NGCP: Visayas grid on red, yellow alerts on Tuesday, Oct. 27, 2026

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The Visayas grid will be placed on red and yellow alert status on Tuesday, October 27, 2026, due to the unavailability of power plants in the region and limited power imports from Mindanao.

In an advisory, the National Grid Corporation of the Philippines (NGCP) said red alert will be raised from 5 p.m. to 6 p.m., while yellow alert will be from 4 p.m. to 5 p.m. and then from 6 p.m. to 9 p.m.

The Visayas grid has an available capacity of 2,452 MW against a peak demand of 2,482 MW, as 861.2 MW remain unavailable to the grid.

The following were cited as factors that contributed to the red and yellow alerts in the Visayas grid:

• Unavailability of Visayas’ large coal plants TVI 1, TVI 2, and KSPC 1
• Limited power imports from Mindanao due to the planned outages of GNPK 4 and TSI 2.

The grid operator said 15 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 at derated capacity.

A red alert status is issued when power supply is insufficient to meet consumer demand and the transmission grid’s regulating requirement.

On the other hand, a yellow alert is issued when the operating margin is insufficient to meet the transmission grid's contingency requirement.—AOL, GMA News