Metro Manila, Philippines – The private sector grid operator said power reserves were thin for the Visayas in the afternoon to last for eight hours, with a number of generating facilities either on forced outage or operating at below capacity.
In an update, the National Grid Corporation of the Philippines (NGCP) said the yellow alert took effect at 1 p.m. to last until 9 p.m.
It said demand outlook for the central region was higher by 88 megawatts (MW) coupled with lower supply from Mindanao by 30 MW with the outage of the Pulangi 4 Unit 3 power plant.
The operator issues a yellow alert when the transmission grid contingency requirement is insufficient.
The NGCP said a total of 733.5 megawatts (MW) were unavailable to the grid after 11 power plants were on forced outage in April to August, while six others were out since 2023.
Six plants have been running on lower output for a number of reasons.
The NGCP said available capacity in the Visayas was 2,528 MW against a peak demand of 2,475 MW.
The Visayas grid services Samar, Leyte, Cebu, Bohol, Negros Island, and Panay Island.
The NGCP said the Luzon and Mindanao grids are under normal condition.
