The Visayas grid is placed on ‘yellow’ alert this Wednesday, Oct. 1, as several power plants went on forced outage following the 6.9-magnitude earthquake that had shaken Cebu Tuesday night.
In an advisory, the National Grid Corp. of the Philippines (NGCP) said the Visayas grid would be under yellow alert from 1 p.m. to 12 a.m.
In a yellow alert, the power supply can still meet demand, but it will serve as a warning that when a plant breaks down one way or another, it will result in brownouts.
The grid operator said a total of 27 power plants had tripped due to the earthquake, leading to 1,444.1 megawatt (MW) capacity loss from the grid. At least 10 transmission lines are also on outage.
Sixteen more power plants were not operational even prior to the incident.
The current available capacity is at 1,888 MW, while the peak demand is 1,839 MW.
The Luzon and Mindanao grids, meanwhile, are under normal operations. /dda