Manila, May 13 -- Red alert status was raised over the Luzon and Visayas grids from 3 p.m. to 8 p.m. on Wednesday due to rising demand and insufficient capacity to meet regulating requirements.

In an advisory, the National Grid Corporation of the Philippines (NGCP) said a yellow alert was also declared for the Luzon grid from 8 p.m. to 10 p.m., and for the Visayas grid from 8 p.m. to 9 p.m.

A yellow alert is declared when the power supply reserve falls, meaning the grid still has enough electricity, but the margin is very thin.

Peak demand in Luzon was projected at 12,537 megawatts (MW), exceeding the available capacity of 12,447 MW.

In the Visayas, available capacity stood at 2,510 MW against an expected peak demand of 2,413 MW.

NGC...