Abstract
Nepal has a considerable hydropower potentiality, however the analysis of Kaligandaki River Basin optimization of power potentiality and subsequently identified two critical impacts of climate change-GLOF’s and variability of runoff along with temperature difference are most pronounced during the dry winter season, and least during the height of the monsoon. In Himalaya region the Intergovernmental Panel on Climate Change (IPCC) has indicated that global warming is occurring relatively faster in recent decades, with the rate of temperature increase being greater in the high altitude Himalaya, then lowland parts of Nepal [1].
Highlights
Nepal’s vast water resources seems to electricity generation is almost dominated by hydropower and most of the hydropower systems installed are based on run-off-river (RoR) type
Most of the hydropower projects are in critical danger from impacts of changing climatic parameters
Secondary data of the rainfall were taken from Department of Hydrology and Metrology (DHM)
Summary
Nepal’s vast water resources seems to electricity generation is almost dominated by hydropower and most of the hydropower systems installed are based on run-off-river (RoR) type. There are mainly two climatic factors that contribute to increased variability of river runoff: glacier retreat and change in timing and/or intensity of precipitation. Most of the hydropower projects are in critical danger from impacts of changing climatic parameters. There is a general shortage of electricity during winter and dangers of spill in wet season. The large seasonal variation in electricity generation in Nepal results in acute power crisis during dry months. Before melting of snow and when there is less rainfall during winter, the discharge level in the river decreases resulting in very less production of
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