NGCP Declares Visayas Yellow Alert After 900 MW Outage
The Visayas power grid entered a yellow alert on August 23, 2026, due to over 900 megawatts (MW) of unavailable capacity. The National Grid Corporation of the Philippines (NGCP) attributed the alert to forced generator outages and derated plant capacities.
Visayas Grid Faces Capacity Shortfall
The Visayas power grid entered a yellow alert on August 23, 2026, from 6 p.m. to 9 p.m., the National Grid Corporation of the Philippines (NGCP) reported. A yellow alert demonstrates that operating margins have fallen below the transmission grid’s required contingency reserves. This specific alert resulted from over 900 megawatts (MW) of unavailable generation capacity. NGCP attributed this shortfall primarily to forced generator outages and derated plant capacities.
Specific Plant Issues Trigger Alert
NGCP further detailed the grid's capacity, stating available supply was 2,516 MW against a forecast peak demand of 2,292 MW. The alert was triggered by the ongoing unavailability of two major coal-fired facilities, TVI Units 1 and 2. Additionally, KSPC Unit 1 experienced an unexpected shutdown on August 22, 2026, due to a suspected boiler tube leak. These incidents significantly reduced the region's power reserves.
The total unavailable capacity reached 901.9 MW. This figure includes dozens of power plants across the Visayas experiencing forced outages. Eight facilities went offline in August 2026 alone, with others having been offline since as far back as 2021. Furthermore, nine facilities operated at reduced generation capacities, exacerbating the supply constraints.
For businesses in the Visayas region, this event signals potential power supply instability. Sustained capacity issues could raise operational costs and disrupt industrial activities, underscoring broader energy security challenges for the Philippines.
This situation demands closer scrutiny of grid resilience and investment in new generation capacity to prevent future disruptions.
This article is journalism, not investment advice; consult a licensed professional before making financial decisions. Market data is indicative, may be delayed, and should be verified with your broker or exchange before use.
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