The short version
- Recent flash floods killed over 1,300 people and damaged twelve hydropower plants, eliminating more than ten percent of Nepal's total electricity generation capacity.
- Government officials acknowledge the need to rethink hydropower policy due to increasing climate-related disasters, while experts urge diversification into solar and wind energy.
- Despite calls for alternative energy sources, analysts note that hydropower remains Nepal's primary competitive advantage in the region, with significant economic benefits from exports.
A series of devastating flash floods has exposed the vulnerabilities inherent in Nepal’s heavy reliance on hydropower as its sole source of electricity. The recent disaster, which resulted in more than 1,300 deaths and left thousands missing, severely impacted infrastructure near the border with Tibet. Twelve hydropower facilities in the Trishuli River basin sustained significant damage, effectively wiping out over ten percent of the nation’s total power generation capacity. Operators remain uncertain whether these damaged plants can be restored to service, raising immediate concerns about long-term energy stability.
For years, Nepal has transformed its energy landscape from one plagued by frequent blackouts to a reliable exporter of electricity. Eight years ago, only two-thirds of the population had access to power, and those connected often faced cuts lasting up to sixteen hours daily. Through infrastructure expansion and reduced corruption, the country achieved near-universal 24-hour supply by 2018. Today, approximately 225 hydropower plants generate nearly 3,900 megawatts, enough to power three million households simultaneously. This surplus allows Nepal to earn nearly $200 million annually by exporting electricity to India and Bangladesh.
The recent catastrophe underscores the environmental risks associated with building infrastructure in high-altitude regions. The Himalayas are warming at a rate 50 percent faster than the global average, increasing the frequency of extreme weather events. Preliminary investigations suggest that a collapsed glacier and its underlying bedrock triggered the flash floods. While scientists caution against definitively linking this specific event to climate change, Nepal’s Disaster Risk Reduction and Management Authority has noted that more than ninety percent of disasters recorded between 2018 and 2024 were climate-related. This trend suggests that such extreme weather may become a recurring threat to energy infrastructure.
In response to the crisis, government officials are reconsidering national energy strategy. Rajan Dhakal, a spokesman for the state-owned Nepal Electricity Authority, stated that the time has come to rethink hydropower policy. While he assured households that current supply remains adequate, he acknowledged the need for greater resilience. One potential adjustment involves shifting toward reservoir-based plants located at lower elevations. These facilities would allow for water storage and controlled release, potentially reducing vulnerability to sudden glacial melt or heavy rainfall. However, such projects entail significant economic costs and environmental trade-offs.
Energy experts are increasingly advocating for diversification beyond hydropower. Kushal Gurung, founder of WindPower Nepal, argued that relying exclusively on one energy source is risky in an era of climate instability. He called for a revision of energy policy to embrace solar and wind alternatives. This view is supported by Vivek Shastry of Columbia University’s Center on Global Energy Policy, who noted that adding wind and solar generation can serve as a resilience strategy against single-point failures in the electricity system. A report from a German aid agency indicates that Nepal’s technical potential for solar energy production is roughly ten times larger than that of hydropower.
Despite these recommendations, some analysts warn that diversification has limits. Puspa Sharma, a senior research fellow at the National University of Singapore, emphasized that hydropower provides Nepal with a massive competitive advantage compared to its South Asian neighbors. While wind and solar have untapped potential, they may not fully replace the economic benefits derived from hydroelectric exports. The challenge lies in balancing the need for energy security with the desire to maintain a profitable export industry. Any shift away from hydropower must be carefully managed to avoid undermining the nation’s financial gains.
The human toll of the disaster extends beyond immediate casualties. Hundreds of laborers, engineers, and residents are believed to be trapped inside mud-filled tunnels within the damaged hydropower plants. Rescue efforts are complicated by the remote locations and unstable conditions. Former Energy Minister Kulman Ghising described the event as a once-in-a-century occurrence but stressed that it offers critical lessons for future infrastructure design. He advocated for more resilient plant designs, robust early-warning systems, and improved emergency evacuation measures to protect workers and communities.
Rebuilding efforts will require substantial financial resources. Nepal has indicated that billions in funding will be needed to restore damaged infrastructure and support affected communities. The disaster has forced a national conversation about the sustainability of current energy practices. While hydropower has been instrumental in modernizing Nepal’s grid, the recent floods highlight the dangers of concentrating critical infrastructure in climate-vulnerable zones. Moving forward, policymakers must weigh the benefits of hydroelectric dominance against the risks posed by a rapidly changing environment.
The path forward remains uncertain as stakeholders debate the best approach to energy resilience. Some argue for reinforcing existing hydropower facilities with better engineering and warning systems, while others push for a broader integration of renewable alternatives. The outcome of this debate will shape Nepal’s energy future and its ability to withstand similar disasters in the coming decades. As climate-related risks intensify, the nation must adapt its strategies to ensure both economic stability and public safety.
Immediate priorities include rescuing trapped individuals and assessing the full extent of infrastructure damage. Long-term planning will involve revisiting site selection criteria for new projects and potentially investing in diversified energy sources. The incident serves as a stark reminder that natural advantages can become liabilities if not managed with foresight. Nepal’s experience offers valuable insights for other regions dependent on climate-sensitive energy resources, highlighting the urgent need for adaptive infrastructure planning.
Sources behind this briefing
Go to the original reporting
- BBC World↗Nepal bet nearly everything on hydropower - the floods show why that's a problem
