Southeast Asia Hydropower Market Size - Share Outlook, Growth Analysis Report and Forecast Trends 2026-2030

Southeast Asia represents a critical and fast-growing region within the global hydropower sector, with the broader Asia Pacific market accounting for roughly 59.54% of worldwide hydropower revenues in 2025. The regional hydropower market contributes to a global industry valued at over USD 274 billion in 2025, with Southeast Asia's installed capacity at 61.20 GW. The region's hydropower infrastructure includes a mix of large-scale reservoir projects, run-of-river facilities, and pumped-storage systems serving diverse geographic conditions from mountainous mainland Southeast Asia to the archipelagic nations.

• •Southeast Asia hydropower capacity: 61.20 GW in 2025, growing to 64.07 GW in 2026
• •Asia Pacific region accounted for approximately 59.54% of global hydropower revenues in 2025
• •Global hydropower market valued at over USD 274 billion in 2025

Rapid economic development and population growth across Southeast Asia are pushing electricity demand to new highs, creating a strong need for reliable baseload power that hydropower can supply. Governments in the region are actively promoting renewable energy targets to reduce dependence on fossil fuels and meet climate commitments. The region's geography, characterized by monsoonal rainfall, major river systems like the Mekong, and mountainous terrain, provides natural advantages for both large-scale and run-of-river hydro development.

• •Rising electricity demand from industrial expansion and growing populations in Indonesia, Vietnam, Thailand, and the Philippines
• •National renewable energy targets and government incentives supporting hydro project development
• •Abundant water resources from major river systems including the Mekong, Salween, and Chao Phraya

The Southeast Asia hydropower market spans multiple countries with varying levels of development, from mature markets like Vietnam and the Philippines to emerging opportunities in Myanmar, Laos, and Indonesia. Capacity can be segmented by project type, including large hydro projects above 10 MW, small hydro plants under 10 MW, and pumped-storage hydropower for grid balancing. Laos and Myanmar have significant untapped hydropower potential, while countries like Indonesia and the Philippines are actively expanding their hydro fleets to serve island and remote communities.

• •Vietnam and the Philippines are among the most active markets with ongoing large-scale hydro development
• •Laos has emerged as a regional hydropower hub, exporting electricity to neighboring Thailand, Vietnam, and Cambodia
• •Indonesia and the Philippines are expanding both grid-connected and off-grid mini-hydro installations

What are the recent trends and outlook?

The Southeast Asia hydropower market is expected to maintain steady growth through 2031, with installed capacity forecast to continue climbing from the 2026 baseline. Pumped-storage hydropower is gaining attention as a critical grid-stability solution to support growing shares of variable solar and wind generation. Sustainability concerns and environmental impact assessments are increasingly shaping project approvals, particularly for developments on transboundary rivers, while digitalization and smart-grid integration are improving operational efficiency at existing facilities.

• •Hydropower capacity in Southeast Asia forecast to reach approximately 80 GW by 2031, up from 61.20 GW in 2025
• •Growing emphasis on pumped-storage hydropower to complement intermittent renewable energy sources
• •Increasing focus on environmental sustainability and social impact considerations in project development and licensing