The National Grid Corporation of the Philippines (NGCP) has announced that Luzon grid will be under red and yellow alerts, and Visayas grid under yellow alert on Tuesday, April 16, due to outages in several power plants.
In an advisory posted on Facebook, NGCP said the yellow alert in the Luzon grid will take effect from 1 PM to 2 PM, 4 PM to 6 PM, and 9 PM to 11 PM.
Luzon grid will be placed on red alert from 2 PM to 4 PM and 6 PM to 9 PM.
"Nineteen (19) power plants are on forced outage, while three (3) others are running on derated capacities, for a total of 2,117.3MW unavailable to the grid," NGCP noted.
In a separate advisory, the agency said the yellow alert status in the Visayas grid will last from 2 PM to 4 PM and 6 PM to 7 PM.
"Twelve (12) power plants are on forced outage, while five (5) others are running on derated capacities, for a total of 676.5MW unavailable to the grid," it said.
The NGCP will carry out manual load dropping (MLD) while the alerts are raised.
As explained by Nueva Ecija 1 Electric Cooperative, Inc. (NEECO I), MLD is done through “rotational brownout."
"Dahil sa kakulangan sa supply ng kuryente, isinasagawa ang MLD sa pamamagitan ng “rotational brownout” kung saan may nakalaang oras ang itatagal ng pagpatay sa daloy ng kuryente sa isang kooperatiba o distribution utility tulad ng NEECO I," it said.
"Ang National Grid Corporation of the Philippines o NGCP ang nangangasiwa kung aling mga distribution utilities ang makakaranas ng MLD at maaaring makasama dito ang NEECO I lalo na kung mapapadalas ang RED ALERT status sa grid ng Luzon," NEECO I added.
