Southeast Asia’s electricity demand surges, driving need for renewable energy: IEA - Power Technology
Published November 25, 2025
Southeast Asia’s Electricity Demand Surges, Driving Need for Renewable Energy: IEA
The International Energy Agency (IEA) has released a report indicating that Southeast Asia is experiencing a significant increase in electricity demand, which is driving the urgent need for renewable energy sources across the region. The report highlights the critical role of renewable energy in meeting this growing demand while addressing environmental concerns and energy security.
According to the IEA, electricity consumption in Southeast Asia is projected to rise by more than 60% by 2040. This surge is largely attributed to rapid economic growth, urbanization, and rising living standards in countries such as Indonesia, Vietnam, and the Philippines. As a result, the region is expected to consume approximately 1,800 terawatt-hours (TWh) of electricity by 2040, up from about 1,100 TWh in 2020.
The report underscores the importance of transitioning to renewable energy to meet this escalating demand. The IEA estimates that renewable sources, including solar, wind, and hydropower, could account for nearly 50% of the region’s electricity generation by 2040 if supportive policies and investments are implemented. This shift is essential for reducing greenhouse gas emissions and promoting sustainable development.
As of 2020, renewable energy sources contributed around 30% of the total electricity generation in Southeast Asia. However, the IEA emphasizes that significant investments are required to expand renewable capacity and integrate these sources into existing energy systems. The agency estimates that an investment of approximately $1.5 trillion will be necessary to achieve the targeted growth in renewable energy capacity by 2040.
One of the key challenges facing the region is the reliance on fossil fuels, which still dominate the energy mix. Natural gas and coal accounted for nearly 80% of the electricity generation in Southeast Asia in 2020. The IEA warns that without a concerted effort to transition to cleaner energy sources, the region may face severe environmental consequences, including increased air pollution and heightened vulnerability to climate change.
The report also highlights the role of policy frameworks in accelerating the adoption of renewable energy technologies. Governments in Southeast Asia are encouraged to implement supportive policies that promote investment in renewables, enhance grid infrastructure, and encourage energy efficiency measures. The IEA points out that countries that have successfully integrated renewable energy into their energy systems have done so through a combination of regulatory support, financial incentives, and public-private partnerships.
In addition to policy measures, the IEA emphasizes the importance of technological innovation in driving the renewable energy transition. Advances in energy storage, grid management, and smart technologies are critical for enhancing the reliability and efficiency of renewable energy systems. The report notes that countries in the region are increasingly investing in research and development to foster innovation and improve the competitiveness of renewable energy technologies.
Furthermore, the IEA highlights the potential for regional cooperation in enhancing energy security and facilitating the transition to renewables. Collaborative efforts among Southeast Asian nations can help share best practices, pool resources, and create a more resilient energy infrastructure. The report suggests that regional initiatives, such as the ASEAN Power Grid, can play a pivotal role in promoting cross-border electricity trade and optimizing the use of renewable resources.
The IEA’s report also addresses the social implications of the energy transition. As the region shifts towards renewable energy, it is essential to ensure that the transition is inclusive and equitable. This includes providing access to affordable energy for all populations, particularly in rural areas where energy poverty remains a significant challenge. The agency stresses the need for targeted policies that support vulnerable communities and promote job creation in the renewable energy sector.
In conclusion, the IEA’s findings underscore the urgent need for Southeast Asia to embrace renewable energy sources in response to surging electricity demand. With the right policies, investments, and technological advancements, the region can transition to a sustainable energy future that meets the needs of its growing population while addressing environmental concerns. The path forward requires coordinated efforts from governments, the private sector, and civil society to realize the full potential of renewable energy in Southeast Asia.
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