Rayong,Thailand – November 5th, 2025 – GC Maintenance and Engineering CompanyLimited (GCME), an engineering solutions leader within the PTT GlobalChemical group, and Peak Energy, leading clean-energy platformoperating across Asia-Pacific, today announced the signing of a Power Purchase Agreement (PPA) for a 500 kWp rooftop solar project at GCME’s facility in Rayong, Thailand.

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Under the long-term agreement, Peak Energy will design, finance, install, and operatethe rooftop photovoltaic system. Once commissioned, the project is expected togenerate approximately 730 MWh/year of clean electricity per year, avoiding ~350 tonnes of CO₂ annually. The system is structured as an on-site PPA, enabling GCME to purchaserenewable electricity with no upfront CAPEX improving cost predictabilityduring solar hours and supporting corporate carbon-reduction objectives.

TheRayong facility hosts key operations for GCME and is one of the primary siteswhere engineering and maintenance activities are carried out. Integratingrooftop solar at this location represents a concrete step toward more competitive,resilient, and climate-aligned operations.

GCME, as a key technical and operational arm of PTT Global Chemical, brings deep expertise in plant maintenance, safety engineering, andintegrated asset support.

“This agreement reflects GCME’s pragmaticand forward-looking approach to energy management as part of the PTT GlobalChemical group,” said Gavin Adda, CEO of Peak Energy. “In a grid paritymarket like Thailand, where the energy market is highly competitive, site-levelsolutions that offer long-term price visibility for industrial players areincreasingly relevant. This project has been structured to integrate seamlesslyinto existing operations, with a focus on safety, reliability, and measurableimpact. We appreciate the trust placed in this collaboration and remaincommitted to supporting GCME’s operational and sustainability priorities overtime.”

About Peak Energy

Headquartered in Singapore, Peak Energy develops, owns, and operates renewable assets across Asia Pacific (APAC). With 300 MW of operating assets and 1 GW worth of projects indevelopment, our portfolio spans Japan, Korea, Australia, Taiwan, the Philippines,Thailand, Singapore and Indonesia. Our activities encompassing the full range of renewable energy business models - including utility-scale development, off-site PPAs, onsite PPAs, and energy storage applications - Peak Energy is a one-stop partner for corporates seeking to decarbonize their operations in APAC. We believe in establishing long-term partnerships with our corporatecustomers, to accompany them in their decarbonization journey, through cleaner,cheaper energy.  

An experienced team handles thecomplete life cycle of our energy assets from origination and developmentthrough to operations and decommissioning, employing state-of-the arttechnology and the industry best practices, respectful of the environment and followingworld-class HSE standards. 

Our business practices,technological and HSE standards are standardized across APAC, but we areimplemented and operate locally, with teams in seven countries, and lastingpartnerships with local customers, EPCs, vendors, channel partners. 

Peak Energy is wholly owned by Stonepeak, a leading alternative investment firm specializing in infrastructure and real assets with more than USD 79.9 billion of assets under management. Our financial and technical strength coupled with our relationships in local markets allows us to optimize our capital deployment in high quality assets. 

For more information, please visit https://www.peakenergy.asia. 

Media Contacts

Peak Energy
General enquiries: media@peakenergy.asia

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