EPANET - Efficiency Curve

An efficiency curve determines the efficiency of pump (Y in percent) as a function of pump flow rate (X in flow units):

The efficiency must represent the run-of-river efficiency, which takes into account the mechanical losses in the pump itself, as well as electrical losses in the pump motor. The curve is only used for energy calculations. If not provided, the overall pump efficiency (a single number) in the project's power options is used instead

Note: To create/edit a curve, use the command EPANETCURVES