The cooling water used in the condensers and for the auxiliary plant is drawn from the Arabian Sea through submerged concrete inlet channel about 300m long to a siltation setting basin and than through an open inlet canal some 650m long to the circulating water pump house. The sea water flows from the circulating water intake through screens to remove debris and is pumped by the main sea water circulating pumps through the intake piping and valves to the condensers. The water is discharged through further piping and valves into a culvert and seal pit before flowing into the Hub River estuary through a 1,000m discharge canal.

The remainder of the auxiliary plant and systems are cooled by a closed circuit water system, using demineralised water.