Institute for Climate and Sustainable Cities REACTIVE QUEZON CITY, May 14 2026 –– The latest rotating blackouts across Luzon and Visayas underscore the systemic risks created by concentrating generation and transmission infrastructure in a limited number of large facilities and critical corridors. From the forecasted available capacity in Luzon of 16,975 MW reported by the NGCP earlier in the day, system availability dropped to 12,447 MW, reflecting how concentration of critical assets can lead to an immediate tightening of power supply conditions. The cascading tripping on May 13 of 500 kV Dasmariñas-Ilijan transmission line at 4:48AM and  500 kV [...]