The Visayas Grid will again be placed under yellow alert from 6 p.m. to 7 p.m. on Wednesday, May 27, the National Grid Corporation of the Philippines (NGCP) said.

The grid’s peak demand reached 2,415 megawatts (MW), while available capacity stood at only 2,682 MW.

According to NGCP, 12 power plants have been on forced outage since the start of May, while another 12 plants are operating at limited capacity.

“12 plants are on forced outage since May 2026, 1 plant since March 2026, 3 plants since 2025, 2 plants since 2024, 2 plants since 2023, and 1 plant since 2021, while 12 plants are running on derated capacities, for a total of 858.15MW unavailable to the grid,” NGCP said.

The yellow alert was triggered by the unavailability of three major coal-fired power plants — TVI 1, TVI 2, and PEDC 3 — along with high system demand forecast in the Visayas.

A yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement.

Earlier, Energy Secretary Sharon Garin said additional power supply is expected to augment the Visayas Grid this week amid thinning reserves in the region.

The Department of Energy (DOE) said it is actively coordinating with the Independent Electricity Market Operator of the Philippines (IEMOP), NGCP, the Energy Regulatory Commission (ERC), generation companies, and industry stakeholders to speed up the safe restoration of affected facilities and implement measures to stabilize the grid and protect consumers.

The agency assured the public that efforts are underway to accelerate the restoration of affected power facilities.