduce kWh usage, which reduces the bill at your local rate.
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Est. monthly at Illinois rate ($0.164/kWh)