Visayas Grid Under Yellow Alert as Plants Fail
The Visayas region’s electricity grid has been placed under a yellow alert today, Friday, September 25, from 4 p.m. to 8 p.m., following the continued unavailability of critical power plants. The National Grid Corporation of the Philippines (NGCP) issued the advisory as the central Philippine islands confront another day of constrained power supply, with operational capacity struggling to meet the region’s surging demand and contingency requirements.
This recurring state of vulnerability for the Visayas grid underscores persistent systemic issues within its energy infrastructure, raising significant concerns about the economic stability and daily lives of millions of residents and businesses across the central Philippines. The consistent shortfall in available power capacity threatens investment, disrupts commerce, and highlights the urgent need for robust, long-term energy solutions.
According to NGCP advisories, the immediate cause for today’s yellow alert stems primarily from the prolonged forced outage of several pivotal coal-fired power facilities. Unit 1 of Therma Visayas, Inc. (TVI), Unit 3 of Panay Energy Development Corp. (PEDC), and Unit 2 of KEPCO SPC Power Corp. (KSPC) remain offline, severely limiting the grid’s ability to maintain necessary operating reserves. The grid’s available capacity for today stands at approximately 2,565 megawatts (MW), a figure deemed insufficient to cover the forecasted peak demand of 2,456 MW while also meeting crucial contingency provisions.
The present fragility is not an isolated event. Just yesterday, September 24, the Visayas grid experienced a more severe state of power instability, moving beyond yellow alerts (from 2 p.m. to 4 p.m. and 9 p.m. to 10 p.m.) to a red alert, which was in effect from 4 p.m. to 9 p.m. During the red alert period, the available grid capacity dwindled to 2,292 MW against a peak demand of 2,495 MW, signaling that supply was insufficient to meet consumer demand and the transmission grid’s regulating requirement, thereby elevating the risk of rotational brownouts. The same trio of major coal plants—TVI 1, PEDC 3, and KSPC 2—were identified as key contributors to yesterday's supply crunch due to their unavailability.
The problem extends beyond the three plants currently on forced outage. Official statements from the NGCP reveal a systemic issue of widespread plant unavailability across the region. As of today, a staggering 12 power plants have become unavailable this month alone. Furthermore, an additional 20 plants have been on forced outage since as far back as 2021, illustrating a chronic problem of maintenance, reliability, and age across the Visayas' power generation facilities. Compounding these issues, 17 other plants are currently operating at "derated capacities," producing less power than their full potential. The cumulative effect of these widespread issues is a substantial loss of 926.6 MW in available capacity, a critical shortfall that significantly stresses a region heavily reliant on a consistent power supply.
Beyond internal plant issues, external factors have also contributed to the current predicament, demonstrating the interconnectedness and vulnerabilities of the national grid. Yesterday, power imports from Luzon, a crucial source of supplementary energy for the Visayas, were temporarily unavailable. This interruption was due to an emergency shutdown of the Tabango-Kananga 230-kilovolt (kV) Line 2, necessitated by a customer undertaking emergency repairs on defective equipment. Such outages can cascade through the system, further stressing an already strained supply.
Understanding the distinction between a yellow and red alert is crucial for appreciating the immediate implications for consumers and industries. A yellow alert, like the one currently in effect, signifies that the operating margin – the reserve power available – is insufficient to meet the transmission grid's contingency requirement. While it does not automatically guarantee power interruptions, it signals thinning reserves, meaning any unexpected event, such as the sudden tripping of another power plant or an unforecasted surge in demand, could quickly escalate the situation to a red alert and trigger power outages. A red alert, on the other hand, means the supply is directly insufficient to meet demand, making rotational brownouts a strong possibility to prevent a complete system collapse that could lead to widespread, prolonged blackouts.
The persistent power deficits have not gone unnoticed by policymakers and industry stakeholders. A lawmaker recently urged the Energy Regulatory Commission (ERC) to launch a thorough investigation into the ongoing power challenges faced by both the Visayas and Mindanao grids, calling for accountability and long-term solutions. In response to the escalating crisis and the resultant spike in electricity prices, the ERC has already taken action, ordering the retroactive implementation of a secondary price cap in the Visayas and Mindanao spot markets. This regulatory measure aims to mitigate the financial burden on consumers grappling with high electricity costs due to limited supply.
Business leaders in the Visayas are increasingly vocal about the urgent need for sustainable solutions to prevent further economic disruption. Anton Perdices, president of the Cebu Chamber of Commerce and Industry (CCCI), has called on the private sector to step up investments in new power facilities within the region to bolster generating capacity. The CCCI is actively anticipating a power summit scheduled for October, where they hope to collaborate with government and industry players to devise permanent strategies to address the chronic energy crisis. This proactive stance from the business community reflects the significant impact power instability has on economic activity, investor confidence, and the region’s overall growth trajectory.
Department of Energy (DOE) Secretary Sharon Garin previously acknowledged that the frequent grid alerts in Visayas and Mindanao are largely a consequence of operational problems across multiple power plants. She specifically noted that repairs on some generating units were "not properly done," contributing to their instability and subsequent breakdowns. Garin’s statement underscored the urgency of the situation, mentioning plans to accelerate the deployment of power barges by the end of 2026 or early 2027 to bolster capacity temporarily. While assuring consumers that all possible measures are being taken, she also cautioned that a truly long-term, stable solution for the region’s energy demands might not fully materialize until 2028, highlighting the complex and time-consuming nature of large-scale energy infrastructure development.
The current situation in the Visayas is a stark reminder of the precarious balance between power generation and consumption in a rapidly developing region. The frequent alerts, driven by a combination of aging infrastructure, inadequate maintenance, and unforeseen technical problems, point to a critical need for comprehensive energy planning and substantial investment. Without robust and reliable power generation, the Visayas' potential for sustained economic growth and the daily lives of its inhabitants will remain perpetually at risk, shadowed by the threat of darkness. The upcoming power summit and the proposed long-term solutions will be closely watched, as the Visayas eagerly awaits a future of stable and sufficient energy.