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NGCP: Visayas grid on yellow alert due to earthquake

Business | The Economy

NGCP: Visayas grid on yellow alert due to earthquake

By Gabriell Christel Galang

Due to impact of the 6.9-magnitude earthquake that transpired on Tuesday, Sept. 30, National Grid Corp. of the Philippines (NGCP) has placed the Visayas grid on yellow alert.

In a report issued Wednesday, Oct. 1, at 8 a.m., NGCP said 27 power plants in the Visayas tripped, cutting about 1,444.1 megawatts (MW) from the grid. This prompted a yellow alert, which is issued when the operating margin is not enough to meet the requirements of the transmission grid.

Power transmission services in the islands of Panay, Negros, Cebu, and Bohol are under normal operations. However, repairs are ongoing in parts of Leyte-Samar sub-grid.

According to the grid operator, 11 transmission lines are down, including Daanbantayan-Tabango 230-kilovolt (KV) lines one (L1) and two (L2), Tabango-Kananga 230-KV L1 and L2, Kananga-Ormoc 230-KV L1, Ormoc-Babatngon 138-KV L1 and L2, Babatngon-Paranas 138-KV L1 and L2, Paranas-Calbayog 138-KV L1 and L2, Ormoc-Maasin 138-KV L2, Isabel-Tongonan 138-KV Line, Isabel-Pasar 138-KV Line, and Pasar-IASCO 138-KV Line.

Other lines have been restored since early morning, namely Ubay-Maasin 138-KV Line, Ormoc-Maasin 138-KV, and Ormoc-Isabel 138-KV Line.

Meanwhile, NGCP reported 16 other power plants have been unavailable prior to the effects of the earthquake, while one is running on derated capacity.

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