Luzon grid placed on yellow alert on Wednesday — NGCP

FILE PHOTO: A power substation in Cainta, Rizal fenced off from the town public market. INQUIRER PHOTO/LYN RILLON

The National Grid Corporation of the Philippines (NGCP) has placed the Luzon grid under yellow alert on Wednesday afternoon to evening due to limited supply after two power plants tripped.

In an advisory, the grid operator said the yellow alert would be in place from 2 p.m. to 4 p.m., and 5 p.m. to 10 p.m.

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In a yellow alert, 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. A red alert, meanwhile, means that supply is no longer sufficient to meet demand. Brownouts could happen if demand is not managed.

It said the Luzon grid’s available capacity was 12,969 megawatts (MW), while the peak demand reached 11,768 MW.

The Visayas and Mindanao grid, meanwhile, were running under normal conditions.