The National Grid Corporation of the Philippines (NGCP) has launched a probe into the power outage incident Sunday night that affected 850,000 customers of the Manila Electric Co. (Meralco).
“NGCP is investigating the root cause of the grid disturbance and will release information as soon as available,” the grid operator said.
At 6:45p.m., NGCP monitored a grid disturbance affecting the San Jose-Nagsaag 500 kilovolt (kV) transmission line 2 and multiple power plants in Luzon, resulting in automatic load dropping (ALD).
Meralco, for its part, said around 850,000 customers across its franchise area experienced power interruption after an ALD occurred at around 6:45 p.m. of October 1. Power was restored at 7:33 p.m., Meralco said.
NGCP also said that power was fully restored at 7:33 p.m. in all areas affected by the ALD in various provinces in Luzon, including Metro Manila, Cagayan, Kalinga, Apayao, Laguna, Quezon, Batangas, Camarines Norte.