Energy Saving by Introduction of Inverters for Raw Water Intake Pumps

Representative Participant
Yokohama Water Co., Ltd.
Partner Participant:Thu Duc Water B.O.O Corporation

Outline of GHG Mitigation Activity

This project introduces invertors to control the motor of pumps at the intake pumping station in Ho Chi Minh City and reduces energy consumption as well as GHG emission.

Currently the pump operation is ineffective because the amount of water is adjusted by the valve operation on the discharge side.

On the other hand, inverter will enable to control flowrate by adjusting the rotational speed of motor to cope with fluctuation of water volume and to keep valves at the discharge side always fully open.

By introduction of invertors, it is unnecessary to control the amount of water by valve operation. As a result, the pump can be operated efficiently and the power consumption is reduced.

Expected GHG Emission Reductions


[(Reference Power Consumptions) – (Project Power Consumptions)] x Emission Factor (EF)

=[(Power Consumptions with valve control) – (Power Consumptions with invertor control) ]x EF

Site of JCM Project