Visayas Power Alert: Yellow Warning Raises Brownout Risk Tonight
The Visayas grid was placed under yellow alert from 5 p.m. to 10 p.m. as thin reserves and unavailable power plants raised brownout risk.
The Visayas grid is under a yellow alert this Saturday evening, putting power supply in the region under tighter watch as demand stays high and several plants remain unavailable.
According to GMA News Online, the National Grid Corporation of the Philippines said the yellow alert will run from 5 p.m. to 10 p.m. on May 30. NGCP reported available capacity of 2,581 megawatts against peak demand of 2,454 MW, leaving only a thin buffer for the grid.
The alert comes as 961.5 MW remain unavailable. NGCP said multiple plants have been on forced outage since May 2026, with others offline since previous years, while 12 plants are operating at derated capacities.
NGCP pointed to the unavailability of major Visayas coal plants — including TVI 1, TVI 2, PEDC 3, and KSPC 2 — plus high forecast system demand as key reasons for the alert. A yellow alert means supply can still meet current demand, but the operating margin is no longer enough to satisfy the grid’s contingency requirement.
For households and businesses, the practical takeaway is simple: the risk of rotational power interruptions goes up when the grid is on yellow alert, even if outages are not automatic. Source: GMA News Online
