Southeast Asia is betting on hydropower, but there are risks of economic damage - CNBC
Published January 08, 2026
Southeast Asia's Investment in Hydropower: Balancing Growth and Economic Risks
Southeast Asia is increasingly turning to hydropower as a crucial component of its renewable energy strategy. This shift is driven by the region's vast water resources and the need to reduce dependence on fossil fuels. However, the expansion of hydropower projects carries significant economic risks and potential environmental impacts that require careful consideration.
Countries in Southeast Asia are investing heavily in hydropower to meet growing energy demands and support economic development. The region has an abundance of rivers and waterfalls, making it an ideal location for hydropower generation. According to the International Hydropower Association, Southeast Asia has a potential hydropower capacity of around 100 gigawatts (GW), but only approximately 40% of this potential has been harnessed to date.
For instance, Laos has emerged as a significant player in the hydropower sector, with plans to become the "battery of Southeast Asia." The country has developed several large dams, including the Xayaburi Dam, which is expected to generate 1,285 megawatts (MW) of electricity. This project, along with others, aims to export electricity to neighboring countries, particularly Thailand, which is experiencing a surge in energy demand.
Vietnam is also making strides in hydropower development. The country has set ambitious targets to increase its renewable energy capacity, with hydropower expected to play a key role. The Vietnamese government aims to generate 30% of its electricity from renewable sources by 2030, with hydropower contributing significantly to this goal.
Despite the promising prospects of hydropower, there are inherent risks associated with large-scale projects. Environmental concerns are paramount, as dam construction can lead to significant ecological disruption. The creation of reservoirs often results in the flooding of vast areas of land, which can displace local communities and wildlife. For example, the construction of the Xayaburi Dam has faced criticism for its potential impact on the Mekong River ecosystem and the livelihoods of those who depend on it.
Moreover, the economic viability of hydropower projects can be questionable. While these projects can provide long-term energy solutions, the initial investment costs are substantial. Financing large hydropower projects often relies on foreign loans and investments, which can lead to debt burdens for developing countries. Laos, for instance, has accumulated significant debt due to its ambitious hydropower development plans, raising concerns about the sustainability of its economic model.
In addition to financial risks, there are concerns about the long-term reliability of hydropower as a primary energy source. Climate change poses a significant threat to water availability, which is crucial for hydropower generation. Changes in rainfall patterns and increased frequency of droughts could impact the efficiency of existing and future hydropower projects. This unpredictability raises questions about the stability of energy supplies derived from hydropower.
Furthermore, the social implications of hydropower projects cannot be overlooked. Large dams often lead to the displacement of communities, resulting in loss of livelihoods and cultural heritage. The construction of the Xayaburi Dam, for example, has raised concerns about the rights of local populations and the need for fair compensation. Ensuring that affected communities are adequately consulted and compensated is essential for the long-term success of hydropower projects.
As Southeast Asia continues to invest in hydropower, it is crucial for governments to adopt a balanced approach that considers both the economic benefits and the potential risks. Policymakers must prioritize sustainable development practices that minimize environmental impacts and safeguard the rights of local communities. This includes conducting thorough environmental and social impact assessments before project approval and implementing measures to mitigate negative effects.
International cooperation is also vital in addressing the challenges associated with hydropower development. Regional partnerships can facilitate knowledge sharing and best practices, ensuring that projects are designed and implemented in a way that maximizes benefits while minimizing harm. Collaborative efforts can also help in addressing transboundary water management issues, particularly in river basins shared by multiple countries.
In conclusion, while hydropower presents a promising opportunity for Southeast Asia to enhance its energy security and support economic growth, it is essential to approach these projects with caution. Balancing the benefits of hydropower with the potential economic and environmental risks will be key to achieving sustainable development in the region. As countries move forward with their hydropower initiatives, a commitment to responsible practices and community engagement will be crucial for long-term success.