NGCP seeks ERC nod on P9.68B Taguig substation project

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TO ensure the reliability of Metro Manila’s transmission network, the National Grid Corporation of the Philippines (NGCP) has sought the approval of the Energy Regulatory Commission (ERC) for its P9.68 billion Taguig substation project.

According to the NGCP, the Taguig extra high voltage substation project is part of the Metro Manila 500 kilovolt backbone loop project, which will be implemented in stages.

Without the project, the adequacy, security and reliability of power supply to Metro Manila will continue to be at risk, especially during contingency events, the NGCP said.

“This is due to heavy loading of the single circuit 230 KV transmission line of the Quezon- Dona Imelda-Paco-Muntinlupa corridor,” said NGCP, which operates the country’s transmission network.


It explained that Luzon’s power requirement is highly concentrated in Metro Manila, which accounts for 53 percent of total demand.

To meet this demand, the NGCP said power is imported from generating plants in the Northern and Southern parts of the Luzon grid, which is then delivered of Metro Manila through various 230 kV and 500 kV transmission line corridors.

The major transmission corridor, the 500 KV network, delivers the bulk power generation to Metro Manila through the San Jose EHV Substation in Bulacan and Dasmarinas EHV Substation in Cavite.

With the increase in power transfer in Metro Manila, the NGCP said it is expected that these two major substations will be overloaded.

“To provide security and reliability of supply to Metro Manila, the development of a new EHV substation and the augmentation of the existing transmission line configuration are necessary,” it said.

The national grid maintained that the project would also address the severe low voltage issue in the 230 KV substations within Metro Manila, brought about by the single circuit configuration of the existing transmission line and its heavy loading condition.

The project is set for implementation over a 60-month period, including the preparation of the bid documents, the actual bidding, and the project construction. RITCHIE A. HORARIO

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