NGCP: Visayas grid under yellow alert on Monday, Oct. 26, 2026

Make this your preferred source to get more updates from this publisher on Google.

The Visayas power grid will be placed under yellow alert on Monday due to thin reserves resulting from the unavailability of several power plants.

In an advisory, the National Grid Corporation of the Philippines (NGCP) said the yellow alert will be hoisted over the island cluster from 5 p.m. to 6 p.m.

The grid operator said the Visayas grid is currently operating at 2,689 megawatts (MW) capacity against a peak demand of 2,473 MW.

The NGCP cited the following factors that contributed to the yellow alert declaration in the Visayas grid:

• Unavailability of Visayas’ large coal plants TVI 1 and KSPC 1
• Limited power import from the Mindanao grid due to the unavailability (planned outage) of GNPK 4 and TSI 2.

It added that 12 plants are on forced outage in October, two plants since September, two plants since August, one plant since June, three plants since May, three plants since 2025, one plant since 2024, two plants since 2023, and one plant since 2021, while 16 plants are running on derated capacity.

The outages and derated capacities of dozens of plants resulted in a total of 650.3 MW unavailable to the Visayas grid.

A yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement.

While supply is still enough to meet current demand, it no longer reaches the required safety margin. —AOL, GMA News