By Frances Pio
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Inilagay ng National Grid Corporation of the Philippines (NGCP) nitong Miyerkules ang Luzon grid sa ilalim ng yellow alert, kasunod ng sapilitang pagkawala ng ilang planta sa buong bansa.
Sa isang advisory, sinabi ng NGCP na ang Luzon Grid ay nasa yellow alert mula 10 a.m. hanggang 11 a.m. at mula 12 noon hanggang 4 p.m. nitong Miyerkules, na nagpapahiwatig na ang grid ay may manipis na reserba batay sa pagkakaiba sa pagitan ng supply at demand.
Ang operating requirement ay nasa 11,274 megawatts, na may available na kapasidad na 12,008 megawatts at isang net operating margin na 369 megawatts.
Napansin ng NGCP ang kabuuang unplanned unavailable energy na 1,592 megawatts dahil sa sapilitang pagkawala ng QPPL, SLPGC 1, SLPGC 3, SLPGC 4, GMEC 1, GMEC 2, at Calaca.
“The unplanned outages resulted in the use of multiple diesel power plants which are significantly more expensive as influenced by the ongoing Ukraine invasion,” sinabi ni Institute for Climate and Sustainable Cities (ICSC) chief data scientist Jephraim Manansala.
“The high power generating costs, interruptions, and the grid alert levels raised during this time highlights the vulnerability of our grid to large centralized generators,” ayon kay ICSC Energy Transition Advisor Alberto Dalusung III.
“Any problem with these centralized generators can push the entire power system into a costly and vulnerable state because of the significant share of each individual centralized plant in the system,” dagdag pa niya.