Ubon Ratchathani, a sun-drenched province in northeastern Thailand, has long grappled with an ironic challenge: abundant sunlight but insufficient electricity. The Sirindhorn Dam hydro-floating solar project – a pioneering collaboration between Thailand and the Chinese mainland – now illuminates both homes and hopes through clean energy innovation.
From Sunlight to Solutions
While the region averages 2,400 hours of annual sunshine, residents faced frequent power shortages until this hybrid energy system became operational. The project combines floating solar panels with existing hydropower infrastructure, generating 45 MW of renewable electricity – enough to power 27,000 households annually.
Engineering Synergy
The installation's 144,000 solar cells float on the dam's reservoir, automatically adjusting position to maximize sun exposure. During peak sunlight hours, solar power takes priority while water is conserved. Cloudy days see seamless transition to hydropower, ensuring uninterrupted supply.
Green Development Bridge
This $35 million initiative represents growing Asia-Pacific climate cooperation. "This isn't just about megawatts," said a project engineer. "It's a working model of sustainable development that respects both environmental needs and economic growth."
The project has reduced carbon emissions by 47,000 tons annually while creating 300 local jobs during construction. Plans are underway to replicate this model across Southeast Asia's dam networks.
