Enhancing Hydropower Efficiency

Sediment is a huge challenge for hydropower projects in South Asia, especially in the Himalayan region. Himalayan rivers across Pakistan, India and Nepal carry huge amounts of sediment that lead to an erosion of turbine runners, a rise in the river bed level that can increase flooding risk as well as sediment settling in reservoirs, leading to reduced storage capacity and sediment flow downstream. Apart from measuring and modelling the sources of, in this case, the constitution of the sediment is also important; for instance concentration of harder and courser sediment such as quartz particles are more detrimental to turbines.

Hydropower and sediment