The National Grid Corporation of the Philippines (NGCP) has declared a yellow alert for the Visayas grid this afternoon due to tight power supply in the region.

In an advisory, the transmission operator said available capacity stood at 2,403 megawatts (MW) while peak demand reached 2,284 MW, leaving the operating margin too thin to meet the transmission grid’s contingency requirement. The yellow alert took effect starting 5 p.m.

NGCP attributed the tight supply to persistent plant disruptions. Ten plants have been on forced outage this January, including four carried over from 2025, three from 2024, two from 2023, and one that has been offline since 2021.

Another 21 plants are operating below full capacity, reducing the grid’s available power by 681.1 MW.

The latest outages pushing the Visayas into yellow alert include TVI Unit 1 with 169 MW and PEDC Unit 2 with 83.7 MW.

Meanwhile, the Luzon and Mindanao grids remain stable under normal operating conditions.

The Department of Energy earlier warned of tighter supply in the Visayas this year partly due to delays in renewable energy projects under the first two rounds of the Green Energy Auction.

“Projections basically show that we have to catch up because of the failure of the GEA winners to deliver,” Energy Secretary Sharon S. Garin said in a recent interview with reporters, noting that these delays forced a revision of the country’s 2026 to 2028 power outlook.

Despite the challenges, Garin assured consumers that the supply strain will not trigger widespread blackouts, as the government moves to stabilize the grid and fast-track new capacity.