THE National Grid Corporation of the Philippines (NGCP) placed on red and yellow alert the Visayas power grid on Thursday.
The red alert takes effect from 5:00 p.m. to 8:00 p.m. A red alert status is issued when power supply is insufficient to meet consumer demand and the transmission grid’s regulating requirement.
From 2:00 p.m. to 5:00 p.m. and from 8:00 p.m. to 9 p.m., the grid is on yellow alert because operating margin is insufficient to meet the transmission grid’s contingency requirement.
The NGCP reported that the Visayas’ available capacity stood at 2,344 megawatts (MW) while peak demand reached 2,452MW.
It added that nine plants are on forced outage this month, one plant since July, three plants since June, seven plants since May, one plant since March, three plants since 2025, two plants since 2024, two plants since 2023, and one plant since 2021, while 16 plants are running on derated capacities, for a total of 916.2.MW unavailable to the grid.
The NGCP cited other factors that contributed to the red and yellow alert declarations:
Unavailability of Visayas’ large coal plants TVI 1, TVI 2 and KSPC 1.
Limited power import from Mindanao.