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Nam Theun 2 Dam information


Nam Theun 2
Nam Theun 2 Dam is located in Laos
Nam Theun 2 Dam
Location of Nam Theun 2 in Laos
LocationBolikhamsai and Khammouane Provinces, Laos
Coordinates17°59′49″N 104°57′10″E / 17.99694°N 104.95278°E / 17.99694; 104.95278
Construction began2005
Opening dateDecember 2010 (Inauguration)[1]
Dam and spillways
Type of damGravity dam
ImpoundsNam Theun
Height39 m (128 ft)
Length436 m (1,430 ft)
Reservoir
Total capacity3.53 km3 (2,860,000 acre⋅ft)
Catchment area4,039 km2 (1,559 sq mi)
Surface area450 km2 (170 sq mi)
Power Station
Operator(s)Nam Theun 2 Power Company
Commission dateApril 2010[1]
TurbinesEDL: 2 × 37.5 MW Pelton turbine
EGAT: 4 × 250 MW Francis turbine [2]
Installed capacity1,075 MW

The Nam Theun 2 Hydropower Project, or simply NT2, is a hydroelectric dam on the Nam Theun River in Laos. Commercial operation of the plant began in April 2010.[1] The scheme diverts water from the Nam Theun, a tributary of the Mekong River, to the Xe Bang Fai River, enabling a generation capacity of 1,075 MW, from a 350 m (1,148 ft) difference in elevation between the reservoir and the power station.

It is the largest hydroelectric project so far in Laos, exporting power to Thailand as well as supplying the local area with electricity. At the time of signing in 2005, NT2 was the largest foreign investment in Laos, the world's largest private sector cross-border power project financing, the largest private sector hydroelectric project financing, and one of the largest internationally financed IPP projects in Southeast Asia. The dam also marked a return by the World Bank to funding large-scale infrastructure, after a decade-long hiatus.

According to the government of Laos, "the project is an essential part of the country's development framework and the project's implementation is likely to be the first real possibility for (Laos) to reduce gradually its dependence on Official Development Assistance".[3]

The project has significant environmental and social impacts, and comprehensive measures have been designed to mitigate these. According to a group of social and environmental experts who advise on the project, these measures could become a global model. Although Newsweek referred to it as a "kinder and gentler dam",[4] the project has also attracted criticism.[5]

By 2015, it was possible to see the effect of the dam and criticism mounted. A group of non-governmental organisations said: "Ten years after the start of the construction of the Nam Theun 2 Dam in Central Laos, it is clear that this mega project has disastrous impacts on people and their environment."[6]

  1. ^ a b c "History of NT2". Nam Theun 2 Dam (NTPC). Archived from the original on 4 March 2016. Retrieved 6 March 2016.
  2. ^ "Technical Information". Nam Theun 2 Power Company (NTPC). Archived from the original on 5 March 2016. Retrieved 6 March 2016.
  3. ^ "Lao National Committee for Energy". Archived from the original on 2007-12-17. Retrieved 2008-01-01.
  4. ^ World Bank September 2007
  5. ^ "International Rivers, "Model" Dam Encounters Similar Problems As Previous Projects". Archived from the original on 2007-07-15. Retrieved 2007-07-07.
  6. ^ "Both ENDS: 10 years after: 'Nam Theun 2 dam' has not delivered its promises". Archived from the original on 2016-08-11. Retrieved 2016-07-19.

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