Pumping Water - Costs

The cost of pumping water

The cost of pumping water can be calculated as

C = 0.746 Q h c / (3960 μp μm)         (1)

where

C = cost per hour (USD, EUR, ...)

Q = volume flow (US gpm)

h = head (ft)

c = cost rate per kWh (USD/kWh, EUR/kWh, ....)

μp = pump efficiency (0 - 1)

μm= motor efficiency (0 - 1)

Example - Pumping Cost

10 US gpm is lifted 10 ft. The electricity cost is 0.1 USD/kWh and the pump and motor efficiency 90% (0.9). The cost per our can be calculated as

C = 0.746 (10 US gpm) (10 ft) (0.1 USD/kWh) / (3960 0.9 0.9)

  = 0.002 USD

Pumping Cost Calculator

Q - Volume flow (US gpm)

h - head (ft)

c - cost rate per kWh

μp = pump efficiency

μm= motor efficiency

Related Topics

  • Pumps - Piping systems and pumps - centrifugal pumps, displacement pumps - cavitation, viscosity, head and pressure, power consumption and more

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