The public may have to endure rotational brownouts a while longer as a stable power supply, at least in Luzon and the Visayas, is yet to return. 

This situation, coupled by the extreme heat experienced across the country, power distributors can only encourage consumers to try to conserve electricity.

“With this situation, wala itong exact na projection ang normal nating operation o walang rotational brownout once na red alert status, because, una, sa generator side pa rin tayo naghihintay ng update on our end,” said Angel Tan, spokesperson of More Electric and Power Corporation.

According to the National Grid Corporation of the Philippines (NGCP), the stability of the supply is dependent highly on the power plants.

“Ang timeframe will really depend on when ang mga power plants makabalik online, especially ang mga malalaki. Ang mga base loads, we defer it to the DOE because they are the ones who have the authority over the power plants for the generators,” said Reaghan Alcantara, Lea Specialist of the Public Relations Department of NGCP Western Visayas.

The power supply in Luzon and the Visayas was affected in May due to problems encountered by power plants in the two regions.

NGCP hoisted red and yellow alerts over the Luzon and Visayas grids in certain times of day, for at least three days starting on May 13, 2026, due to unstable power supply.

NGCP said a red alert status is issued 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.