The Price of Dams: Vietnam

Ya Ly dam spillway,Vietnam

Hydropower has boomed in Vietnam over the past decade and now generates more than a third of the country’s electricity. In 2013 the National Assembly reported that 268 hydropower projects were up and running, with a further 205 projects expected to be generating by 2017. They are helping to meet a national demand for energy that the authorities forecast will treble between 2010 and 2020. Other power sources are less promising, at least in the short run. A plan to build several nuclear reactors by 2030 is behind schedule, for example. And Vietnam’s coal reserves, mostly in the north, are not easy to get at.

Yet the hydropower boom comes at a price. Rivers and old-growth forests have been ravaged, and tens of thousands of villagers, often from ethnic minorities, displaced. Many have been resettled on poor ground. Those who have stayed are at risk of flash floods caused by faulty dam technology and inadequate oversight. Green Innovation and Development Centre, an environmental group in the capital, Hanoi, says shoddy dam construction is the norm, and developers ignore the question of whether their projects could trigger earthquakes…

Many hydro-electric companies are owned by or affiliated with Electricity Vietnam (EVN), the loss-making state power monopoly. Because hydropower is Vietnam’s cheapest source of electricity, EVN resists investing in measures such as dam-safety assessments that would further erode its financial position. As it is, even though environmental-impact assessments for hydropower projects are required, they are never published, according to the United Nations Development Programme….. Hydropower companies want to keep their mountain reservoirs as full as possible in order to generate as much electricity as Vietnam’s rivers allow. But that narrow focus can deprive farmers of irrigation in the dry season. And when heavy rains come in the summer and autumn, floodwaters cascade over the dam walls with little or no warning.

Hydropower in Vietnam: Full to bursting, Economist, Jan.10, 2015, at 35

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