Nepal's Power: Hydropower's Perilous Future

Nepal's reliance on hydropower for over 90% of its electricity has been severely tested by recent catastrophic flooding. The disaster, triggered by a glacial mountain collapse, resulted in significant damage to river projects, leading to the loss of 410 megawatts of generation capacity, approximately 10% of the nation's total power. This event has raised serious questions about Nepal's energy security as climate and geological risks escalate.

The country has experienced substantial growth in hydropower output over the last decade, contributing to economic development and powering nearly all its 30 million citizens. However, the extensive destruction of infrastructure, including seven directly impacted hydropower projects and six under construction, underscores the inherent risks of this strategy in a region susceptible to warming glaciers and unpredictable hazards.

This crisis has prompted urgent calls for a fundamental rethink of Nepal's energy infrastructure. Officials emphasize the need to learn from the damage and develop robust systems to mitigate future risks. Experts suggest moving powerhouses to higher elevations, improving evacuation plans, and exploring remotely operated systems. Diversifying the power mix with sources like solar electricity is also being considered to enhance resilience.

The challenges faced by Nepal are part of a broader regional issue. The Himalayas are a crucial water source for millions, and their glaciers are increasingly impacted by climate change and human activity. This necessitates a coordinated, regional approach to monitoring and developing early warning systems for geological and climatic threats, with a priority on building climate-resilient infrastructure to address what is described as an existential threat.