Floating solar poised to play ‘critical role’ in land-lacking Southeast Asia - Offshore Energy
Published March 24, 2026
Floating Solar Set to Play a Vital Role in Land-Scarce Southeast Asia
As Southeast Asia confronts the dual challenges of energy demand and limited land availability, floating solar energy systems are emerging as a promising solution. This innovative technology allows solar panels to be installed on bodies of water, thereby conserving valuable land resources while harnessing renewable energy. Experts assert that floating solar has the potential to significantly contribute to the region's energy transition.
According to a report by the International Renewable Energy Agency (IRENA), Southeast Asia is expected to see a substantial increase in energy consumption, with demand projected to rise by 80% by 2040. This surge is driven by rapid urbanization, economic growth, and a growing population. In light of these trends, the region is in urgent need of sustainable energy solutions that can meet future demands without compromising land use.
Floating solar installations present a unique opportunity to address these challenges. They can be deployed on lakes, reservoirs, and other water bodies, allowing countries to capitalize on unused spaces. This is particularly beneficial in Southeast Asia, where land is often scarce and expensive. The technology not only generates electricity but also helps reduce evaporation from water surfaces, which is crucial in regions facing water scarcity.
Recent developments in floating solar technology have led to increased efficiency and reduced costs. The latest projects in Southeast Asia showcase the potential for large-scale floating solar farms. For example, in 2020, the largest floating solar farm in the world was inaugurated in China, with a capacity of 850 MW. This project has set a precedent for future developments in the region.
Countries like Indonesia, Malaysia, and Thailand are already exploring the feasibility of floating solar projects. In Indonesia, the government has expressed interest in developing floating solar farms on its vast network of lakes and reservoirs. The Ministry of Energy and Mineral Resources has set a target of generating 23% of the country's energy from renewable sources by 2025, and floating solar could play a significant role in achieving this goal.
Similarly, Malaysia has initiated several pilot projects to assess the viability of floating solar installations. The country aims to increase its renewable energy capacity to 20% by 2025, and floating solar is seen as a key component of this strategy. The Malaysian government is actively seeking investment and partnerships to develop these projects further.
Thailand has also made strides in the floating solar sector. The Electricity Generating Authority of Thailand (EGAT) has launched a floating solar project on the Sirindhorn Dam, which has a capacity of 45 MW. This initiative is part of the country's broader plan to increase its renewable energy share to 30% by 2037. The success of this project could pave the way for additional floating solar developments across the nation.
In addition to generating clean energy, floating solar projects can provide multiple benefits. They can help mitigate the effects of climate change by reducing greenhouse gas emissions, and they can contribute to energy security by diversifying the energy mix. Moreover, these projects can create job opportunities in construction, operation, and maintenance, further supporting local economies.
Despite the promising outlook for floating solar in Southeast Asia, several challenges remain. Regulatory frameworks and policies need to be adapted to facilitate the deployment of these systems. Additionally, financing and investment are crucial for scaling up floating solar projects. Public-private partnerships and international collaboration will be essential in overcoming these barriers.
As Southeast Asia continues to navigate its energy transition, the role of floating solar is becoming increasingly critical. With its ability to generate renewable energy while conserving land resources, this technology is well-positioned to contribute to a sustainable energy future for the region. The ongoing efforts by governments and private sectors to explore and implement floating solar projects will be pivotal in shaping the energy landscape of Southeast Asia in the coming years.
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