Upper Tamakoshi HEP

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    Nepal Electricity Authority (NEA) has established an autonomous company named Upper Tamakoshi Hydropower Limited (UTKHPL) in March 2007 (2063/11/25 B.S.) as an executing agency for the implementation of the Project. There are six full time and two invitee members in the Board of Directors (BoD) at present. Out of six full time members, four members from NEA, one from Employees Provident Fund (EPF) and one from Nepal Telecom (NTC) are representing in the BoD. Similarly, representatives of Citizen Investment Trust (CIT) and Rastriya Beema Sansthan (RBS) are also in the BoD as invitee members.

    Salient Features

    Type of Development = Peaking Run-of-River (PRoR)
    Location = Lamabagar VDC, Dolakha District, Janakpur Zone, Central Development Region
    Headworks Location = Lamabagar, Lamabagar VDC
    Powerhouse Location = Gongar Gaon, Lamabagar VDC
    Maximum Output = 456 MW
    Annual Energy = 2,281 GWh
    Gross Head = 822 m
    Design Discharge = 66.0 m 3 /sec
    Hydrology
    Catchment Area = 1,745 km 2
    Min. Mean Monthly Flow = 14.1 m 3/sec.
    Mean Annual Flow = 67.2 m3/sec.
    Design flood Q1,000 = 885.0 m3/sec
    Diversion Dam = 22 m x 60.0 m (H x L)
    Live Storage = 1.2 Million m3
    Settling Basins = 2 Nos. L=225 m
    Headrace Tunnel = 7.9 km (Cross Sectional Area = 32.14 m2)
    Penstock (Vertical Shaft and Horizontal Tunnel) = 714.0 m
    Power House (Underground) = 142.0m x 13.0m x 25.0 m
    (L x B x H)
    Number of units = 6
    Tailrace Tunnel = 2.9 km (Cross Sectional Area = 35.0 m2)
    Access Road from Charikot of Dolakha District = 68.0 km
    Transmission line = 220 kVA Double Circuit, 47.0 km (Gongar to Khimti Substation)
    Construction Cost = NRs.35.29 Billion equivalent to US$ 441 Million (Excluding Interest During Construction)
    Construction Time Period = 5 Years

    Website : http://www.tamakoshihydro.org.np