Development projects Ghaghara

cable-stayed bridge on karnali river in chisapani, western nepal

the karnali basin first arouse keen interest in nepal s vast hydropower development study. there several attractive sites generation of cheap hydroelectric energy in basin.

the master plan study water resource development of upper karnali river , mahakali river basins (1993) identified 32 potential hydropower projects in karnali basin. despite high potential of hydrower development (32,000 mw) in basin, 2,245 kw capacities (from 8 micro hydel schemes) has been developed far.

considering pace of hydropower development in nepal (out of 83,000 mw potential, 705 mw hydropower has been generated throughout country till end of 12th national plan viz. 2009/10-2011-12) in general , in karnali basin in particular, harnessing total hydropower potential of basin envisaged take long time. based on recent water resources development planning , project progress, large scale hydropower projects operational in basin 2025 predicted be: west seti hep (750 mw); upper karnali hep (300 mw); bheri-babai multipurpose project (48 mw); , lohore khola hep (58 mw).

west seti hep (750 mw)

the proposed west seti hep located on seti river in far-western development region of nepal. west seti hep catchment covers upper 4,022 square kilometres (1,553 sq mi) of seti river basin. west seti hep large storage project rated capacity of 750 mw. power station located approximately 63 kilometres (39 mi) upstream of seti river confluence karnali river, dam site located further 19.2 kilometres (11.9 mi) upstream. project sites, excluding reservoir area , transmission line corridor, located in either doti and/or dadeldhura districts. reservoir area located in doti, dadeldhura, baitadi , bajhang districts. transmission line corridor located in doti, dadeldhura, kailali , kanchanpur districts. project has been allocated development boot project under private sector.

upper karnali hep (900 mw)

the proposed upper karnali hep located on main course of karnali river , has catchment area of 20,120 square kilometres (7,770 sq mi). project 1 of nepal s economically attractive runof- river diversion schemes (900 mw), daily peaking capacity , high firm energy. project facilities located in 3 districts: surkhet, dailekh , achham. project hydrology based on data station 240 @ asaraghat. river snow fed , mean annual estimated flow @ headworks 500 cubic metres per second (18,000 cu ft/s). project has been allocated gmr of india development on boot basis.

bheri-babai multipurpose project (48 mw)

the bheri-babai multipurpose project inter-basin water transfer project prioritised development of irrigation in bardia district . intake of bheri-babai (br-1) diversion scheme lies on bheri river 45 kilometres (28 mi) upstream of confluence karnali river. tailrace outlet located in babai river 20 kilometres (12 mi) upstream of existing babai irrigation project diversion weir. bheri-babai project aims generate electricity , supply additional water babai irrigation scheme in terai diverting 40 cubic metres per second (1,400 cu ft/s) of water bheri river babai river. project yet undergo feasibility study.

lohore khola hep (lr-1) – (58 mw)

the lohore khola hep proposed reservoir storage project situated on lohore khola, tributary of karnali river in dailekh district. project located few kilometers downstream confluence chham river , upstream of dungeshowr. catchment area of lohore river @ reservoir site 733 square kilometres (283 sq mi). based on isohyetal map of karnali river basin, average annual rainfall basin estimated 1,539 millimetres (60.6 in). there no stream gauge on lohore river, flow estimated using data station 240 (1963–2000) located on karnali river @ asaraghat catchment area of 19,260 square kilometres (7,440 sq mi). sediment flow river estimated 2.4 million tonnes per year. economic internal rate of return (eirr) project highest draft rate of 0.7, flow power generation estimated draft rate. riparian flow assumed 10 percent of monthly minimum flow; i.e., 0.53 cubic metres per second (19 cu ft/s).

karnali (chisapani) multipurpose project (10,800 mw)

the site of karnali multipurpose project, chisapani dam project, located in karnali gorge, upstream of terai. project has catchment area of 43,679 square kilometres (16,865 sq mi), covering 30 percent of nepal. long-term average river flow 1,389 cubic metres per second (49,100 cu ft/s), average dry season flow (november–may) of 451 cubic metres per second (15,900 cu ft/s) , average wet season flow (june–october) of 2,690 cubic metres per second (95,000 cu ft/s).

the karnali (chisapani) multipurpose project potential mega multipurpose storage project on karnali river @ chisapani, envisaging 270-metre (890 ft) high dam, reservoir area of 350 square kilometres (140 sq mi), power station operating under design head of 185 metres (607 ft) operate 18 units of 620 mw capacity each ( 10,800 mw installed capacity) , re-regulating weir downstream power plant of 84 mw capacity operating under head of 13.5 metres (44 ft). large-scale irrigation development envisaged—2,380 square kilometres (920 sq mi) in nepal , 32,000 square kilometres (12,000 sq mi) in india. project planning commenced in 1960, although feasibility study project completed in 1989. before project developed number of significant underlying issues have resolved. these issues include: nepal , india reaching bilateral agreement on downstream benefits of regulated river flows; resettlement of on 60,000 people; impact on , restoration of habitat within bardia national park; and, above all, financial arrangements project funding. accordingly, predicted chances of project being implemented before 2025 slim, although increasing international pressure on reducing greenhouse gas (ghg) emissions energy generation sector may assist project initiation. while likelihood of project being developed 2025 low, nepal , india cooperate develop project meet india’s growing energy demand renewable resources.