Sungai Merah Substation Enhances Power Supply in Sibu
The Sungai Merah Substation, operational since July 2025, strengthens Sibu's electricity reliability and capacity for future demand. With an investment of RM149 million by Sarawak Energy Berhad, it reduces dependence on the Oya Substation.

The Sungai Merah Substation, completed in July 2025, is a crucial infrastructure project aimed at bolstering Sibu's electricity supply. This facility, funded by Sarawak Energy Berhad at RM149 million, began operations in July 2025 and provides significant additional power to the region.
It reduces reliance on the 275kV Oya Substation, enhancing the overall reliability and stability of the power supply system. The substation receives electricity from the Kemantan 275kV transmission line, stepping it down to 132kV for distribution.
It features two 80MVA transformers, each operating at a maximum load of 40MVA. The substation is part of the Coastal Grid, supplying electricity not only to Sibu but also to Tanjung Manis and Daro. This development is likely to support future energy demands, mitigating potential supply risks as consumption increases.




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