FROM 3 TO 9 P.M. By GMA News Published June 2, 2026 8:23am + Add GMA on Google Make this your preferred source to get more updates from this publisher on Google. The Visayas Grid will be on yellow alert from 3 to 9 p.m. on Tuesday, June 2, 2026, the National Grid Corporation of the Philippines (NGCP) said.According to the NGCP, peak demand for June 2 is estimated at 2,412 MW but the available capacity of the Visayas grid is only at 2,542 MW.Some plants are on forced outage as follows, the agency said:10 plants in June 2026; 9 plants 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.Meanwhile 11 plants are running on derated capacities, NGCP said.These have resulted in 996.4MW being unavailable to the Visayas grid, it added.The NGCP said the unavailability of Visayas' large coal plants TVI 1, TVI 2, PEDC 3, and KSPC 2 as well as high system demand forecast have contributed to the declaration of a yellow alert."A yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement," it said.READ: What does each power alert level mean?—KG, GMA News