As a result, the National Grid Corp. of the Philippines (NGCP), the private firm operating and developing the government’s power grid, put Luzon on red alert from 1 p.m. to 4 p.m. It also originally raised a red alert in the Luzon grid from 6 p.m. to 8 p.m., but this was softened to a yellow alert following stabler supply. According to the company, 321,705 of its customers in Metro Manila and the provinces of Rizal and Cavite were affected by power interruptions triggered by the red alert. On the other hand, a yellow alert means operating reserve is not enough to meet the transmission grid’s contingency requirements. Energy Undersecretary Rowena Guevara later lowered the yellow alert projection to 10 in March after observing that a number of yellow alerts did not occur in earlier months.

Source: Philippine Daily Inquirer May 09, 2023 02:50 UTC