Luzon grid under yellow alert on Wednesday afternoon, evening

A power substation in Cainta, Rizal fenced off from the town public market. INQUIRER PHOTO/LYN RILLON

Updated on July 17, 2024 at 6:36 p.m.

The National Grid Corporation of the Philippines (NGCP) has placed the Luzon grid under yellow alert on Wednesday afternoon to evening due to a thin power supply.

The country’s grid operator said this alert status is being issued “when the operating margin is insufficient to meet the transmission grid’s contingency requirement.”

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In an advisory, the yellow alert will be in place from 3 p.m. to 9 p.m.

It said the tripping of the 417.4-megawatt San Gabriel power plant contributed to this.

The Visayas and Mindanao grid, meanwhile, are operating normally.

As of 6 p.m., the NGCP said the yellow alert status has been lifted following a decrease in forecast demand.