The dam features one of the world's largest hydro-floating solar hybrid power plants, covering 720,000 square meters on the water surface.
The reservoir area is commonly referred to by locals as 'Phu Phrao' due to its proximity to the Wat Sirindhorn Wararam Phu Phrao temple located on an adjacent hill.
The dam was constructed primarily to support agricultural irrigation and electricity generation for the northeastern region of Thailand.
The hybrid power system helps reduce greenhouse gas emissions by combining hydroelectric power with solar photovoltaic technology.
The reservoir creates a massive waterway that feeds into the Mun River, a major tributary of the Mekong.
The site includes a learning center focused on renewable energy technologies and the history of the dam.
Sirindhorn Dam is a major hydroelectric project situated on the Lam Dom Noi River in Ubon Ratchathani Province, Thailand. The site is most notable for its large-scale 'Hydro-floating Solar Hybrid' project, which integrates solar panels with the dam's reservoir to generate clean energy. The surrounding area features manicured gardens, viewpoints overlooking the expansive reservoir, and recreational spaces for visitors. It serves both as a functional power generation facility and a local destination for scenic nature viewing. The dam creates a significant artificial lake that supports local irrigation and aquaculture. The facility is managed by the Electricity Generating Authority of Thailand (EGAT).
The elevated viewpoint overlooking the dam's solar panel arrays and the expanse of the reservoir.
Visit the nearby Wat Sirindhorn Wararam Phu Phrao after visiting the dam to see the famous fluorescent temple art that glows after dusk.
Bring sun protection as the dam area is largely open and exposed to direct sunlight.
Check the weather before visiting, as high winds or storms can impact visibility over the large reservoir.
Do not attempt to swim in the reservoir or restricted dam waters; avoid visiting during peak midday heat when shade is limited.
Dress modestly if entering nearby temple grounds; refrain from touching electrical equipment or crossing restricted security barriers.
