What are the problems of hydropower generation in nepal?​

Most of the hydropower plants in the Himalayan Rivers are affected by excessive rate of sedimentation which primarily decreases the capacity of reservoir and fundamentally causes erosion of causing reduction in efficiency and life of turbine the turbine components.

Explanation:

early settlements on the subcontinent. both the indus and the ganges rivers carried rich silt from the mountains to the plains. when the rivers flooded, the silt spread over the plains and made the soil in the river valleys fertile for farming.