Visayas grid stays under under yellow alert

MANILA, Philippines – Tight power reserves prompted the National Grid Corporation of the Philippines (NGCP) to place the Visayas grid under a yellow alert again on Tuesday during the evening peak period.

The yellow alert will be in effect from 5 p.m. to 8 p.m., with available capacity projected at 2,590 megawatts (MW) against an expected peak demand of 2,394 MW.

READ: Visayas grid slips back into red alert

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NGCP attributed the yellow alert to the continued unavailability of the Visayas’ large coal-fired power plants—TVI Units 1 and 2 and PCPC—as well as the forecast of high electricity demand.

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NGCP declares a yellow alert when the operating margin falls short of the transmission grid’s contingency requirement, signaling thin power reserves while supply remains available.

READ: Visayas power woes highlight need for gridwide upgrade

The grid operator said eight power plants have remained on forced outage since July, alongside four units offline since June, seven since May, one since March, three since 2025, three since 2024, two since 2023 and one since 2021.

Meanwhile, 13 generating units are operating at reduced capacity, leaving a total of 929.8 MW unavailable to the Visayas grid. /pai INQ

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