Brownouts in Visayas still expected as grid supply remains thin

CEBU CITY, Philippines — Consumers in the Visayas can still expect rotational brownouts and other forced power interruptions as the grid is seen to operate in thin reserves for this week.

Power supply in the region is expected to hover between 2,669 and 2,746 megawatts (MW), according to the latest weekly outlook from the National Grid Corporation of the Philippines (NGCP).

But peak system demand remains high throughout the weekday, with Wednesday reaching 2,524 MW, leaving a margin of roughly 223 MW.

READ MORE: Expect more brownouts in Visayas during El Niño, officials caution

Tuesday, meanwhile, posts the week’s thinnest reserve margin at only 220 MW — not because demand spikes, but because available supply dips to its lowest point at 2,668 MW.

The NGCP has yet to roll out any color-coded grid alerts between June 22 and June 26.

Previously: Successive yellow alerts

However, in the past week, the region faced successive yellow alerts, still due to the combined factors of high electricity demand and forced outages of some of Visayas’ largest coal-fired power plants.

Some power distributors in the region have implemented manual load dropping (MLD), leading to scheduled brownouts, to prevent grid collapse.

The most recent yellow alert — where grid supply remains sufficient, but margins or reserves have thinned —  was issued last Saturday, June 20.

READ MORE: Visayas grid red alert up, rotational brownouts expected

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