GoL – Sekong IV Hydropower Plant 400 MW – Laos - Project Profile

GoL – Sekong IV Hydropower Plant 400 MW – Laos - Project Profile


"GoL – Sekong IV Hydropower Plant 400 MW – Laos - Project Profile" contains information on the scope of the project including project overview and location. The profile also details project ownership and funding, gives a full project description, as well as information on contracts, tendering and key project contacts.

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The Government of Laos (GoL) is planning to construct the Sekong IV Hydropower Project on the Sekong River in Laos.

The project involves the construction of a 400MW hydropower plant. It includes the construction of a180m high dam with a narrow and deep 95km long reservoir.

The project also includes the construction of a powerhouse, a substation, access roads and related facilities, the installation of generators, turbines and transformers, and the laying of transmission lines.

Lao Holding State Enterprise (LHSE) has been appointed as associated developer.

In 2003, the Vietnamese government announced its intention to support the building of the Sekong 4 dam.

In April 2006, the Region Oil Company of Russia signed an agreement with Government of Laos (GoL) to investigate the construction of the three dams.

In 2006, Region Oil Company signed a memorandum of understanding (MoU) to conduct feasibility study.

In June 2007, Norconsult completed an Initial Environmental Examination (IEE) of the Sekong 4 Dam and the feasibility study. The environmental impact assessment (EIA) was submitted to the GoL for approval.

In June 2008, the GoL signed a build, operate and transfer (BOT) agreement with Region Oil to develop the project. The agreement states that LHSE would own 20% share and 80% will be owned by Region Oil and the dam would be operated for 30 years by Region Oil.

In February 2013, Laos authorities signed a project development agreement with Russia’s Regional Oil for the project.

In April 2014, the Asian Development Bank (ADB) considered supporting the construction of transmission lines to allow for the export of the power generated from the project to Vietnam, but it cited concern over the lack of project compliance with basic social and environmental standards.

In November 2015, Ratchaburi Electricity Generating Holding PCL (RATCH) signed a development agreement with Lao World Engineering & Construction Co. to jointly invest in the development. RATCH is undertaking a feasibility study before its investment in the development.


The project involves the construction of a 400MW hydropower plant on the mainstream Sekong River, which is the largest sub-basin of the Mekong River in Laos.

The US$730 million project also includes the following:

1. Construction of a 180m high dam

2. Construction of a powerhouse

3. Construction of a substation

4. Construction of access roads

5. Construction of a 95km long reservoir

6. Installation of generators and transformers

7. Installation of turbines

8. Laying of transmission lines

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1.Key Statistics
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5.Tender Information
8.Latest update
10.Key Contacts
11.General News, Project News

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