In 2024, hydropower reaffirmed its role as the world’s largest renewable electricity source and a cornerstone of the clean energy transition. Global momentum grew through new projects, stronger policies, and rising interest in energy storage. Two key themes for 2025 are advancing pumped storage development and highlighting hydropower’s ability to manage climate extremes like drought and flooding.

The International Hydropower Association (IHA) focused on promoting pumped storage through initiatives like the Global Alliance for Pumped Storage (GAPS), the Global Renewables Summit, and the Global Storage Pledge—now backed by 58 governments. Despite pumped storage providing over 90% of global stored energy, market barriers persist due to high capital costs and uncertain returns.

In 2024, IHA expanded its global presence with new offices across four continents and welcomed 17 new members. As IHA marks its 30th anniversary, efforts will continue to position hydropower at the heart of climate resilience and the clean energy future.