Posted by: Geology Tiger March 15, 2011
Japan disaster reopens nuclear debate in Europe and US
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Well our rivers have the highest sediment flux in the world and this is a major concern for reservoir-based hydro electricity projects like Kulekhani. Kulekhani has already lost huge storage capacity due to siltation. And it is too expensive to flush out sediment from the reservoir. Perhaps the engineers involved in Kulekhani project couldn't understand the vulenarability of our mountain systems. The erosion rate of our moutains is increasing day after day due to consequences of global climatic changes. However, it is fact that we need more reservoir-based hydro electricity projects than run-of-the river type projects to meet our winter demand.

While talking about size of the hydro electricity projects, I think we shouldn't stick to any particular scale rather we should have mixed approach. We need hydro electricity projects of all different scales to fulfill different types of requirements. If we are thinking to provide electricity to one small village or any particular locality and if there is potential of small scale hydroelectricity generation, it will be lot easier and cheaper to produce electricity locally than constructing transmission line from national grid. I think this is the most efficient and environmentally friendly way to provide electricity in remote parts of Nepal.

However, only small scale hydro projects can't supply all power that we need for our industries. So we should be eyeing on some of the middle-sized cheap projects to develop ourselves, I mean ourselves without any financial involment of any other country or international financial institutions. And finally we should be also thinking about some GW-scale multi hydro projects for which we need to have good understanding with India both for the project development and sharing of resources. 
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