Visayas power grid remains under yellow alert on Saturday

MANILA, Philippines — The Visayas grid remains under “yellow alert” status on Saturday due to high demand forecast and unavailability of Visayas’ large coal plants, the National Grid Corporation of the Philippines (NGCP) announced.

READ: NGCP: Mindanao earthquake damages power lines

In an advisory issued at 9 a.m. on Saturday, the NGCP said the alert status will be effective from 4 p.m. to 9 p.m.

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It noted that the “yellow alert” is raised “when the operating margin is insufficient to meet the transmission grid’s contingency requirement.”

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NGCP explained that while the available capacity is at 2,483 megawatts (MW), the peak demand stands at 2,382 MW. It also said that the large coal plants TVI 1, TVI 2, PEDC 3, and KSPC 1 have been unavailable.

It also noted that there are a total of 1,052 MW unavailable to the grid as there are 16 plants on forced outage on June this year; eight plants on forced outage since May 2026; one plant since March 2026; three plants since 2025; two plants since 2024; two plants since 2023; and one plant since 2021.

It added that 13 plants are running on derated capacities. /mr

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