Estimate electricity use and cost for hydroponic nutrient circulation, dosing, and aeration equipment. Combine device power, daily runtime, number of identical units, operating days, and electricity price in one straightforward energy budget.
Energy (kWh) = Watts/unit × Units × Hours/day × Days ÷ 1,000
Cost = Energy × Price per kWh
The main result is electricity cost for the specified operating period. Annualized cost holds the entered daily schedule constant for 365 days.
For variable-speed equipment, use measured average watts rather than maximum nameplate power.
Four 180 W units running 18 hours/day for 30 days use 388.8 kWh. At $0.16/kWh, cost is $62.21.
Only if you want a whole-system estimate; this page is intended for nutrient circulation and dosing equipment.
Use average daily runtime or measured average watts across the day.
No. Add utility demand, fixed, and time-of-use charges separately.
Yes. Calculate each option with its measured power and expected schedule.
Electricity is billed in kilowatt-hours, and 1,000 watt-hours equals 1 kWh.
| Item | Meaning |
|---|---|
| Connected power | Watts per unit multiplied by unit count |
| Runtime | Hours operated per day |
| Period energy | Connected kW multiplied by total hours |
| Annualized cost | Same daily schedule projected over 365 days |