Hydropower in the Mekong River Basin

Ubol Ratana Dam in Thailand

The estimated hydropower potential of Mekong River Basin about 58,930 Megawatts (MW).[1][2][3] As of February 2024, there are an estimated 167 Hydropower Plants (HPPs) in the Mekong, with a combined installed capacity of some 36,376.3 MW. An additional 20 HPPs are currently under construction and at various stages of completion. These have a combined installed capacity of an additional 4,535.5 MW.

The single most significant impact on the use of water and its management in the Mekong Region is hydropower.[4] These developments in the Mekong River Basin have resulted in substantial environmental and social impacts, which are summarised below. These have fuelled controversy [5] and hydropower is a prominent part of the discussion around the river, its basin, and its management. This debate occurs in both the academic literature, as well as the media, and is a focus for many activist groups.[6][7]

The countries that share the Mekong River Basin have all sought the large-scale infrastructural development of its waters. As part of China's Great Western Development program, large-scale hydropower development in China's Yunnan Province has been substantial,[8][9][10] on the Mekong, the Jinsha, and the Red rivers. Large amounts of Yunnan's hydropower is exported eastwards to energy intensive load centres, such as Guangxi and Guangdong.[11] Yunnan, however, has large electricity over-supply problems, which has led to significant hydropower curtailment.[11][12]

The Lao government has also prioritized hydropower development, primarily as an export commodity. In 2021, almost 82% of Lao electricity was exported, mostly to Thailand.[13] Power production (from all sources, including hydropower) contributed 12.8% to national GDP in 2022, while electricity exports comprised almost 29% of total export values in the same year,[14] and investments in electricity production represented 79% of total foreign direct investment in 2021.[15]

Most of Cambodia's hydropower has been developed in the southwest of the country, outside of the  Mekong River Basin.[16][17] Its largest HPP, the Lower Sesan 2 is, however, within the Mekong River Basin, and generates some 20% of the country's electricity.[18] Cambodia has ruled out developing hydropower on the Mekong mainstream,[19] but multiple dams are planned for construction in Mekong tributary catchments. Cambodia also exports electricity directly from the Don Sahong HPP, a southern Lao dam located on the Mekong mainstream.[20]

In Thailand, little technically exploitable hydropower potential remains in its parts of the Mekong River Basin. Most of its HPPs were developed in the 1980s and 1990s, and accompanied by large-scale irrigation infrastructure development as part of the massive Kong-Chi-Mun Project,[21] more recently rearticulated as the Khong-Loei-Chi-Mun Project [22][23] Large-scale energy infrastructure in Thailand has been met with strong resistance - for example, the  Assembly of the Poor's opposition to the Pak Mun HPP, the last dam to be commissioned in Thailand. This has forced Thailand to export the social and environmental externalities of hydropower construction and operation to neighbouring states.[24][25]

While there are multiple HPPs planned for Myanmar parts of the Mekong River Basin,[26] years of political instability have generally impended hydropower development.

Vietnam's Mekong hydropower development is concentrated in its Central Highlands. It does not appear as if any technically-exploitable hydropower potential remains. Here, hydropower has also been accompanied by significant irrigation development. Vietnam's hydropower investments in this area includes sizeable dams on two key Mekong tributaries, the Sesan and the Srepok rivers.

## Mekong mainstream hydropower plants

[edit]

HPPs on the Mekong mainstream have aroused particular environmental concerns.[27][28] The majority of these are based in China's Yunnan Province. Table 1 below indicates the status of each of these HPPs.

Table 1: Hydropower plants on the Mekong mainstream[29]

Project | Country | Location | COD | Installed capacity (MW) | Status

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|
|
|
|

Sambor |  | 12°47′13″N 105°56′19″E﻿ / ﻿12.786849°N 105.938582°E﻿ / 12.786849; 105.938582﻿ (Sambor HPP) | N/A | 2,600 | Cancelled
Stung Treng |  | 13°34′31″N 105°59′00″E﻿ / ﻿13.575317°N 105.98345°E﻿ / 13.575317; 105.98345﻿ (Stung Treng HPP) | N/A | 980 | Cancelled
Angsai |  | 32°28′00″N 95°23′39″E﻿ / ﻿32.466805°N 95.394246°E﻿ / 32.466805; 95.394246﻿ (Angsai HPP) | ? | 55 | Planned
Baita |  | 28°58′51″N 98°37′36″E﻿ / ﻿28.980898°N 98.626669°E﻿ / 28.980898; 98.626669﻿ (Baita HPP) | ? | ? | Planned
Banda |  | 30°12′00″N 97°56′01″E﻿ / ﻿30.2°N 97.93365°E﻿ / 30.2; 97.93365﻿ (Banda HPP) | ? | 1,000 | Planned
Bangduo |  | 29°28′11″N 98°23′41″E﻿ / ﻿29.469708°N 98.394729°E﻿ / 29.469708; 98.394729﻿ (Bangduo HPP) | ? | 720 | Planned
Dachaoshan |  | 24°01′30″N 100°22′13″E﻿ / ﻿24.024947°N 100.3703°E﻿ / 24.024947; 100.3703﻿ (Dachaoshan HPP) | 2003 | 1,350 | Commissioned
Dahuaqiao |  | 26°18′29″N 99°08′21″E﻿ / ﻿26.308096°N 99.139288°E﻿ / 26.308096; 99.139288﻿ (Dahuaqiao HPP) | 2018 | 920 | Commissioned
Dongzhong |  | 31°52′22″N 96°59′24″E﻿ / ﻿31.872777°N 96.99°E﻿ / 31.872777; 96.99﻿ (Dahuaqiao HPP) | ? | 108 | Planned
Ganlanba |  | 21°50′38″N 100°56′17″E﻿ / ﻿21.843867°N 100.937917°E﻿ / 21.843867; 100.937917﻿ (Ganlanba HPP) | ? | 155 | Planned
Gongguoqiao |  | 25°35′09″N 99°20′08″E﻿ / ﻿25.585917°N 99.335567°E﻿ / 25.585917; 99.335567﻿ (Gongguoqiao HPP) | 2012 | 900 | Commissioned
Guoduo |  | 31°31′45″N 97°11′29″E﻿ / ﻿31.529089°N 97.191279°E﻿ / 31.529089; 97.191279﻿ (Guoduo HPP) | 2015 | 160 | Commissioned
Guonian |  | 28°19′09″N 98°52′06″E﻿ / ﻿28.319211°N 98.868424°E﻿ / 28.319211; 98.868424﻿ (Guonian HPP) | N/A | 1,200 | Cancelled
Gushui |  | 28°36′31″N 98°44′46″E﻿ / ﻿28.608683°N 98.746133°E﻿ / 28.608683; 98.746133﻿ (Gushui HPP) | ? | 2,600 | Planned
Huangdeng |  | 26°32′54″N 99°06′46″E﻿ / ﻿26.548199°N 99.112669°E﻿ / 26.548199; 99.112669﻿ (Huangdeng HPP) | 2017 | 1,900 | Commissioned
Jinghong |  | 22°03′12″N 100°45′59″E﻿ / ﻿22.053206°N 100.766478°E﻿ / 22.053206; 100.766478﻿ (Jinghong HPP) | 2009 | 1,750 | Commissioned
Lidi |  | 27°50′53″N 99°01′50″E﻿ / ﻿27.848016°N 99.030555°E﻿ / 27.848016; 99.030555﻿ (Lidi HPP) | 2019 | 420 | Commissioned
Lin Chang |  | 31°10′49″N 97°11′07″E﻿ / ﻿31.1804°N 97.1852°E﻿ / 31.1804; 97.1852﻿ (Lin Chang HPP) | ? | 72 | Planned
Longqingxia |  | 32°53′03″N 95°21′01″E﻿ / ﻿32.884167°N 95.350283°E﻿ / 32.884167; 95.350283﻿ (Longqingxia HPP) | 2006 | 2.5 | Commissioned
Manwan |  | 24°37′20″N 100°26′55″E﻿ / ﻿24.622086°N 100.448544°E﻿ / 24.622086; 100.448544﻿ (Manwan HPP) | 1995 | 1,570 | Commissioned
Mengsong |  | 21°46′49″N 101°08′51″E﻿ / ﻿21.780267°N 101.147367°E﻿ / 21.780267; 101.147367﻿ (Mengsong HPP) | N/A | 600 | Cancelled
Miaowei |  | 25°51′15″N 99°09′47″E﻿ / ﻿25.854121°N 99.163155°E﻿ / 25.854121; 99.163155﻿ (Miaowei HPP) | 2017 | 1,400 | Commissioned
Nuozhadu |  | 22°38′32″N 100°26′11″E﻿ / ﻿22.642128°N 100.436336°E﻿ / 22.642128; 100.436336﻿ (Nuozhadu HPP) | 2014 | 5,850 | Commissioned
Quzika |  | 30°02′23″N 97°53′22″E﻿ / ﻿30.039854°N 97.889503°E﻿ / 30.039854; 97.889503﻿ (Quzika HPP) | ? | 405 | Planned
Ru Mei |  | 29°39′00″N 98°20′52″E﻿ / ﻿29.649933°N 98.3477°E﻿ / 29.649933; 98.3477﻿ (Ru Mei HPP) | ? | 2,100 | Planned
Sidige |  | 30°59′06″N 97°20′20″E﻿ / ﻿30.985°N 97.339°E﻿ / 30.985; 97.339﻿ (Cege HPP) | ? | 129 | Planned
Tuoba |  | 27°11′39″N 99°06′27″E﻿ / ﻿27.194231°N 99.107516°E﻿ / 27.194231; 99.107516﻿ (Tuoba HPP) | 2024 | 1,400 | Commissioned
Wunonglong |  | 27°55′57″N 98°56′00″E﻿ / ﻿27.932554°N 98.9333°E﻿ / 27.932554; 98.9333﻿ (Wunonglong HPP) | 2018 | 990 | Commissioned
Xiaowan |  | 24°42′15″N 100°05′29″E﻿ / ﻿24.7042226°N 100.091255°E﻿ / 24.7042226; 100.091255﻿ (Xiaowan HPP) | 2010 | 4,200 | Commissioned
Yue Long |  | 30°52′05″N 97°20′50″E﻿ / ﻿30.868008°N 97.347124°E﻿ / 30.868008; 97.347124﻿ (Yue Long HPP) | 2030 | 100 | Planned
Ban Koum |  | 15°25′04″N 105°35′15″E﻿ / ﻿15.417881°N 105.587364°E﻿ / 15.417881; 105.587364﻿ (Ban Koum HPP) | 2030 | 1,872 | Planned
Don Sahong |  | 13°57′22″N 105°57′51″E﻿ / ﻿13.956223°N 105.964247°E﻿ / 13.956223; 105.964247﻿ (Don Sahong HPP) | 2020 | 240 | Commissioned
Luang Prabang |  | 20°04′00″N 102°11′32″E﻿ / ﻿20.06663°N 102.192339°E﻿ / 20.06663; 102.192339﻿ (Luang Prabang HPP) | 2030 | 1,460 | Under construction
Pak Chom |  | 18°12′04″N 102°03′02″E﻿ / ﻿18.201038°N 102.050588°E﻿ / 18.201038; 102.050588﻿ (Pak Chom HPP) | ? | 1,079 | Planned
Pak Beng |  | 19°50′58″N 101°01′10″E﻿ / ﻿19.849455°N 101.019507°E﻿ / 19.849455; 101.019507﻿ (Pak Beng HPP) | 2033 | 912 | Planned
Pak Lay |  | 18°24′05″N 101°35′01″E﻿ / ﻿18.401361°N 101.58362°E﻿ / 18.401361; 101.58362﻿ (Pak Lay HPP) | 2029 | 728 | Planned
Phoug Noi |  | 15°03′01″N 105°50′55″E﻿ / ﻿15.050186°N 105.848498°E﻿ / 15.050186; 105.848498﻿ (Phoug Noi HPP) | 2029 | 728 | Planned
Sanakham |  | 17°49′45″N 101°33′25″E﻿ / ﻿17.829183°N 101.556969°E﻿ / 17.829183; 101.556969﻿ (Sanakham HPP) | 2028 | 684 | Planned. As of Q4 2024, "the government [is being urged] to delay the public hearing process", according to media.[30]
Thako |  | 13°57′33″N 105°59′17″E﻿ / ﻿13.959072°N 105.988047°E﻿ / 13.959072; 105.988047﻿ (Thako HPP) | N/A | 86-172 | Cancelled
Xayaburi |  | 19°15′14″N 101°48′49″E﻿ / ﻿19.254006°N 101.813699°E﻿ / 19.254006; 101.813699﻿ (Xayaburi HPP) | 2019 | 1,285 | Commissioned

Notes: COD = Commercial Operating Date; N/A = Not Applicable

## Existing hydropower infrastructure in the Mekong River Basin

[edit]

Table 2: Commissioned dams in the Mekong River Basin (15 MW installed capacity and above)[29]

Project | Country | River | Location | COD | Installed capacity (MW) | Mean Annual Energy (GWh) | Height (m) | Crest length (m) | Total storage (million m3) | Max reservoir area (km2)

|
|
|
|
|
|
|
|
|
|

Lower Sesan 2 |  | Sesan | 13°33′05″N 106°15′50″E﻿ / ﻿13.551408°N 106.263841°E﻿ / 13.551408; 106.263841﻿ (Lower Sesan 2 HPP) | 2018 | 400 | 2,312 | 45 | 7,729 | 1,790 | 335
Dachaoshan |  | Mekong | 24°01′30″N 100°22′13″E﻿ / ﻿24.024947°N 100.3703°E﻿ / 24.024947; 100.3703﻿ (Dachaoshan HPP) | 2003 | 1,350 | 5,500 | 115 | 481 | 890 | 26.25
Dahuaqiao |  | Mekong | 26°18′29″N 99°08′21″E﻿ / ﻿26.308096°N 99.139288°E﻿ / 26.308096; 99.139288﻿ (Dahuaqiao HPP) | 2018 | 920 | 4,070 | 106 | 231.5 | 293 |
Ganlanba |  | Mekong | 21°50′38″N 100°56′17″E﻿ / ﻿21.843867°N 100.937917°E﻿ / 21.843867; 100.937917﻿ (Ganlanba HPP) | 2015 | 155 | 1,177 | 60.5 | 458 | 577 | 58
Gongguoqiao |  | Mekong | 25°35′09″N 99°20′08″E﻿ / ﻿25.585917°N 99.335567°E﻿ / 25.585917; 99.335567﻿ (Gongguoqiao HPP) | 2012 | 900 | 4,041 | 105 | 356 | 316 | 343
Guoduo |  | Mekong | 31°31′45″N 97°11′29″E﻿ / ﻿31.529089°N 97.191279°E﻿ / 31.529089; 97.191279﻿ (Guoduo HPP) | 2015 | 160 | 823 | 93 | 235.5 | 83 |
Huangdeng |  | Mekong | 26°32′54″N 99°06′46″E﻿ / ﻿26.548199°N 99.112669°E﻿ / 26.548199; 99.112669﻿ (Huangdeng HPP) | 2017 | 1,900 | 8,578 | 203 | 457 | 1,613 |
Jinfeng |  | Nan La He | 21°35′31″N 101°13′30″E﻿ / ﻿21.592026°N 101.225135°E﻿ / 21.592026; 101.225135﻿ (Jinfeng HPP) | 1998 | 16 | 64.3 | 45 |  | 19.48 |
Jinghong |  | Mekong | 22°03′12″N 100°45′59″E﻿ / ﻿22.053206°N 100.766478°E﻿ / 22.053206; 100.766478﻿ (Jinghong HPP) | 2009 | 1,750 | 5,570 | 108 | 705.5 | 1,140 | 510
Jinhe |  | Jin He | 30°48′22″N 97°19′59″E﻿ / ﻿30.806181°N 97.332926°E﻿ / 30.806181; 97.332926﻿ (Jinhe HPP) | 2004 | 60 | 367 | 34 | 68.4 | 4.27 |
Laoyinyan |  | Gua Lan Zi He/Shun Dian He | 24°28′09″N 99°49′03″E﻿ / ﻿24.469128°N 99.81754°E﻿ / 24.469128; 99.81754﻿ (Laoyinyan HPP) | 1997 | 16 |  | 4.2 |  | 1,092 |
Lidi |  | Mekong | 27°50′53″N 99°01′50″E﻿ / ﻿27.848016°N 99.030555°E﻿ / 27.848016; 99.030555﻿ (Lidi HPP) | 2019 | 420 | 1,753 | 75 | 346.4 | 75 | 3.7
Luozhahe 1 |  | Luo Zha He | 24°30′19″N 100°27′06″E﻿ / ﻿24.505207°N 100.451749°E﻿ / 24.505207; 100.451749﻿ (Luozhahe 1 HPP) | 2018 | 30 | 135 | 59 |  | 14.33 |
Luozhahe 2 |  | Luo Zha He | 24°29′13″N 100°24′08″E﻿ / ﻿24.486867°N 100.402128°E﻿ / 24.486867; 100.402128﻿ (Luozhahe 2 HPP) | 2016{ | 50 | 225 | 71 |  | 3,391 |
Manwan |  | Mekong | 24°37′20″N 100°26′55″E﻿ / ﻿24.622086°N 100.448544°E﻿ / 24.622086; 100.448544﻿ (Manwan HPP) | 1995 | 1,570 | 6,710 | 132 | 418 | 920 | 415
Miaowei |  | Mekong | 25°51′15″N 99°09′47″E﻿ / ﻿25.854121°N 99.163155°E﻿ / 25.854121; 99.163155﻿ (Miaowei HPP) | 2017 | 1,400 | 5,999 | 140 |  | 660 |
Nanhe 1 |  | Luo Zha He | 24°20′33″N 100°00′44″E﻿ / ﻿24.342442°N 100.012183°E﻿ / 24.342442; 100.012183﻿ (Nanhe 1 HPP) | 2009 | 40 | 170 | 56.8 | 148 | 11.36 |
Nanhe 2 |  | Luo Zha He | 24°22′38″N 100°03′00″E﻿ / ﻿24.377086°N 100.050098°E﻿ / 24.377086; 100.050098﻿ (Nanhe 2 HPP) | ? | 25 | 100 |  |  |  |
Nuozhadu |  | Mekong | 22°38′32″N 100°26′11″E﻿ / ﻿22.642128°N 100.436336°E﻿ / 22.642128; 100.436336﻿ (Nuozhadu HPP) | 2014 | 5,850 | 23,912 | 262 | 608 | 23,703 | 320
Tuoba |  | Mekong | 27°11′39″N 99°06′27″E﻿ / ﻿27.194231°N 99.107516°E﻿ / 27.194231; 99.107516﻿ (Tuoba HPP) | 2024 | 1,400 | Commissioned
Wunonglong |  | Mekong | 27°55′57″N 98°56′00″E﻿ / ﻿27.932554°N 98.9333°E﻿ / 27.932554; 98.9333﻿ (Wunonglong HPP) | 2018 | 990 | 4,116 | 138 | 247 | 284 |
Xiaowan |  | Mekong | 24°42′15″N 100°05′29″E﻿ / ﻿24.7042226°N 100.091255°E﻿ / 24.7042226; 100.091255﻿ (Xiaowan HPP) | 2010 | 4,200 | 18,990 | 295 | 893 | 14,560 | 194
Xi'er He 1 |  | Xi'er He | 25°34′44″N 100°12′09″E﻿ / ﻿25.578801°N 100.202419°E﻿ / 25.578801; 100.202419﻿ (Xi'er He 1 HPP) | 1979 | 105 | 440 |  |  |  |
Xi'er He 2 |  | Xi'er He | 25°33′43″N 100°07′52″E﻿ / ﻿25.561991°N 100.131191°E﻿ / 25.561991; 100.131191﻿ (Xi'er He 2 HPP) | 1987 | 50 |  | 37 | 122 | 0.2 |
Xi'er He 3 |  | Xi'er He | 25°33′31″N 100°06′28″E﻿ / ﻿25.558584°N 100.107878°E﻿ / 25.558584; 100.107878﻿ (Xi'er He 3 HPP) | 1988 | 50 | 223 | 21 |  |  |
Xi'er He 4 |  | Xi'er He | 25°34′35″N 100°03′56″E﻿ / ﻿25.576262°N 100.065574°E﻿ / 25.576262; 100.065574﻿ (Xi'er He 4 HPP) | 1971 | 50 |  |  |  | 14 |
XunCun |  | Hei Hui Jiang | 25°25′19″N 99°59′36″E﻿ / ﻿25.421835°N 99.993301°E﻿ / 25.421835; 99.993301﻿ (XunCun HPP) | 1999 | 78 | 345 | 67 | 165 | 74 |
Mong Wa |  | Nam Lwe | 21°23′49″N 100°19′33″E﻿ / ﻿21.396967°N 100.32584°E﻿ / 21.396967; 100.32584﻿ (Mong Wa HPP) | 2017 | 66 | 330.45 | 51 |  | 78 | 8.01
Don Sahong |  | Mekong | 13°57′22″N 105°57′51″E﻿ / ﻿13.956223°N 105.964247°E﻿ / 13.956223; 105.964247﻿ (Don Sahong HPP) | 2020 | 240 | 2,000 | 25 | 6,800 | 25 | 2.2
Houay Ho |  | Houayho/Xekong | 15°03′34″N 106°45′52″E﻿ / ﻿15.059464°N 106.764377°E﻿ / 15.059464; 106.764377﻿ (Houayho HPP) | 1999 | 152 | 450 | 79 |  | 3,530 | 37
Houay La Nge |  | Houay La-Nge | 15°46′30″N 107°03′18″E﻿ / ﻿15.774865°N 107.054896°E﻿ / 15.774865; 107.054896﻿ (Houay La Nge HPP) | 2023 | 60 | 290 | 58 | 179 | 14 | 93.6
Houay Lamphan Gnai |  | Xekong | 15°21′23″N 106°29′56″E﻿ / ﻿15.356495°N 106.498949°E﻿ / 15.356495; 106.498949﻿ (Houay Lamphan Gnai HPP) | 2015 | 84.8 | 480 | 77 | 74.5 | 140 | 9
Houay Por |  | Houay Por | 15°32′44″N 106°15′24″E﻿ / ﻿15.545605°N 106.256763°E﻿ / 15.545605; 106.256763﻿ (Houay Por HPP) | 2018 | 15 | 75 | 6 |  | 0.76 |
Lower Houay Lam Phanh |  | Houay Lamphan | 15°19′17″N 106°37′48″E﻿ / ﻿15.321515°N 106.630123°E﻿ / 15.321515; 106.630123﻿ (Lower Houay Lam Phanh HPP) | 2022 | 15 | 68 | 55 | 523 | 73.9 |
Nam Ao |  | Nam Ao | 19°09′39″N 103°16′59″E﻿ / ﻿19.160876°N 103.283107°E﻿ / 19.160876; 103.283107﻿ (Nam Ao HPP) | 2023 | 15 | 92 | 26 | 130 | 52 | 4.9
Nam Beng |  | Nam Beng | 19°56′47″N 101°14′15″E﻿ / ﻿19.946436°N 101.237563°E﻿ / 19.946436; 101.237563﻿ (Nam Beng HPP) | 2014 | 36 | 145 | 25.5 | 84.8 | 3,611 | 0.7
Nam Che 1 |  | Nam Che | 19°03′17″N 103°30′49″E﻿ / ﻿19.054645°N 103.513536°E﻿ / 19.054645; 103.513536﻿ (Nam Che 1 HPP) | 2019 | 16.8 |  | 23 | 50 |  |
Nam Chien 1 |  | Nam Che | 19°08′43″N 103°33′26″E﻿ / ﻿19.145395°N 103.557259°E﻿ / 19.145395; 103.557259﻿ (Nam Chien 1 HPP) | 2018 | 104 | 448.2 | 68.8 | 367 | 14 |
Nam Houng 1 |  | Nam Houng | 19°11′24″N 101°48′23″E﻿ / ﻿19.189914°N 101.806322°E﻿ / 19.189914; 101.806322﻿ (Nam Young 1 HPP) | 2023 | 15 | 57 |  |  |  | 1.52
Nam Khan 2 |  | Nam Khan | 19°41′07″N 102°22′11″E﻿ / ﻿19.685364°N 102.369791°E﻿ / 19.685364; 102.369791﻿ (Nam Khan 2 HPP) | 2015 | 130 | 558 | 160 | 405 |  | 30.5
Nam Khan 3 |  | Nam Khan | 19°44′49″N 102°13′22″E﻿ / ﻿19.747016°N 102.222793°E﻿ / 19.747016; 102.222793﻿ (Nam Khan 3 HPP) | 2016 | 88 | 480 | 77 | 74.5 | 140 | 9
Nam Kong 1 |  | Nam Kong | 14°32′47″N 106°44′27″E﻿ / ﻿14.546513°N 106.740933°E﻿ / 14.546513; 106.740933﻿ (Nam Kong HPP 1) | 2021 | 160 | 649 | 87 | 386 | 679 | 21.8
Nam Kong 2 |  | Nam Kong | 14°29′41″N 106°51′24″E﻿ / ﻿14.494672°N 106.856669°E﻿ / 14.494672; 106.856669﻿ (Nam Kong HPP 2) | 2018 | 66 | 264 | 50 | 210 | 71.4 | 4.2
Nam Kong 3 |  | Nam Kong | 14°33′59″N 106°54′45″E﻿ / ﻿14.566338°N 106.912551°E﻿ / 14.566338; 106.912551﻿ (Nam Kong 3 HPP) | 2021 | 54 | 204 | 65 | 500 | 471 | 32
Nam Leuk |  | Nam Leuk/Nam Ngum | 18°26′15″N 102°56′48″E﻿ / ﻿18.437406°N 102.94675°E﻿ / 18.437406; 102.94675﻿ (Nam Leuk HPP) | 2000 | 60 | 215 | 51.5 | 800 | 185 | 17.2
Nam Lik 1 |  | Nam Lik | 18°37′10″N 102°23′14″E﻿ / ﻿18.619438°N 102.387252°E﻿ / 18.619438; 102.387252﻿ (Nam Lik 1 HPP) | 2019 | 64 | 256 | 36.5 | 72 |  | 22.3
Nam Lik 1-2 |  | Nam Lik | 18°47′38″N 102°07′00″E﻿ / ﻿18.793782°N 102.116714°E﻿ / 18.793782; 102.116714﻿ (Nam Lik 1-2 HPP) | 2010 | 100 | 435 | 103 | 328 | 11 | 24.4
Nam Mang 1 |  | Nam Mang | 18°32′03″N 103°11′47″E﻿ / ﻿18.53423°N 103.196286°E﻿ / 18.53423; 103.196286﻿ (Nam Mang 1 HPP) | 2016 | 64 | 225 | 70 | 280 | 16.5 | 0.148
Nam Mang 3 |  | Nam Gnogn | 18°20′58″N 102°45′55″E﻿ / ﻿18.349383°N 102.765244°E﻿ / 18.349383; 102.765244﻿ (Nam Mang 3 HPP) | 2004 | 40 | 150 | 28 | 151 | 49 | 10
Nam Ngiep 1 |  | Nam Ngiep | 18°38′45″N 103°33′08″E﻿ / ﻿18.645828°N 103.552329°E﻿ / 18.645828; 103.552329﻿ (Nam Ngiep 1 HPP) | 2019 | 272 | 1,546 | 167 | 530 | 1,192 | 67
Nam Ngiep 1 (DS) |  | Nam Ngiep | 18°38′53″N 103°34′18″E﻿ / ﻿18.647966°N 103.571591°E﻿ / 18.647966; 103.571591﻿ (Nam Ngiep 1 (DS) HPP) | 2019 | 18 | 105 | 20 | 90 | 4.6 | 1.27
Nam Ngiep 2 |  | Nam Ngiep | 19°14′36″N 103°17′02″E﻿ / ﻿19.243328°N 103.283818°E﻿ / 19.243328; 103.283818﻿ (Nam Ngiep 2 HPP) | 2015 | 180 | 732 | 70.5 |  | 163 |
Nam Ngiep 2B |  | Nam Ngiep | 19°09′21″N 103°20′46″E﻿ / ﻿19.155918°N 103.346031°E﻿ / 19.155918; 103.346031﻿ (Nam Ngiep 2B HPP) | 2015 | 18 | 76 |  |  |  |
Nam Ngiep 3A |  | Nam Ngiep | 19°14′37″N 103°17′02″E﻿ / ﻿19.243546°N 103.283913°E﻿ / 19.243546; 103.283913﻿ (Nam Ngiep 3A HPP) | 2014 | 44 | 144 | 30 | 110 | 13.85 | 1.8
Nam Ngum 1 |  | Nam Ngum | 18°31′52″N 102°32′51″E﻿ / ﻿18.531068°N 102.547577°E﻿ / 18.531068; 102.547577﻿ (Nam Ngum 1 HPP) | 1971 | 315 | 1,455 | 70 | 468 | 4,700 | 370
Nam Ngum 2 |  | Nam Ngum | 18°45′19″N 102°46′35″E﻿ / ﻿18.755374°N 102.776476°E﻿ / 18.755374; 102.776476﻿ (Nam Ngum 2 HPP) | 2011 | 615 | 2,300 | 181.5 | 421 | 3,590 | 122.2
Nam Ngum 5 |  | Nam Ngum | 19°21′22″N 102°37′16″E﻿ / ﻿19.356095°N 102.621196°E﻿ / 19.356095; 102.621196﻿ (Nam Ngum 5 HPP) | 2012 | 120 | 507 | 104.5 | 258 | 314 | 14.6
Nam Ou 1 |  | Nam Ou | 20°05′18″N 102°15′55″E﻿ / ﻿20.0883°N 102.265379°E﻿ / 20.0883; 102.265379﻿ (Nam Ou 1 HPP) | 2019 | 160 | 710 | 65 | 442 | 89.1 | 9.56
Nam Ou 2 |  | Nam Ou | 20°24′42″N 102°28′22″E﻿ / ﻿20.411698°N 102.472817°E﻿ / 20.411698; 102.472817﻿ (Nam Ou 2 HPP) | 2016 | 120 | 546 | 55 | 352 | 121.7 | 15.7
Nam Ou 3 |  | Nam Ou | 20°41′43″N 102°39′55″E﻿ / ﻿20.695251°N 102.665404°E﻿ / 20.695251; 102.665404﻿ (Nam Ou 3 HPP) | 2020 | 150 | 685 | 72 | 340 | 168.6 | 13.26
Nam Ou 4 |  | Nam Ou | 21°07′13″N 102°29′39″E﻿ / ﻿21.120153°N 102.494173°E﻿ / 21.120153; 102.494173﻿ (Nam Ou 4 HPP) | 2020 | 116 | 524 | 47 | 300 | 124 | 9.37
Nam Ou 5 |  | Nam Ou | 21°24′41″N 102°20′39″E﻿ / ﻿21.411349°N 102.344263°E﻿ / 21.411349; 102.344263﻿ (Nam Ou 5 HPP) | 2016 | 240 | 1,049 | 74 |  | 335 | 17.22
Nam Ou 6 |  | Nam Ou | 21°24′41″N 102°20′39″E﻿ / ﻿21.411349°N 102.344263°E﻿ / 21.411349; 102.344263﻿ (Nam Ou 6 HPP) | 2016 | 180 | 739 | 88 |  | 409 | 17.01
Nam Ou 7 |  | Nam Ou | 22°04′40″N 102°15′52″E﻿ / ﻿22.07779°N 102.264436°E﻿ / 22.07779; 102.264436﻿ (Nam Ou 7 HPP) | 2020 | 190 | 811 | 147 | 825 | 1,494 | 38.16
Nam Pha Gnai |  | Nam Pha Gnai | 19°00′48″N 102°15′52″E﻿ / ﻿19.013318°N 102.264436°E﻿ / 19.013318; 102.264436﻿ (Nam Pha Gnai HPP) | 2016 | 19.2 | 130 | 65 | 148 |  | 1.5
Nam Phay |  | Nam Phay | 19°06′34″N 102°45′27″E﻿ / ﻿19.109357°N 102.757461°E﻿ / 19.109357; 102.757461﻿ (Nam Phay HPP) | 2018 | 86 | 419.5 |  |  |  | 18.92
Nam San 3A |  | Nam San | 19°07′45″N 103°39′42″E﻿ / ﻿19.129193°N 103.661752°E﻿ / 19.129193; 103.661752﻿ (Nam San 3A HPP) | 2016 | 69 | 278.4 | 75 | 350 | 123 | 8.5
Nam San 3B |  | Nam San | 19°05′08″N 103°37′12″E﻿ / ﻿19.085633°N 103.619938°E﻿ / 19.085633; 103.619938﻿ (Nam San 3B HPP) | 2015 | 45 | 198 |  |  |  |
Nam Tha 1 |  | Nam Tha | 20°14′58″N 100°53′33″E﻿ / ﻿20.249467°N 100.892433°E﻿ / 20.249467; 100.892433﻿ (Nam Tha 1 HPP) | 2018 | 168 | 759.4 | 93.7 | 349.2 | 1,755 | 113.9
Nam Tha Had Muak |  | Nam Tha | 20°14′34″N 100°42′44″E﻿ / ﻿20.24264°N 100.712302°E﻿ / 20.24264; 100.712302﻿ (Nam Tha 1 HPP) | 2022 | 37.5 | 102.67 |  |  |  |
Nam Theun 1 |  | Nam Theun | 18°21′24″N 104°08′53″E﻿ / ﻿18.356733°N 104.148017°E﻿ / 18.356733; 104.148017﻿ (Nam Theun 1 HPP) | 2022 | 650 | 2,561 | 177 | 771 | 2,772 | 93.6
Nam Theun 2 |  | Nam Theun/Xe Bangfai | 17°59′50″N 104°57′08″E﻿ / ﻿17.997353°N 104.952306°E﻿ / 17.997353; 104.952306﻿ (Nam Theun 2 HPP) | 2010 | 1,075 | 5,936 | 48 | 325 | 3,500 | 450
Theun-Hinboun |  | Nam Theun | 18°15′40″N 104°33′45″E﻿ / ﻿18.261005°N 104.562525°E﻿ / 18.261005; 104.562525﻿ (Theun-Hinboun Hydropower Plant) | 1998 | 220 | 1,645 | 48 | 810 | 1,300 | 49
Theun-Hinboun Expansion Project |  | Nam Gnouang | 18°17′50″N 104°38′10″E﻿ / ﻿18.297248°N 104.636171°E﻿ / 18.297248; 104.636171﻿ (Theun-Hinboun Expansion Project) | 2013 | 222 | 1,395 | 65 | 480 | 2,450 | 49
Xayaburi |  | Mekong | 19°15′14″N 101°48′49″E﻿ / ﻿19.254006°N 101.813699°E﻿ / 19.254006; 101.813699﻿ (Xayaburi HPP) | 2019 | 1,285 | 6,035 | 48 | 810 | 1,300 | 49
Xe Kaman 1 |  | Xe Kaman | 14°57′39″N 107°09′23″E﻿ / ﻿14.960724°N 107.156336°E﻿ / 14.960724; 107.156336﻿ (Xe Kaman 1 HPP) | 2018 | 290 | 1,096 | 120 | 185 | 4,804 | 149.8
Xe Kaman 3 |  | Xe Kaman | 15°25′31″N 107°21′45″E﻿ / ﻿15.425194°N 107.362611°E﻿ / 15.425194; 107.362611﻿ (Xe Kaman 3 HPP) | 2014 | 250 | 1,000 | 102 | 543 | 141.5 | 5.2
Xe Kaman-Sanxay |  | Xe Kaman | 14°53′20″N 107°07′02″E﻿ / ﻿14.888908°N 107.117133°E﻿ / 14.888908; 107.117133﻿ (Xe Kaman-Sanxay HPP) | 2018 | 32 | 131.2 | 28 | 180 |  | 1.76
Xe Lanong 1 |  | Xe Lanong | 16°21′23″N 106°14′19″E﻿ / ﻿16.356276°N 106.238749°E﻿ / 16.356276; 106.238749﻿ (Xe Lanong 1 HPP) | 2020 | 70 | 269.9 | 67.5 | 302 | 953 |
Xepian-Xenamnoy |  | Xepian/Xenamnoy | 15°01′34″N 106°37′39″E﻿ / ﻿15.026115°N 106.627369°E﻿ / 15.026115; 106.627369﻿ (Xepian-Xenamnoy HPP) | 2019 | 427 | 1,788 | 73 | 1,600 | 1,043 | 50.6
Xe Nam Noy - Xe Katam |  | Xenamnoi/Xekatam | 15°07′05″N 106°37′00″E﻿ / ﻿15.117928°N 106.616688°E﻿ / 15.117928; 106.616688﻿ (Xepian-Xenamnoy HPP) | 2016 | 20.1 | 83 |  |  |  |
Xeset 1 |  | Xeset | 15°29′31″N 106°16′43″E﻿ / ﻿15.49200°N 106.27867°E﻿ / 15.49200; 106.27867﻿ (Xeset 1 HPP) | 1994 | 45 | 154 | 18 | 124 |  |
Xeset 2 |  | Xeset | 15°24′14″N 106°16′49″E﻿ / ﻿15.403775°N 106.280332°E﻿ / 15.403775; 106.280332﻿ (Xeset 1 HPP) | 2009 | 76 | 309 | 26 | 144 |  |
Xeset 3 |  | Xe Don | 15°20′32″N 106°18′40″E﻿ / ﻿15.342113°N 106.31115°E﻿ / 15.342113; 106.31115﻿ (Xeset 3 HPP) | 2017 | 23 | 80 | 11 |  |  | 1.3
Chulabhorn |  | Nam Phrom | 16°32′11″N 101°39′00″E﻿ / ﻿16.536267°N 101.650036°E﻿ / 16.536267; 101.650036﻿ (Chulabhorn HPP) | 1972 | 40 | 93 | 70 | 700 | 165 | 31
Lam Ta Khong |  | Lam Ta Khong | 14°51′55″N 101°33′37″E﻿ / ﻿14.865175°N 101.560303°E﻿ / 14.865175; 101.560303﻿ (Lam Ta Khong HPP) | 1974 | 500 | 400 | 40.3 | 251 | 310 | 37
Pak Mun |  | Mun | 15°16′55″N 105°28′05″E﻿ / ﻿15.2818942°N 105.468058°E﻿ / 15.2818942; 105.468058﻿ (Pak Mun HPP) | 1994 | 136 | 280 | 17 | 300 |  |
Sirindhorn |  | Lam Dom Noi | 15°12′23″N 105°25′45″E﻿ / ﻿15.206339°N 105.429156°E﻿ / 15.206339; 105.429156﻿ (Siridhorn HPP) | 1971 | 36 | 86 | 42 | 940 | 1,967 | 288
Ubol Ratana |  | Nam Pong | 16°46′31″N 102°37′06″E﻿ / ﻿16.775394°N 102.618325°E﻿ / 16.775394; 102.618325﻿ (Ubol Ratana HPP) | 1966 | 25.2 | 57 | 35.1 | 885 | 2,559 | 410
A Luoi |  | A Sap | 16°11′51″N 107°09′43″E﻿ / ﻿16.197619°N 107.161897°E﻿ / 16.197619; 107.161897﻿ (A Luoi HPP) | 2012 | 170 | 686 | 49.5 | 208 |  |
Buon Kuop |  | Sre Pok | 12°31′30″N 107°55′33″E﻿ / ﻿12.52504°N 107.925762°E﻿ / 12.52504; 107.925762﻿ (Buon Kop HPP) | 2009 | 280 | 1,455 | 34 | 1,828 | 37 | 5.57
Buon Tua Sra |  | Se San/Krong Po Ko | 12°16′56″N 108°02′29″E﻿ / ﻿12.282116°N 108.041299°E﻿ / 12.282116; 108.041299﻿ (Buon Tua Srah HPP) | 2009 | 86 | 359 | 83 | 1,041 | 787 | 41
Dray Hlinh 2 |  | Sre Pok | 12°40′33″N 107°54′14″E﻿ / ﻿12.6757°N 107.903978°E﻿ / 12.6757; 107.903978﻿ (Dray Hinh 2 HPP) | 2007 | 16 | 85 |  |  |  |
Hòa Phú |  | Sre Pok | 12°38′59″N 107°54′33″E﻿ / ﻿12.64967°N 107.909128°E﻿ / 12.64967; 107.909128﻿ (Hòa Phú HPP) | 2014 | 29 | 132 | 12 | 384.5 | 5 | 1.6
Krông Nô 2 |  | Krong No | 12°15′16″N 108°21′20″E﻿ / ﻿12.254355°N 108.355469°E﻿ / 12.254355; 108.355469﻿ (Krông Nô 2 HPP) | 2016 | 30 | 109 |  |  |  | 9.3
Krông Nô 3 |  | Krong No | 12°15′16″N 108°21′20″E﻿ / ﻿12.254355°N 108.355469°E﻿ / 12.254355; 108.355469﻿ (Krông Nô 3 HPP) | 2016 | 18 | 63.5 | 42 | 260 | 20 | 1.75
Plei Krong |  | Se San/Krong Po Ko | 14°24′30″N 107°51′47″E﻿ / ﻿14.408227°N 107.862991°E﻿ / 14.408227; 107.862991﻿ (Plei Krong HPP) | 2008 | 100 | 479 | 65 | 745 | 1,049 | 53
Sesan 3 |  | Se San | 14°12′57″N 107°43′19″E﻿ / ﻿14.215816°N 107.722061°E﻿ / 14.215816; 107.722061﻿ (Sesan 3 HPP) | 2006 | 260 | 1,224 | 79 |  |  | 6.4
Sesan 3A |  | Se San | 14°06′23″N 107°39′28″E﻿ / ﻿14.106475°N 107.657753°E﻿ / 14.106475; 107.657753﻿ (Sesan 3A HPP) | 2007 | 96 |  |  |  |  |
Sesan 4 |  | Se San | 13°58′06″N 107°29′43″E﻿ / ﻿13.968252°N 107.49516°E﻿ / 13.968252; 107.49516﻿ (Sesan 4 HPP) | 2009 | 360 | 60 |  |  | 54 |
Sesan 4A |  | Se San | 13°56′00″N 107°28′01″E﻿ / ﻿13.933374°N 107.46683°E﻿ / 13.933374; 107.46683﻿ (Sesan 4 HPP) | 2009 | 360 | 60 |  |  | 54 |
Sre Pok 3 |  | Sre Pok | 12°45′08″N 107°52′36″E﻿ / ﻿12.752344°N 107.876769°E﻿ / 12.752344; 107.876769﻿ (Sre Pok 3 HPP) | 2009 | 220 | 52.5 |  |  |  |
Sre Pok 4 |  | Sre Pok | 12°48′26″N 107°51′19″E﻿ / ﻿12.807331°N 107.855308°E﻿ / 12.807331; 107.855308﻿ (Sre Pok 4 HPP) | 2009 | 600 | 329.3 | 155 | 860 | 114 | 150
Sre Pok 4A |  | Sre Pok | 12°53′36″N 107°48′44″E﻿ / ﻿12.893464°N 107.812294°E﻿ / 12.893464; 107.812294﻿ (Sre Pok 4A HPP) | 2014 | 308.35 |  |  |  |  | 4
Upper Kontum |  | Se San/Dak Bla/Dak Ngh | 14°41′39″N 108°13′48″E﻿ / ﻿14.694291°N 108.229879°E﻿ / 14.694291; 108.229879﻿ (Upper Kontum HPP) | 2011 | 250 | 1,056.4 | 73 | 392 | 174 | 7.08
Yali Falls |  | Se San | 14°13′39″N 107°49′47″E﻿ / ﻿14.227481°N 107.829597°E﻿ / 14.227481; 107.829597﻿ (Yali Falls HPP) | 2001 | 720 | 3,658.6 | 65 | 1,460 | 1,073 | 64.5
Yan-Tann-Sien |  | Yan-Tann-Sien | 12°09′10″N 108°22′43″E﻿ / ﻿12.152824°N 108.37866°E﻿ / 12.152824; 108.37866﻿ (Yan-Tann-Sien HPP) | 2010 | 19.5 | 79 |  |  |  |

Notes: COD = Commercial Operating Date

## Hydropower infrastructure under construction in the Mekong River Basin

[edit]

Table 3: Hydropower dams under construction in the Mekong River Basin (15 MW installed capacity and above)[29]

Project | Country | River | Location | COD | Installed capacity (MW) | Mean Annual Energy (GWh) | Height (m) | Crest length (m) | Total storage (million m3) | Max reservoir area (km2)

|
|
|
|
|
|
|
|
|
|

Pursat 1 |  | Pursat | 12°17′07″N 103°17′56″E﻿ / ﻿12.285408°N 103.298828°E﻿ / 12.285408; 103.298828﻿ (Pursat 1 Dam) | 2026 | 80 | 361 | 100 | 687 | 1,039 |
Charikou |  | Tsichu | 32°40′12″N 96°33′42″E﻿ / ﻿32.670005°N 96.561546°E﻿ / 32.670005; 96.561546﻿ (Charikou Dam) | ? | 54 |  | 121.4 | 198.48 | 421 |
Jiaoba |  | Dengqu | 29°34′46″N 98°18′22″E﻿ / ﻿29.579527°N 98.306028°E﻿ / 29.579527; 98.306028﻿ (Jiaoba Dam) | ? | 60 |  | 50 |  |  |
Houay Kaouane |  |  | 20°04′00″N 102°11′32″E﻿ / ﻿20.06663°N 102.192339°E﻿ / 20.06663; 102.192339﻿ (Houay Kaouane) | ? | 24 |  |  |  |  |
Luang Prabang |  | Mekong | 20°04′00″N 102°11′32″E﻿ / ﻿20.06663°N 102.192339°E﻿ / 20.06663; 102.192339﻿ (Luang Prabang Dam) | 2030 | 1,460 | 6,500 | 80 | 275 | 1,589.5 | 72.39
Nam Ang |  | Nam Ang | 15°07′21″N 107°06′31″E﻿ / ﻿15.122545°N 107.108512°E﻿ / 15.122545; 107.108512﻿ (Nam Ang Dam) | 2024 | 31 | 183.3 |  |  | 0.03 |
Nam Emoun |  | Nam Emoun | 15°34′27″N 106°58′10″E﻿ / ﻿15.5743°N 106.969395°E﻿ / 15.5743; 106.969395﻿ (Nam Emoun Dam) | 2025 | 131.5 | 460.59 | 29 | 127 | 0.07 | 0.16
Nam Hinboun 1 |  | Nam Hinboun | 17°43′42″N 104°34′17″E﻿ / ﻿17.728201°N 104.571382°E﻿ / 17.728201; 104.571382﻿ (Nam Hinboun 1 Dam) | 2024 | 15 | 79.74 | 33 | 70 |  |
Nam Hinboun 2 |  | Nam Hinboun | 18°01′25″N 104°25′30″E﻿ / ﻿18.023739°N 104.425006°E﻿ / 18.023739; 104.425006﻿ (Nam Hinboun 2 Dam) | ? | 30 | 155.2 | 38 |  |  | 2.57
Nam Ngao |  | Nam Hinboun | 20°23′54″N 100°25′55″E﻿ / ﻿20.398288°N 100.431852°E﻿ / 20.398288; 100.431852﻿ (Nam Ngao Dam) | ? | 15 | 81.1 |  | 69 | 438.6 | 2.57
Nam Ngum 3 |  | Nam Ngum | 19°05′03″N 102°52′44″E﻿ / ﻿19.084097°N 102.878817°E﻿ / 19.084097; 102.878817﻿ (Nam Ngum 3 Dam) | 2024 | 480 | 2,345 | 220 | 395 | 1,411 | 27.51
Nam Ngum 4 |  | Nam Ngum | 19°27′14″N 103°00′37″E﻿ / ﻿19.453804°N 103.010325°E﻿ / 19.453804; 103.010325﻿ (Nam Ngum 4 Dam) | 2024 | 240 | 872 | 74 | 110 |  |
Nam Phan (Bolevan) |  | Nam Phak | 15°04′32″N 106°08′21″E﻿ / ﻿15.075548°N 106.139196°E﻿ / 15.075548; 106.139196﻿ (Nam Phan Dam) | 2025 | 168 | 788 |  |  |  |
Nam Pot 1 |  | Nam Pot | 19°09′19″N 103°15′59″E﻿ / ﻿19.15518°N 103.266356°E﻿ / 19.15518; 103.266356﻿ (Nam Pot 1 Dam) | ? | 20 | 92 |  |  |  | 4.9
Xe Lanong 2 |  | Xe Lanong | 16°17′31″N 106°31′04″E﻿ / ﻿16.291893°N 106.517774°E﻿ / 16.291893; 106.517774﻿ (Xe Lanong 2 Dam) | ? | 35 | 143 | 55 |  |  |
Xekong A (DS) |  | Xekong | 14°35′57″N 106°33′15″E﻿ / ﻿14.599171°N 106.554175°E﻿ / 14.599171; 106.554175﻿ (Xekong A (DS)) | 2025 | 86 | 334.7 | 8.5 |  | 95.03 | 25.4
Xekong 4B (DS) |  | Xekong | 15°44′39″N 106°44′55″E﻿ / ﻿15.744284°N 106.748666°E﻿ / 15.744284; 106.748666﻿ (Xekong 4B) | 2027 | 175 | 801 | 117 |  | 1,004.7 | 22.4

Notes: COD = Commercial Operating Date

## Environmental impacts of Mekong hydropower

[edit]

The environmental impacts of Mekong hydropower development are generally well studied and understood. Some the key impacts of Mekong hydropower are as follows:

Hydrological impacts: about 75% of annual flows through the Mekong system occur between late June and early November,[31][32] which drives ecological productivity throughout the system.[33][34] This surge of water is known as the 'flood pulse' and dams (of all kinds) will contribute to its diminution. Wet season flows can be expected to reduce, while dry season flows can be expected to increase.[35] This has significant implications for the Mekong's ecology.

Fisheries impacts: the Mekong's fisheries are threatened in multiple ways, most importantly by dams and excessive fishing pressure.[36] Dams affect fisheries by:[37]

* Acting as barriers to fish migration - either as fish try to migrate upstream to spawn; or for trapping fish fry or eggs as these travel downstream.
* Interrupting natural flood cycles to which fish have evolved and adapted to over thousands of years.
* Riverbed hardening. Dams typically release water in bursts, which removes smaller sediments like silt, sand, and gravel, as well as aquatic plants and animals and debris from vegetation. As a result, the bedrock below the dam becomes exposed and loses its value as a fish habitat.
* Trapping sediment, a significant source of nutrition for fish.[38]
* Altering water temperature. Water released from a dam is typically colder than prevailing temperatures downstream of the dam. This has a direct impact on fish habitats and populations.
* Hydropeaking, which refers to the release of water from HPPs when demand is highest (usually during the day), and much smaller releases when demand is low. This also affects fisheries through the rapid alteration and high and low river flows. Globally, hydropeaking has been found to impact fish biodiversity, and fish community composition.[37][39][40]

The fisheries impact of all existing and planned mainstream dams will be most felt in Cambodia (which will experience three-quarters of the loss), while the balance will be experienced in Vietnam, Lao PDR and Thailand.[40] In terms of tonnages, this will represent a loss of between 580 and 750,000 Mt per year.[40]

In another study by the Mekong River Commission, fisheries assessments conducted in 2020 suggested that the annual finfish yield from the lower Mekong (i.e. those parts of the basin that fall within Cambodia, Laos, Thailand and Vietnam)) was between 1.51 and 1.71 million tonnes, while the harvest of other aquatic animals (OAAs) was approximately 443,000 tons. This is approximately 25-30% less than yield estimates conducted in 2000 and 2010. The estimated value of the fish catch varies from USD 7.13 billion to USD 8.37 billion annually. In addition, the estimated value of the OAA harvest is approximately USD 1.13 billion.[41]

Sediment impacts: in the Mekong, some 40% of the sediments that reach the Mekong Delta are derived from the Three Parallel Rivers area in Yunnan, while some 52% come from the Central Highlands of Vietnam.[42] The balance comes from those parts of the basin in northern Thailand, and the Tibetan gorges.[42][43] Sediment loads are lowest during the dry season and highest during the first months of the flood season, when loose sediments weathered during the dry season are washed into rivers.[42][44]

Although suspended sediment concentrations in the Mekong have been monitored since 1994, the ‘pre-disturbance’ sediment load is unknown. Nevertheless, studies can demonstrate very significant declines in the Mekong's sediment load since 2001. At Chiang Saen, sediment flows have decreased from about 85 million metric tonnes per year (Mt/yr) to 10.8 million Mt/yr, meaning that the sediment contributions from China to the Mekong mainstream has decreased to about 16% of all sediments in the Lower Mekong as compared to about 55% historically.[45] A similar trend is seen down-stream at Pakse, where average loads have decreased from 147 Mt/yr to 66 Mt/yr between 1994 and 2013.[45]

The declining sediment load has significant implications for the Mekong Delta, recharging sediments otherwise washed away by the sea, consumed by sea-level rise, or in combination with land subsidence. Studies of the possible long-term consequences of system-wide sediment reductions suggest that it is likely that nearly half of the Delta's land surface will be below sea level by 2100, with the remaining areas impacted by saline intrusion from the sea and frequent flooding.[43] Much of the Mekong's sediment decline is attributed to the 'trapping efficiency' of dams.[43][45][46][47]

Forest impacts: there is a two-way relationship between (reservoir) hydropower and deforestation in the catchments they draw on. In the absence of soil conservation measures, deforestation often contributes to increased erosion, which is then deposited in the reservoir, reducing reservoir capacity. The 1,570 MW Manwan HPP on the Mekong mainstream in China, for example, lost 21.5–22.8% of the total storage capacity to sediments in its first 11 years of operation.[48] But hydropower can also drive deforestation. Reservoirs need to be cleared of vegetation before filling, and given the size of some reservoirs, the area subjected to clearance can be considerable. The deforestation impact of reservoir clearance in the Mekong is unknown. In 2008, an estimated 60% of the timber harvested in Laos was approved under special quotas for hydroelectric and other infra-structure projects.[49] It has been estimated that hydropower development contributes to the loss of 13,100 ha of forest a year in Laos.[50] Over 2006/07, the Lao national timber quota was temporarily raised by 400,000 m3 to allow for logging specifically related to the development of the Nam Theun 2 HPP.[51] It has been argued that logging represents an additional motivation to hydropower development, and is frequently linked to corrupt actors[clarification needed].[52]

River connectivity: 'connectivity' refers to the degree to which matter and organisms can move among spatially defined units in a natural system. ‘River connectivity’ is typically described as lateral (between a river's main channel and its floodplains), longitudinal (between upstream areas in the river channel or catchment, and downstream ones), and vertical (within the water column, between upper water layers and lower ones.[53][54] River connectivity can be conceptualised as a continuum from 'fully connected' to 'disconnected'. River connectivity strongly influences the resistance and resilience of rivers to natural and human-induced disturbances.[54]

Dams interrupt connectivity, and so fish cannot swim upstream to spawn or breed; dams affect water quality in a variety of ways, altering upstream ecosystems so that they contrast starkly with downstream ones. Dam reservoirs are lacustrine (lake-like) environments unlike rapidly flowing waters downstream; upstream, the water is heavy with sediments, while downstream it is not; above the dam, the water is cold, while below it, it is warmer.

A 2014 study explores an HPP build-out of 81 proposed dams across the Mekong Basin.[55] If this were to occur, it would reduce the Mekong's connectivity to just 11% by 2022. This build-out – already well advanced – would make the Mekong one of the most heavily impounded rivers in the world.

Greenhouse gases: hydropower reservoirs do emit greenhouses gases (GHGs), although the volumes and types depend on the reservoir's latitude and age.[56] Young reservoirs tend to release larger amounts of GHGs than older ones due to the availability of decomposing vegetation and other organic matter soon after initial inundation; tropical reservoirs tend to release more than temperate ones due to higher rates of net primary production.[56][57]

In the Mekong, one study looked at 119 reservoirs across the basin, and found that these emit between 0.2 and 1,994 kg of CO2 per MWh over a 100-year lifetime with a median of 26 kg of CO per MWh.[58] Hydropower reservoirs that also provided irrigation water (22) had generally higher emissions reaching over 22,000 kg of CO2 per MWh.[58] Yearly emissions ranged from 26 to 181,3 000 Mt of CO2 per year over a 100-year lifetime, with a median of 28,000 Mt of CO2 per year. Altogether, 82% of hydropower reservoirs (119) and 45% of reservoirs also providing irrigation (22) had emissions comparable to other renewable energy sources (<190 kg CO2 per MWh), while the rest had higher emissions equivalent to fossil fuel power plants (>380 kg CO2 per MWh).[58] These results, the study authors caution, are tentative and they suggest that hydropower in the Mekong Region cannot be considered categorically as low-emission energy. Instead, the GHG emissions of hydropower should be carefully considered case-by-case.[58]

## Mekong hydropower and resettlement of affected communities

[edit]

People are affected by hydropower in a diversity of ways. Most immediately are those displaced by an HPP (i.e. resettled due to the presence of the dam itself, its reservoir, and/or ancillary buildings and infrastructure). Then there are those who will be affected by fisheries and sediment losses, and/or losses arising due to hydrological changes. Such populations may be eligible for compensation. Finally, there are broader impacts, related to the ways in which hydropower affects national economies. This section focuses on involuntary displacement and resettlement due to hydropower in the Mekong.

Figures for the number of people displaced by hydropower development are scattered and not generally available. Where data are available, they are as follows:

Table 4: Resettlement of hydropower-displaced people in the Mekong River Basin[29]

Project | Country | Status | No. resettled

|
|
|

Battambang 1 |  | Commissioned | 4,350
Lower Sesan 2 |  | Commissioned | 4,809
Pursat 1 |  | Under construction | 1,436
Dachaoshan |  | Commissioned | 6,363
Dahuaqiao |  | Commissioned | 4,061
Gongguoqiao |  | Commissioned | 3,476
Huangdeng |  | Commissioned | 4,415
Jinfeng |  | Commissioned | 126
Jinghong |  | Commissioned | 2,264
Lidi |  | Commissioned | 575
Lin Chang |  | Commissioned | 69
Manwan |  | Commissioned | 7,260
Miaowei |  | Commissioned | 11,036
Nuozhadu |  | Commissioned | 43,602
Tuoba |  | Under construction | 5,951
Wunonglong |  | Commissioned | 1,268
Xiaowan |  | Commissioned | 38,646
Xu Cun |  | Commissioned | 400
Don Sahong |  | Commissioned | 66
Houay Ho |  | Commissioned | 3,000
Luang Prabang |  | Under construction | 12,966
Nam Hinboun 2 |  | Commissioned | 1,200
Nam Kong 1 |  | Commissioned | 1,612
Nam Leuk |  | Commissioned | 134
Nam Lik 1-2 |  | Commissioned | 3,127
Nam Mang 3 |  | Commissioned | 1,200
Nam Ngiep 2 |  | Commissioned | 407
Nam Ngum 1 |  | Commissioned | 3,242
Nam Ngum 2 |  | Commissioned | 6,234
Nam Ngum 3 |  | Under construction | 523
Nam Ou 1 |  | Commissioned | 3,080
Nam Ou 2 |  | Commissioned | 700
Nam Ou 3 |  | Commissioned | 560
Nam Ou 4 |  | Commissioned | 630
Nam Ou 5 |  | Commissioned | 910
Nam Ou 6 |  | Commissioned | 210
Nam Ou 7 |  | Commissioned | 490
Nam San 3A |  | Under construction | 2,832
Nam Tha 1 |  | Commissioned | 10,523
Nam Theun 1 |  | Commissioned | 2,623
Nam Theun 2 |  | Commissioned | 6,200
Theun-Hinboun |  | Commissioned | 4,367
Xe Bang Hieng 2 |  | Commissioned | 2,700
Xe Pian-Xe Nam Noy |  | Commissioned | 800
Xe Pon 3 |  | Commissioned | 600
Xekong 3B |  | Commissioned | 240
Xekong 4A |  | Commissioned | 4,458
Xekong 5 |  | Commissioned | 440
Ubol Ratana |  | Commissioned | 30,000
A Luoi |  | Commissioned | 872
Buôn Kốp |  | Commissioned | 4,732
Buon Tua Srah |  | Commissioned | 2,215
Dray Hinh 1 |  | Commissioned | 153
Plei Krong |  | Commissioned | 6,239
Sesan 3A |  | Commissioned | 665
Sesan 4 |  | Commissioned | 1,021
Sre Pok 3 |  | Commissioned | 9,279
Upper Kontum |  | Commissioned | 1,363
Yali |  | Commissioned | 24,610

In 2011, it was estimated that hydropower development in Laos would result in the resettlement of between 100,000 and 280,000 people.[59] In 2019, the Lao Minister of Energy and Mines estimated that, up until that point, 60,000 people from 12,000 families from more than 200 villages across Laos had been resettled to make way for power projects.[60] Similar estimates are not available for other parts of the Mekong River Basin.

## See also

[edit]

* Mekong
* Mekong Delta
* Stung Sen River
* Se San River
* Tonle Sap
* Nam Ngum Dam
* Mekong River Commission
* Yali Falls Dam
* Greater Mekong Sub-region Academic and Research Network
* GMS Environment Operations Center
* Hydropower in China

## References

[edit]

1. ^ "Mekong Mainstream Dams". International Rivers. Retrieved 2017-09-09.
2. ^ Mekong River Commission (2010). "State of the Basin Report, 2010" (PDF). MRC, Vientiane, Laos.
3. ^ J. Dore; Y. Xiaogang; K. Yuk-shing (2007). "China's energy reforms and hydropower expansion in Yunnan". In L. Lebel; J. Dore; R. Daniel; Y.S. Koma (eds.). Democratizing Water Governance in the Mekong Region. Chiang Mai: Silkworm Books. pp. 55–92\. ISBN 978-9749511251.
4. ^ CGIAR Challenge Program on Water and Food. "CPWF Mekong". Archived from the original on April 28, 2012. Retrieved May 19, 2012.
5. ^ "Thousands Call for Regional Governments to Save the Mekong". International Rivers. Retrieved 2017-09-09.
6. ^ "A Dangerous Trajectory for the Mekong River". International Rivers. Retrieved 2017-09-09.
7. ^ Yeophantong, Pichamon (2014). "China's Lancang Dam Cascade and Transnational Activism in the Mekong Region: Who's Got the Power?". Asian Survey. 54 (4): 700–24\. doi:10.1525/as.2014.54.4.700.
8. ^ Hennig, Thomas; Wang, Wenling; Magee, Darrin; He, Damming (2016). "Yunnan's Fast-Paced Large Hydropower Development: A Powershed-Based Approach to Critically Assessing Generation and Consumption Paradigms". Water. 8 (10): 476. Bibcode:2016Water...8..476H. doi:10.3390/w8100476. ISSN 2073-4441.
9. ^ Magee, Darrin (2006). "Powershed Politics: Yunnan Hydropower under Great Western Development". The China Quarterly. 185 (2006): 23–41\. doi:10.1017/S0305741006000038. S2CID 154714463.
10. ^ Tilt, Brian (2015). Dams and development in China: the moral economy of water and power. New York: Colombia University Press. ISBN 978-0-231-17010-9.
11. ^ a b Liu, Shuangquan; Davidson, Michael (2021). China trading power: improving environmental and economic efficiency of Yunnan's electricity market (PDF) (Report). Environment and Natural Resources Program, Belfer Center for Science and International Affairs, Harvard Kennedy School. Retrieved February 8, 2024.
12. ^ Cheng, Chuntian; Chen, Fu; Li, Gang; Ristić, Bora; Mirchi, Ali; Qiyu, Tu; Madani, Kaveh (2018). "Reform and renewables in China: The architecture of Yunnan's hydropower dominated electricity market". Renewable and Sustainable Energy Reviews. 94 (2018): 682–693\. Bibcode:2018RSERv..94..682C. doi:10.1016/j.rser.2018.06.033. S2CID 117337384.
13. ^ "Laos: electricity exports". Retrieved February 8, 2024.
14. ^ BOL (2023). Annual Economic Report 2022 (PDF) (Report). Bank of the Lao PDR. Retrieved January 12, 2024.
15. ^ "Department of Investment Promotion, Ministry of Planning and Investment (Lao PDR) Statistics". Retrieved 28 January 2024.
16. ^ Future Forum, Cambodia (April 2021). Chinese State-Owned Enterprises and Infrastructure Development in Cambodia: The Tatay River Hydropower Dam Project (PDF) (Report). BRI Monitor. Retrieved February 10, 2024.
17. ^ Siciliano, Giuseppina; Urban, Frauke; Tan-Mullins, May; Lonn, Pichdara; Kim, Sour (2016). "The Political Ecology of Chinese Large Dams in Cambodia: Implications, Challenges and Lessons Learnt from the Kamchay Dam". Water. 8 (9): 405. Bibcode:2016Water...8..405S. doi:10.3390/w8090405.
18. ^ "Hydropower Lower Sesan II". Retrieved 8 February 2024.
19. ^ "Cambodian PM Affirms Ban on Mekong Hydropower Projects". The Diplomat. December 1, 2023.
20. ^ Thul, Prak Chan (8 January 2020). "Don Sahong hydropower dam in Laos connects to Cambodian grid". Reuters. Retrieved 10 February 2024.
21. ^ Molle, François; Floch, Philippe (2008). "Megaprojects and Social and Environmental Changes: The Case of the Thai 'Water Grid'". Ambio: A Journal of the Human Environment. 37 (3): 199–204\. doi:10.1579/0044-7447(2008)37[199:MASAEC]2.0.CO;2. PMID 18595275. S2CID 31229220.
22. ^ Wangkiat, Paritta (8 May 2016). "Downstream countries concerned over water diversion". Bangkok Post. Retrieved 10 February 2024.
23. ^ Lan, Mai (6 June 2016). "Diverting the Mekong River into Thailand: The Khong-Loei-Chi-Mun project". Mekong Commons. Retrieved 10 February 2024.
24. ^ Simpson, Adam (2007). "The environment – energy security nexus: critical analysis of an energy 'love triangle' in Southeast Asia". Third World Quarterly. 28 (3): 539–554\. doi:10.1080/01436590701192710. S2CID 154819073.
25. ^ Kirchherr, Julian; Pomun, Teerapong; Walton, Matthew J. (2016). "Mapping the Social Impacts of 'Damocles Projects': The Case of Thailand's (as yet Unbuilt) Kaeng Suea Ten Dam". Journal of International Development. 30 (3): 474–492\. doi:10.1002/jid.3246.
26. ^ IFC (2018). Strategic Environmental Assessment of the Myanmar Hydropower Sector - Final Report (Report). International Finance Corporation. Retrieved February 10, 2024.
27. ^ ICEM (2010). Strategic Environmental Impact Assessment for Hydropower on the Mekong Mainstream - Final Report (PDF) (Report). Mekong River Commission. Retrieved February 8, 2024.
28. ^ HDR; DHI (2015). Study on the Impacts of Mainstream Hydropower on the Mekong River (PDF) (Report). Ministry of Natural Resources and the Environment (Vietnam). Retrieved February 8, 2024.
29. ^ a b c d "MERFI, 2024. Dataset on the Dams of the Greater Mekong". Bangkok: Mekong Region Futures Institute. Retrieved 2024-04-04.
30. ^ https://www.bangkokpost.com/thailand/general/2923451/govt-urged-to-delay-dam-consultation?tbref=hp. Bangkok Post. Retrieved 2024-12-20
31. ^ Piman, Thanapon; Cochrane, Thomas A.; Arias, Maricio E.; Green, Anthony; Dat, N.D. (1999). "Assessment of Flow Changes from Hydropower Development and Operations in Sekong, Sesan, and Srepok Rivers of the Mekong Basin". Journal of Water Resources Planning and Management. 139 (6): 723–732\. doi:10.1061/(ASCE)WR.1943-5452.0000286.
32. ^ MRC (2005). Overview of the Hydrology of the Mekong Basin (PDF) (Report). Mekong River Commission. Retrieved 2024-02-12.
33. ^ Campbell, Ian C. (2009). "Introduction". In Campbell, Ian C. (ed.). The Mekong: biophysical environment of an international river basin. Amsterdam: Academic Press. pp. 1–11\. ISBN 978-0-12-374026-7.
34. ^ Stone, Richard (August 12, 1999). "Mayhem on the Mekong". Science. 333 (6044): 814–818\. doi:10.1126/science.333.6044.814. PMID 21835993.
35. ^ Hecht, Jory S.; Lacombe, Guillaume; Arias, Mauricio E.; Dang, Thanh Duc; Piman, Thanapon (2019). "Hydropower dams of the Mekong River basin: A review of their hydrological impacts". Journal of Hydrology. 568 (2019): 285–300\. Bibcode:2019JHyd..568..285H. doi:10.1016/j.jhydrol.2018.10.045. S2CID 134742210.
36. ^ Ngor, Peng Bun; McCann, Kevin S.; Grenouillet, Gaël; So, Nam; McMeans, Bailey C.; Fraser, Evan; Lek, Sovan (2018). "Evidence of indiscriminate fishing effects in one of the world's largest inland fisheries". Scientific Reports. 8 (1): 8947. Bibcode:2018NatSR...8.8947N. doi:10.1038/s41598-018-27340-1. PMC 5997758. PMID 29895943.
37. ^ a b Pukinskis, Ilse; Geheb, Kim (2012). "The Impacts of Dams on the Fisheries of the Mekong". CGSpace. Vientiane: WLE Greater Mekong. Retrieved 2024-02-12.
38. ^ Baran, Eric; Guerin, Eric; Nasielski, Joshua (2015). Fish, sediment and dams in the Mekong (PDF) (Report). Penang: WorldFish and WLE Greater Mekong. Retrieved 2024-02-12.
39. ^ World Commission on Dams (2000). Dams and development - a new framework for decision-making. The Report of the World Commission on Dams (PDF). London: Earthscan. ISBN 9781853837982. Retrieved 12 February 2024.
40. ^ a b c Yoshida, Yuichiro; Lee, Han Soo; Trung, Bui Huy; Tran, Hoang-Dung; Lall, Marian Keshlav; Kakar, Kifayatullah; Xuan, Tran Dung (2020). "Impacts of Mainstream Hydropower Dams on Fisheries and Agriculture in Lower Mekong Basin". Sustainability. 12 (6): 2408. Bibcode:2020Sust...12.2408Y. doi:10.3390/su12062408.
41. ^ MRC (2020). Assessment of fisheries yield in the lower Mekong River Basin 2020 (PDF) (Report). Vientiane: Mekong River Commission. Retrieved 2024-02-12.
42. ^ a b c MRC (2010). State of the Basin Report 2010 (PDF) (Report). Vientiane: Mekong River Commission. Retrieved 2024-02-13.
43. ^ a b c Kondolf, George M.; Rubin, Zan K.; Minear, J. Toby (2014). "Dams on the Mekong: Cumulative sediment starvation". Environmental Management. 50 (6): 5158–5169\. Bibcode:2014WRR....50.5158K. doi:10.1002/2013WR014651.
44. ^ Kummu, Matti; Varis, Olli (2007). "Sediment-related impacts due to upstream reservoir trapping, the Lower Mekong River". Geomorphology. 85 (3–4): 275–293\. Bibcode:2007Geomo..85..275K. doi:10.1016/j.geomorph.2006.03.024.3–4&rft.pages=275-293&rft.date=2007&rft_id=info:doi/10.1016/j.geomorph.2006.03.024&rft_id=info:bibcode/2007Geomo..85..275K&rft.aulast=Kummu&rft.aufirst=Matti&rft.au=Varis,+Olli&rft_id=https://linkinghub.elsevier.com/retrieve/pii/S0169555X06003229&rfr_id=info:sid/en.wikipedia.org:Hydropower+in+the+Mekong+River+Basin" class="Z3988">
45. ^ a b c MRC (2019). State of the Basin Report 2018 (PDF) (Report). Vientiane: Mekong River Commission. Retrieved 2024-02-14.
46. ^ Allison, Mead; Nittrouer, Charles; Ogston, Andrea; Mullarney, Julia; Nguyen, Thanh (2017). "Sedimentation and Survival of the Mekong Delta: A Case Study of Decreased Sediment Supply and Accelerating Rates of Relative Sea Level Rise" (PDF). Oceanography. 30 (3): 98–109\. Bibcode:2017Ocgry..30...98A. doi:10.5670/oceanog.2017.318.
47. ^ Piman, Thanapon; Shrestha, Manish (2017). Case study on sediment in the Mekong River Basin: Current state and future trends (PDF) (Report). Stockholm: Stockholm Environment Institute. Retrieved 2024-02-14.
48. ^ Fu, K.D.; He, D.M.; Lu, X.X. (2008). "Sedimentation in the Manwan reservoir in the Upper Mekong and its downstream impacts". Quaternary International. 186 (1): 91–99\. Bibcode:2008QuInt.186...91F. doi:10.1016/j.quaint.2007.09.041.
49. ^ PROFOR (2011). Improving Forest Governance in the Mekong Region: Options for Regional Activities in Sup-port of National Programs - Volume 1 (PDF) (Report). Washington D.C.: Program on Forests. Retrieved 2024-02-15.
50. ^ Thomas, Ian Lloyd (2015). Drivers of Deforestation in the Greater Mekong Subregion: Laos Country Report (PDF) (Report). USAID Lowering Emissions in Asia’s Forests (USAID LEAF) and the Food and Agriculture Organization. Retrieved 2024-02-15.
51. ^ Tong, Pei Sin (2009). Lao People's Democratic Republic Forestry Outlook Study (PDF) (Report). Rome: Food and Agriculture Organization. Retrieved 2024-02-15.
52. ^ Sopera, Danzig (2022). Corruption and water governance in the Mekong River Basin (PDF) (Report). U4 Issue 2022:12. Bergen: U4 Anti-Corruption Research Centre, Chr. Michelsen Institute. Retrieved 2024-02-15.
53. ^ Seliger, Carina; Zeiringer, Bernhard (2009). "River Connectivity, Habitat Fragmentation and Related Restoration Measures". In Schmutz, Stefan; Sendzimir, Jan (eds.). Riverine ecosystem management: science for Governing towards a sustainable future (PDF). Cham: SpringerOpen. pp. 171–186\. doi:10.1007/978-3-319-73250-3. ISBN 978-3-319-73250-3. S2CID 24785869.
54. ^ a b Wohl, Ellen (June 15, 2017). "Connectivity in rivers". Progress in Physical Geography: Earth and Environment. 41 (3): 345–362\. Bibcode:2017PrPG...41..345W. doi:10.1177/0309133317714972. S2CID 133801720.
55. ^ Grill, Günter; Ouellet Dallaire, Camille; Fluet Chouinard, Etienne; Sindorf, Nikolai; Lehner, Berhard (2014). "Development of new indicators to evaluate river fragmentation and flow regulation at large scales: A case study for the Mekong River Basin". Ecological Indicators. 45 (2014): 148–159\. Bibcode:2014EcInd..45..148G. doi:10.1016/j.ecolind.2014.03.026.
56. ^ a b Deemer, Bridget R.; Harrison, John A.; Li, Siyue; Beaulieu, Jake J.; DelSontro, Tonya; Barros, Nathan; Bezerra-Neto, José F.; Power, Stephen M.; dos Santos, Marco A.; Vonk, J. Arie (2016). "Greenhouse Gas Emissions from Reservoir Water Surfaces: A New Global Synthesis". BioScience. 66 (11): 949–964\. doi:10.1093/biosci/biw117. PMC 7425809. PMID 32801383.
57. ^ Yan, Xingcheng; Thieu, Vincent; Garnier, Josette (2020). "Long-Term Evolution of Greenhouse Gas Emissions From Global Reservoirs". Front. Environ. Sci. 9 (2021): 2408. doi:10.3389/fenvs.2021.705477.
58. ^ a b c d Räsänen, Timo; Varis, Olli; Scherer, Laura; Kummu, Matti (2018). "Greenhouse gas emissions of hydropower in the Mekong River Basin". Environ. Res. Lett. 13 (2018): 034030. Bibcode:2018ERL....13c4030R. doi:10.1088/1748-9326/aaa817. hdl:1887/68808.
59. ^ Fenton, Nina; Lindelow, Magnus; Heinimann, Andreas; Thomas, Ian (2011). The socio-geography of mining and hydro in Lao PDR: Analysis Combining GIS Information with Socioeconomic Data (PDF) (Report). Washington D.C.: World Bank. Retrieved 2024-02-17.
60. ^ Vientiane Times (2019-03-29). "12,000 Lao families relocated for hydropower projects". Vientiane Times. Vientiane. Retrieved 2024-02-18.

## External links

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* Australian Mekong Resource Centre
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* Electricity Authority of Cambodia
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* Fisheries Action Coalition Team (Cambodia) Archived 2011-07-22 at the Wayback Machine
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* Stimson Institute Mekong Infrastructure Tracker
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* v
* t
* e

Dams in the Mekong River Basin

On Mekong River|

* :
* Wunonglong
* Lidi
* Huangdeng
* Dahuaqiao
* Miaowei
* Gongguoqiao
* Xiaowan
* Manwan
* Dachaoshan
* Nuozhadu
* Jinghong

* Xayaburi
* Don Sahong
* Pakchom
* Ban Koum

* Stung Treng
* Sambor

On tributaries of
the Mekong River|

* :
* Xi'er He

* Nam Ngum
* Nam Theun 2
* Theun Hinboun
* Houay Ho
* Xe Kaman 3

* Huai Kum
* Pak Mun
* Sirindhorn
* Ubol Ratana
* Lam Phra Phloeng
* Lam Takhong

* Buon Kuop
* Buon Tua Srah
* Dray Hling
* Duc Xuyen
* Plei Krong
* Sre Pok 3
* Sre Pok 4
* Se San 3
* Se San 4
* Yaly

* Lower Se San 2
* Lower Sre Pok 2
* Stung Battambang 1
* Stung Sen

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