Cambodia has started operations at the 338MW Russei Chrum Krom facility, which is considered to be the largest hydropower project in the country.
Developed by China Huadian, the project is intended to power underserved villages and factories in the country.
Prime Minister Hun Sen was cited by Chinese news agency Xinhua as saying: "The dam will provide great benefits to both households and business establishments."
Situated on the Stung Russei Chrum River in the western part of Koh Kong province, the plant houses two power stations with combined annual output of 1.199 billion kilowatt-hours on average. The upper station has a generation capacity of 206MW and the lower one 132MW.
The upper concrete-face rockfill dam has a maximum height of around 124m and has been operational since 2013.
The lower dam is a roller-compacted concrete gravity dam with a maximum height of 58.5m.
Involving an investment of nearly $500m, the project was constructed by the Chinese corporation under a 35-year build-operate-transfer (BOT) agreement with the Cambodian Government.
Electricity Authority of Cambodia will be purchasing the renewable electricity from the project at a rate of 7.35 cents/kWh.
The Cambodian Government will earn annual tax revenue of $12.5m from the project.