MANILA, Philippines — For the third consecutive day, the Luzon grid will be placed on red and yellow alerts on Wednesday, May 29, said National Grid Corporation of the Philippines (NGCP).
The Visayas grid on the same day will also be placed under yellow alert.
According to the NGCPadvisory, the Luzon grid will be on red alert from 2 p.m. to 4 p.m.
Meanwhile, yellow alert will be up in the grid from 1 p.m. to 2 p.m., 4 p.m. to 5 p.m., and 6 p.m. to 11 p.m.
NGCP issues a red alert status when power supply is insufficient to meet consumer demand and the transmission grid’s regulating requirement.
Meanwhile, a yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement.
READ: Grids on constant red, yellow alerts show need for increased capacity — solon
The current available capacity in the area is 12,680 megawatts, while peak demand is seen at 12,430 megawatts.
A total of 3,177.3 megawatts are currently unavailable to the grid as 16 power plants are on forced outage — two of which since 2023, three since between January and March 2024, and 11 since between April and May 2024.
Meanwhile, six other plants are running on derated capacities.
The NGCP also further enumerated several factors that caused the raising of red and yellow alerts, particularly, the forced outage of power plants: Pagbilao 1, 2, and 3, QPPL, San Lorenzo, and Limay 7.
Three power plants — Sual 1, 2, and Limay 8 — are running in derated capacity.
Visayas grid
Meanwhile, the Visayas grid will be placed under yellow alert from 2 p.m. to 4 p.m. and from 6 p.m. to 7 p.m.
The current available capacity in the area, said the NGCP, is 2,890 megawatts while peak demand is at 2,538 megawatts.
READ: House probe sought on power grid’s frequent yellow, red alerts
“The yellow alert is due to the unavailability of Luzon to export to Visayas and high forecasted demand,” said the NGCP.
Eighteen power plants are currently on forced outages — one from 2022, two since 2023, one between January and March 2024, and 14 between April and May 2024.
Ten are currently running on derated capacities, resulting in a total of 567.4 megawatts unavailable to the grid.