On October 10, 2025, in Lat Krabang District, Bangkok
The National Energy Technology Center (ENTEC), under the National Science and Technology Development Agency (NSTDA), in collaboration with the Metropolitan Electricity Authority (MEA), has launched a pilot implementation of “EnPAT,” a safe transformer oil derived from Thai palm oil, in Bangkok. The installation took place in Khlong Song Ton Nun Subdistrict, Lat Krabang District, under the supervision of MEA Lat Krabang, deploying transformers filled with EnPAT and integrated with an online monitoring system to ensure real-time performance tracking. The installation was overseen by Mr. Chuangchot Chawawit, Assistant Director of MEA Lat Krabang, and Mr. Sunan Sing-in, Assistant Director of the Distribution Services Division.
EnPAT transformer oil features flash point and fire point that are twice as high as those of conventional mineral transformer oil, significantly enhancing operational safety. EnPAT is also biodegradable and environmentally friendly, posing no contamination risks in the event of leaks. Moreover, it can be recycled as feedstock for biodiesel production. Notably, over 97% of its raw materials are sourced domestically from Thai palm oil, helping to add value and strengthen the economic stability of Thai farmers.
This pilot installation marks a first step in using EnPAT within MEA’s power distribution system, aiming to enhance the safety of electricity distribution networks, especially in densely populated urban areas under MEA’s responsibility. The adoption of EnPAT represents a proactive measure to ensure both safety and environmental sustainability. Following the installation, MEA and the NSTDA research team will continue to monitor and analyze the performance data of the EnPAT-fill transformers to evaluate their ongoing operational efficiency.
MEA Enhances Urban Safety with Pilot Installation of EnPAT-Filled Transformers in Bangkok
Mr. Chuangchot Chawawit, Assistant Director of MEA Lat Krabang District, together with Mr. Sunan Sing-in, Assistant Director of the Distribution Service Division and Dr. Sumittra Chorajrochkul, Executive Director of the National Energy Technology Center (ENTEC), shared their insights during the installation of an EnPAT-filled distribution transformer in Lat Krabang District, Bangkok, on October 10, 2025.
“The Metropolitan Electricity Authority’s Lat Krabang District is delighted to be part of this initiative supporting the adoption of EnPAT-filled transformer. This installation marks the first step in officially integrating EnPAT into MEA’s power distribution system. From MEA’s perspective, adopting safe and environmentally friendly technology suitable for large metropolitan areas like Bangkok reflects the organization’s vision to develop a more efficient and secure electricity network. Importantly, this effort aligns with MEA’s mission to advance smart energy solutions that better serve the needs of urban communities across all dimensions,” said Mr. Chuangchot.
Dr. Sumittra further expressed,
“The implementation of bio-based transformer oil like EnPAT requires real-world field testing. We are deeply grateful for MEA’s strong support and facilitation throughout the installation process here in Lat Krabang. Today’s work here in Lat Krabang would not have been possible without the assistance of both MEA headquarters and the Lat Krabang district office, for which we’re deeply grateful.”
Mr. Sunan added, “EnPAT is a bio-based transformer oil derived from palm oil with high fire-resistant property, effectively reducing the severity of transformer explosions or fires. This is particularly critical in densely populated areas such as those under MEA’s responsibility. Deploying EnPAT represents a proactive approach that simultaneously addresses safety and environmental concerns.”
“The benefits of EnPAT extend beyond fire risk mitigation. The adoption of EnPAT demonstrates MEA’s commitment to supporting Thai oil palm farmers, as EnPAT is made from locally sourced palm oil, one of Thailand’s key economic crops. Incorporating it into the national power infrastructure adds value to agricultural products while promoting domestic innovation,” added Mr. Chuangchot.
“Every installation site is equipped with an online monitoring system that tracks operational performance and safety parameters in real-time. This allows both MEA and the research team to ensure the transformer operates under optimal conditions, providing confidence to service users, research teams, stakeholders, and nearby residents, that the transformers in their neighborhoods are functioning safely and reliably,” noted Dr. Sumittra.
Following the installation, MEA continues to work closely with the NSTDA research team to monitor and evaluate the performance of the EnPAT-filled transformer. The data collected will support further development and future expansion of this technology,” concluded Mr. Chuanchot.
