Rotating blackouts were executed on April 12 in Luzon, including in Metro Manila, as the Luzon grid was set on a 13-hour red alert status following the closedown of several power plants.
The Department of Energy (DOE) said the Luzon grid spent a whole of 2,489 megawatts (MW) because of intended maintenance, unplanned interruption and de-rated capacity of some power plants.
Plants under unplanned outage are the 150-MW Unit 2 of San Miguel Consolidated Power Corp. (SMCPC), the 647-MW Sual Unit 1 of Team Energy and San Miguel, the 150-MW Unit 2 of Southwest Luzon Power Generation Corp. (SLPGC) Unit 2 of DMCI; the 420-MW Pagbilao Unit 3 of Team Energy and Aboitiz Power, and the 135-MW Unit 1 of South Luzon Thermal Energy Corp. (SLTEC) Unit 1 of the Ayala Group.
Due to significant generation inadequacy, the National Grid Corp. of the Philippines (NGCP) established a yellow alert notice on the power grid from 8 a.m. to 9 a.m. and 10 p.m. to 11 p.m., and red alert from 9 a.m. to 10 p.m. last Friday.
The DOE said a peak of six percent of the load in Luzon (588 MW out of around 10,022 MW demand peak) underwent two- to three-hour power interruption.
Starting 9 a.m., the NGCP implemented the Manual Load Dropping (MLD) – or rotational blackout – over several areas in Luzon to keep the integrity of the power system.
The nearby province of Cavite, particularly in Imus, General Trias, Dasmariñas City, Trece Martires City, Tagaytay City, Silang, Naic, Indang, Amadeo, Bacoor, Noveleta, Kawit, Cavite City, Tanza, Rosario, General Mariano Alvarez and Carmona, were also affected.
News source: Philippine Star