Sustainability
Countries with the Most Hydropower (Ranked by Installed Capacity)
China leads the world in hydropower with 435.95 GW of installed capacity — more than three times that of second-place Brazil at 110 GW. Hydropower is the world's largest source of renewable electricity, accounting for roughly 40 percent of global renewable generation. This ranking covers the top 15 countries by hydropower installed capacity using IHA and IRENA 2024 data, with methodology, historical context, and caveats about what capacity figures do and do not tell you.