Hydro power plants located on the Himalayan rivers, typically, have had to endure high silt content in the water passing through the turbines causing enormous damages to the under-water parts of the turbine. The hydro power generating companies are engaged in mitigating this menance and optimizing generation and profits.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/silt-damage-control-measures-underwater-parts-nathpa-jhakri-hydro-power-station-case
[2] http://admin.indiaenvironmentportal.org.in/category/author/r-p-singh
[3] http://admin.indiaenvironmentportal.org.in/category/journal/water-and-energy-international
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/dams-irrigation
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sedimentation
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/turbines
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nathpa-jhakri-hp
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/satluj-jal-vidyut-nigam