EGAT Opens Bidding for 50-MW Floating Solar Project at Vajiralongkorn Dam

The Electricity Generating Authority of Thailand (EGAT) has officially launched the bidding process for its 50-megawatt (MWac) Vajiralongkorn Dam Floating Solar Project, a flagship clean energy initiative in Kanchanaburi Province. Bidding documents are now available for purchase until June 20, 2025, via EGAT’s procurement portal.

Mr. Thidade Eiamsai, EGAT’s Deputy Governor for Power Plant Development and Renewable Energy, announced that the floating solar project forms part of Thailand’s broader efforts to reach carbon neutrality by 2050 and net zero emissions by 2065. Scheduled for commercial operation in 2027, the project aims to harness solar energy by installing photovoltaic panels on the surface of the Vajiralongkorn Dam reservoir.

“This initiative supports EGAT’s commitment to reducing carbon emissions through a concrete offset and avoidance mechanism,” said Eiamsai.

The Vajiralongkorn Dam Floating Solar Project 1 is part of a nationwide clean energy program under Thailand’s Power Development Plan 2018–2037 Revision 1 (PDP2018 Rev.1) and the upcoming revised PDP. The broader program envisions a total installed floating solar capacity of 2,725 MW by 2030, leveraging EGAT’s existing hydropower dam reservoirs across the country.

EGAT’s hybrid approach combines floating solar with existing hydroelectric infrastructure, enabling optimized resource usage, lower electricity generation costs, and enhanced environmental and social sustainability. The integration of solar panels on water surfaces also minimizes land use and helps reduce water evaporation, offering additional ecological benefits.

With this project, EGAT continues to lead Thailand’s transition to clean energy while reinforcing the country’s strategic goal of energy security, affordability, and environmental stewardship.