The project was developed in two phases. Production from the first 210 MW project started in 1998. The project was expanded with an additional 290 MW hydropower plant that went into operations in 2012.

THPC was the first privately developed hydropower project in Laos and has served as a model for how Laos can utilize its hydropower potential in a sustainable way. Laos have the ambition to be the “battery of the East” and use the proceeds from hydropower sales to pull the country out of the least developed nation category by 2020.

THPC has won several international awards for its development, not least for its financing and is frequently used as a model for social and environmental work in sustainable hydropower development.

SN Power hold a minority share, the other owners are EdL Generation Public Company in Laos 60% and GMS Power Public Company Limited in Thailand 20%.