National Transmission Corporation

TransCo joins the nation in observing 𝗣𝗵𝗶𝗹𝗶𝗽𝗽𝗶𝗻𝗲 𝗘𝗮𝗴𝗹𝗲 𝗪𝗲𝗲𝗸, from June 4–10, pursuant to Proclamation No. 79, s. 1999, a call for all sectors of society to take action on the protection and conservation of the Philippine Eagle. 🌿⚡

🌈 TransCo celebrates Pride Month this June!

Every employee deserves to come to work feeling safe, respected, and valued, regardless of who they are or who they love.

This , TransCo reaffirms its commitment to a workplace built on dignity, inclusion, and equal opportunity for all. Our strength as an organization comes from the diversity of the people who make up our team.

To every member of the family — you belong here. 💚💙

June is declared 𝗪.𝗔.𝗧.𝗖.𝗛. 𝗠𝗼𝗻𝘁𝗵 — 𝗪𝗲 𝗔𝗱𝘃𝗼𝗰𝗮𝘁𝗲 𝗧𝗶𝗺𝗲 𝗖𝗼𝗻𝘀𝗰𝗶𝗼𝘂𝘀𝗻𝗲𝘀𝘀 𝗮𝗻𝗱 𝗛𝗼𝗻𝗲𝘀𝘁𝘆 𝗠𝗼𝗻𝘁𝗵 pursuant to Proclamation No. 1782, s. 2009, a nationwide call for every Filipino public servant to uphold the values of integrity, punctuality, and accountability in the workplace. ⏰

At TransCo, these are not just ideals, they are the foundation of how we serve the Filipino people. As stewards of the nation's transmission assets, we recognize that honesty and time consciousness are essential to delivering reliable, efficient, and trustworthy public service.

This June, let us all commit to doing our work with integrity, on time, every time. ✅

TINGNAN: Pinangunahan ni Pangulong Ferdinand R. Marcos Jr. ang isang meeting kasama ang mga opisyal ng Department of Energy Philippines at iba pang kaugnay na ahensya upang talakayin ang mahahalagang usapin sa sektor ng enerhiya, kabilang ang kasalukuyang kalagayan ng power supply at grid conditions sa Luzon at Visayas.

𝗧𝗿𝗮𝗻𝘀𝗖𝗼 𝗷𝗼𝗶𝗻𝘀 𝗶𝗻𝘁𝗲𝗿-𝗮𝗴𝗲𝗻𝗰𝘆 𝗲𝗳𝗳𝗼𝗿𝘁 𝘁𝗼 𝗺𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗲 𝗠𝗶𝗻𝗱𝗼𝗿𝗼 𝗽𝗼𝘄𝗲𝗿 𝗴𝗿𝗶𝗱

The National Transmission Corporation (TransCo) has signed a Memorandum of Agreement with the Maharlika Investment Corporation (MIC), National Electrification Administration (NEA), and National Power Corporation (NPC) to support the modernization of Mindoro Island’s power grid.

As the designated Small Island Grid System Operator (SIGSO) for Mindoro, TransCo will continue to provide critical system operation expertise to help ensure a more reliable, resilient, and efficiently managed power system for the island.

Through this whole-of-government initiative, TransCo remains committed to strengthening energy security, improving grid reliability, and supporting the sustainable growth and development of Oriental and Occidental Mindoro.

Source: Maharlika Investment Corporation

The National Transmission Corporation (TransCo) extends its warmest congratulations to Atty. Brian Keith Hosaka on his reappointment as Commissioner of the Governance Commission for GOCCs (GCG).

TransCo is confident that Commissioner Hosaka's renewed leadership will continue to uphold the highest standards of transparency and accountability across the GOCC sector.

Mabuhay, Commissioner Hosaka! We look forward to your continued service to the nation.

𝗧𝗿𝗮𝗻𝘀𝗖𝗼 𝗮𝘁𝘁𝗲𝗻𝗱𝘀 𝗖𝗼𝗻𝗴𝗿𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗺𝗲𝗲𝘁𝗶𝗻𝗴 𝗼𝗻 𝗿𝗲𝗰𝗲𝗻𝘁 𝘁𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗳𝗮𝗶𝗹𝘂𝗿𝗲𝘀 𝗼𝗳 𝟱𝟬𝟬𝗸𝗩 𝗧𝗮𝘆𝗮𝗯𝗮𝘀-𝗜𝗹𝗶𝗷𝗮𝗻+ 𝗗𝗮𝘀𝗺𝗮𝗿𝗶𝗻𝗮𝘀-𝗜𝗹𝗶𝗷𝗮𝗻 𝗧𝗿𝗮𝗻𝘀𝗺𝗶𝘀𝘀𝗶𝗼𝗻 𝗹𝗶𝗻𝗲𝘀

The National Transmission Corporation (TransCo) led by President and CEO Joseph Omar Castillo (seated, right) participated in the joint meeting of House Committees on Energy and Legislative Franchises on recent technical failures of the 500 kiloVolts (kV) Tayabas-Ilijan + Dasmariñas-Ilijan transmission lines that led to the rotating power brownouts in the Luzon Grid.

The TransCo, as the owner of country’s power transmission assets, closely monitors the developments in the national grid, while the system operator National Grid Corporation of the Philippines (NGCP) maintains and operates the country’s transmission system. President Castillo aided in clarifying that the most recent joint effort of TransCo and NGCP was the coordinated conduct of an inventory in CY 2025. This was differentiated from an audit, the adoption of which has been strongly proposed by the members of the Congress, to closely monitor the performance of key power sector agencies and instrumentalities.

𝐓𝐫𝐚𝐧𝐬𝐂𝐨 𝐒𝐭𝐫𝐞𝐧𝐠𝐭𝐡𝐞𝐧𝐬 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲-𝐀𝐜𝐚𝐝𝐞𝐦𝐞 𝐏𝐚𝐫𝐭𝐧𝐞𝐫𝐬𝐡𝐢𝐩 𝐰𝐢𝐭𝐡 𝐔𝐒𝐓 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠

The National Transmission Corporation (TransCo) continues to strengthen its role as a partner in nation-building and engineering education as it officially joined the University of Santo Tomas UST Faculty of Engineering External Advisory Committee (ExACom).

TransCo’s membership was formalized through the signing of a Memorandum of Understanding (MOU), represented by Ms. Maria Theresa Laranang, Vice President for Resource Management and Services Group (RMSG), during the IM-PaCT 2026: UST Engineering Partners Summit held on 19–20 May 2026. The event formed part of UST’s 415th Founding Anniversary celebration and carried the theme, “Thom-PaCT: Uniting Thomasians and Multi-Sectoral Partners as One 1NS19NIA of Excellence Towards 120.”

As part of the ExACom, TransCo will share its industry knowledge, technical expertise, and institutional experience to support curriculum development and keep UST’s engineering programs responsive to emerging technologies, industry demands, and the evolving needs of the energy sector. The partnership also gives the corporation opportunities to engage promising engineering students through priority internship consideration, providing early access to future professionals who may contribute to the country’s power transmission and energy development landscape.

Through this partnership, TransCo reaffirms its commitment to supporting the development of future engineers and contributing to a stronger, more responsive, and innovation-driven energy sector.

📢 Abiso Mula sa ⚡️

Restoration Update:
0809h - Bansud-Mansalay 69kV line was re-energized
0817h - All affected feeders were re-energized except MLD: MA100, MA200, RX200 and RX400

Kaisa ang TransCo sa pagwawagayway at pagsasabit ng Pambansang Watawat para sa 𝗡𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗙𝗹𝗮𝗴 𝗗𝗮𝘆𝘀 mula 28 Mayo hanggang 12 Hunyo! 🇵🇭

Ang National Flag Days ay alinsunod sa Republic Act 8491 o ang Flag and Heraldic Code of the Philippines.
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📷 Opisyal na poster mula sa National Historical Commission of the Philippines (NHCP)