36 Performance Revi ew 02 Sect ion Ranhi ll Ut i l i t i es Berhad 2017 2018 2020 2019 2021 2022 NRW Leve l (%) 26.3 26.7 NRW level is slightly exceeding the target due to several operational factors MANAGEMENT DI SCUSS ION & ANALYS I S With the exception of three locations – Kluang, Segamat and Pontian, Ranhill SAJ has met all of SPAN’s NRW KPI targets for Johor. Overall commercial losses were also within the set threshold for FY2022. However, cumulative NRW levels for Johor were slightly higher than the set KPI at 26.3% (SPAN’s KPI: 26.0%). Efforts to continuously reduce NRW year-on-year were hampered by delays in pipe replacement and rehabilitation (“Rehab”) programmes. Rehab 2018, Rehab 2019 and Rehab 2020 were hampered by difficulties faced in obtaining work permits from relevant authorities, budgetary issues and other challenges faced such as lack of subcontractors to undertake works post the pandemic. Consequently, NRW increased due to the Natural Rate of Rise (“NRR”), which is the continuing increase in leakage that would occur in the absence of any leak repairs. NRR increases when there is a breakout of new leaks in the network, in addition to increase in volume of water loss from existing leaks. Other contributory factors to the NRW increase were increments in leakage volume due to ageing reticulation and distribution assets, as well as unplanned water supply disruption (due to lower quality of raw water quality violation and disruption of electricity power supply). NON-REVENUE WATER MANAGEMENT 25.1 25.0 24.7 24.9 23.5 26.0 24.0 26.5 24.5 25.0 25.5 27.0 Another notable factor was the lack of inventory for key items caused by disruptions in global and domestic supply chains. Consequently, necessary works to address leaks and NRR could not be undertaken at the required level and intensity to prevent an increase in NRW. Despite the delays and challenges, Ranhill SAJ expedited pipe rehabilitation and replacement works comprising Active Leakage Control (“ALC”), Infrastructure Leakage Index (”ILI”) and establishment of more District Metering Areas (“DMA”) to address NRW loss. Ranhill SAJ has also successfully established 26 DMAs in FY2022. This brings the total number of DMAs to 1,184 and with this, 95% connection coverage has been achieved in Johor. Additional ALC Teams were deployed as well as supporting teams which comprised personnel for commercial loss, trunk mains and reservoir monitoring. In FY2022, a total of 70,929 leaks were detected and rectified through intensified ALC activities. Other measures taken were increased use of timer controlled pressure reducing valves (“PRV”) within the water supply system to conserve water during off peak periods such as night time. Equally effective was the implementation of portable valve actuators to assist ground personnel to expedite the operations of large valves. This also has an added benefit as it reduces risks of occupational injuries to workers.
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