THE outage experienced in some parts of Eastern Samar on Monday was caused by power line tripping.
The National Grid Corp. of the Philippines (NGCP) said the 69-kilovolt Taft feeder tripped at 12:59 a.m.
NGCP said it has worked double time to immediately restore transmission services to the Eastern Samar Electric Cooperative. The Parañas-Taft section was re-energized at 1:52 a.m.
The NGCP power outlook for Monday indicated low reserves for the Visayas grid at 56 megawatts (MW).
In its advisory, the NGCP said the Visayas has a system capacity of 1,645 MW and a projected peak demand of 1,589 MW.
For Luzon, it has a reserve of 668 MW, with a system capacity of 9,210 MW and a projected peak demand of 8,542 MW. For Mindanao, it has a projected power deficit of 100 MW due to a system capacity of 1,209 MW and a peak demand of 1,309 MW.