South America Reshapes Hydropower Future Amid Climate and Investment Pressures

Hydropower remains the backbone of South America's energy system, currently satisfying 45% of the continent's electricity demand despite only 30% of its potential being exploited. However, development has plateaued due to falling investor confidence in Colombia and political volatility in Argentina, Peru, and Chile. Climate change poses significant risks, with El Nino-intensified droughts impacting generation and extreme weather events threatening infrastructure reliability. Governments are increasingly seeking to diversify energy sources and improve water management strategies. Recent studies highlight vulnerabilities in key hydrological basins, particularly in northern Argentina, the La Plata Basin, and eastern Brazil. Meanwhile, Bolivia is expanding its hydropower capacity, with the Rositas dam project aiming to boost energy production and agricultural land while mitigating flooding. The International Hydropower Association notes that while total installed capacity reached 183GW in 2024, adaptive management strategies are crucial to balance generation efficiency with climate-related risks. The integration of AI and advanced assessment models is becoming essential for navigating these complex challenges and ensuring long-term energy security in the region.