[3] It impounds the Lam Dom Noi River, and its reservoir is the province's largest water resource.

The dam was commissioned in 1971 to serve as a hydropower facility as well as to supply irrigation water.

Furthermore, they claim that the land in the resettlement village is of poor quality and few crops can be grown, and that a proposed irrigation canal was never built.

[4] The reservoir and dam power the Sirindhorn Hydropower Plant, which has an installed capacity of 3 units of 12,000 kilowatts each and annual energy production of 90 GWh.

[6][7][8] Though covering less than 1% of the reservoir's surface area, the floating solar panels prevent 460,000 cubic meters of evaporative water loss per year.