Apart from climate impacts on hydropower production, climate- induced flood loads and reservoir water level change may lead to dam failure under RCP2.6 and RCP4.5 scenarios  . For example, the incidence of 100-year floods in the Skagit River basin in the USA and peak winter sediments are projected to increase by 49% and 335%, respectively, by 2080, necessitating fundamental changes in hydropower plant operation. Nevertheless, some risks, such as floods, will remain unmitigated even with changes in hydropower operation rules . Overall, impacts of future extreme events on energy infrastructure have been less studied than impacts of gradual changes . Furthermore, future hydropower development may also impact areas of high freshwater megafauna in South America, South and East Asia and in the Balkan region, and sub-catchments with a high share of threatened freshwater species are
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report