The useful power is applied to the fluid to meet the requirements of network throughput.

The ratio useful power/power consumption gives the pump or turbine yield.

• if the power absorbed is measured on the pump shaft, the ratio useful power/power consumption gives pump yield without motor

• if the power absorbed is measured in energy consumption of your engine pump, the ratio useful power/power consumption gives pump yield including engine performance.

Efficiency of the pump is given here in percentage.The maximum yield is 57% (pump + motor)