Uncover the true cost of moving water with our advanced Water Pumping Cost Calculator. Whether for irrigation, domestic wells, or industrial applications, accurately estimate electricity usage and operational expenses. Optimize your system's efficiency, plan budgets, and identify areas for significant energy savings.
Formula:
The total pumping cost is derived from the power required to move a specific volume of water against a certain head, considering pump and motor efficiencies, operating hours, and energy cost.
Hydraulic Horsepower (HHP) = (Gallons per Minute (GPM) × Total Dynamic Head (ft) × Specific Gravity (SG)) ÷ 3960
Motor Input Power (kW) = (HHP × 0.746) ÷ (Pump Efficiency (%) × Motor Efficiency (%))
Total Cost = Motor Input Power (kW) × Operating Hours (hours) × Energy Cost ($/kWh)
Where:
- GPM: Flow rate in gallons per minute.
- Total Dynamic Head (TDH): Total equivalent height the water must be lifted or pushed against, in feet.
- Specific Gravity (SG): Ratio of the density of the fluid to the density of water (for water, SG=1).
- 0.746: Conversion factor from horsepower to kilowatts.
- 3960: Conversion constant for GPM, TDH, SG to HP.
- Pump Efficiency: The percentage of power delivered to the pump that is converted into hydraulic power.
- Motor Efficiency: The percentage of electrical power supplied to the motor that is converted into mechanical power for the pump.
- Operating Hours: The duration the pump operates per day.
- Energy Cost: The cost of electricity per kilowatt-hour.