Thailand , Feb 16, 2024
Thailand is emerging as a clean energy innovator with its ambitious floating solar farms — massive arrays of solar panels installed on dam reservoirs across the country. These projects are not only producing renewable energy but also setting a new benchmark for the region.
The centerpiece is the Sirindhorn Dam floating solar farm in Ubon Ratchathani, one of the world’s largest hydro-solar hybrid projects. It combines solar energy production with existing hydropower infrastructure, allowing energy output even when the sun isn’t shining. This dual system increases reliability while maximizing land use efficiency.
Environmental trade-offs have been carefully studied. Engineers say the water-based system helps keep the panels cool, improving their efficiency. It also reduces water evaporation — a key concern in drought-prone regions. “It’s a win-win for clean energy and water conservation,” said one project engineer.
The government’s energy authority has announced plans to replicate this model at several other dams across the country. Floating solar is now a pillar of Thailand’s national energy plan, which aims to source 35% of power from renewables by 2037.
Neighboring countries, including Malaysia and the Philippines, have taken note. Energy ministries in both nations are exploring pilot projects to test the viability of floating solar in their own hydropower facilities.
However, challenges remain. Initial costs are higher than traditional land-based solar farms, and environmental groups warn that improper placement could impact aquatic ecosystems and local biodiversity.
Still, Thailand’s efforts show how innovation can create scalable green solutions in the face of climate urgency. As demand for clean energy rises, floating solar farms may become a common sight across Southeast Asia.
