Luzon and Visayas grids remained on yellow alert as of 6:18 a.m. yesterday as 48 power plant units were on either forced outage or de-rated displacing a capacity of 2,443.4 megawatts (MW).
Yellow alert was raised in the Luzon Grid yesterday from 1 p.m. to 4 p.m. and 8 p.m. to 9 p.m. as 18 power plant units and six more with de-rated capacities resulted in the unavailability of 1,911.3 MW in the region.
The same alert level was raised in the Visayas Grid from 1 p.m. to 9 p.m. as 19 power plant units were on forced outage and five more with de-rated capacities for a total lost capacity of 532.1 MW in the region.
Yellow alerts are issued when the level of power reserve in the grid is low and power interruptions are not yet imminent.
According to the National Grid Corporation of the Philippines, the alerts were raised as available capacity in the Luzon Grid was only at 14,818 MW compared to a peak demand of 13,628 MW and as available capacity in the Visayas Grid was only 2,961 MW against a peak demand of 2,625 MW.
