Luzon Grid placed on Yellow Alert on Wednesday


The National Grid Corporation of the Philippines (NGCP) declared a yellow alert on Wednesday over the Luzon Grid after several power plants went on forced outages. 

On its Facebook page, NGCP announced that the yellow alert will be from 10:00 AM to 11:00 AM and 12:00 NN to 4:00 PM as the Luzon Grid had an operating requirement of 11,274 megawatts (MW) against the available capacity of 12,008 MW. 

The Luzon grid’s net operating margin was only 369 MW after 1,592 MW became unavailable due to power plant outages. 

Among the power plants that went on forced outage include the 460 MW Quezon Power Philippines Limited coal-fired power plant, the 150 MW Unit 1 Southwest Luzon Power Generation Corporation (SLPGC), SPLGC Unit 3 and 4 with 50 MW capacity each, Units 1 and 2 of the 632 MW GNPower Mariveles Energy Center Ltd. Co. coal-fired power plant, and the 300 MW Unit 2 Sem-Calaca Power Corporation. 

Last Saturday, NGCP declared a red alert on the Luzon Grid which caused power interruptions within the Manila Electric Co. (MERALCO) area. 

NGCP also declared yellow alerts over the Luzon Grid on Monday and Tuesday.