2 District Dhading/Nuwakot. 2 Purpose of the Project Generation and Transmission of Hydro Electric Power

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1 Project: Trishuli Galchhi Hydro Electric Project - 75 MW Specifications: 1 Location 1 Country Nepal 2 District Dhading/Nuwakot 3 Zone Bagmati 4 Stream Trishuli 5 River Trishuli 6 Latitude 7 Longitude - Weir 27 51'14" - Power House 27 48'26" - Weir 85 02'13" - Power House 84 58'20" 8 Nearest Village Dhodbesi 9 Nearest Town Trishuli Bidur (15km) 10 Nearest City Kathmandu (63 km) 11 Nearest Air- Port Kathmandu (63 km) 2 Purpose of the Project Generation and Transmission of Hydro Electric Power 3 Installed Capacity 2 x 37.5 MW 4 Annual Average Energy Generation WHr. 5 Hydrology 1 Catchment Area 5731 sqkm 2 Average Annual Rainfall Nuwakot mm Dhading 2124mm 3 Average Annual Yield 8400 Mcum 4 Design Power Discharge cumecs/ Unit, at rated head 5 Minimum Power Discharge cumecs/ Unit, at 30% design discharge 6 Maximum design Flood (at main Weir site) 5100 cumecs 6 Diversion Weir 1 Location Weir across Trishuli, near Dhodbesi, in Dhading/Nuwakot District, 15km 1 P a g e

2 from Trishuli Bidur. 2 Barrage Structure with gates and sheet piles water sealing through the dam 3 FRL EL m 4 MWL EL m 5 MDDL / MOL EL m 6 Top of Overflow Section EL m 7 Weir Crest EL m 8 Deepest Foundation Level EL m 9 Height of the weir (from deepest foundation level) 24.5 m 10 Length of Overflow Section m 11 Length of Non overflow Section m 12 Total Length m 13 Flood discharge capacity of Weir 5100 cumecs 14 Energy Dissipating Arrangement Stilling Basin 15 Spillway Gates i)service Gates a)nos. 8 b) Radial gate c) 12.0 m x 5.50m d)sill Level e) platform Level f) EL m EL m Rope drum ii)stop Log Gate a)nos. 2 b) Vertical Lift Gate c) 12.0 m x 6.00m d)sill Level e) platform Level f) EL m EL m 7 De-Silting Chamber Intake i) Nos. 2 ii) Sill Level EL m 2 P a g e

3 iii) Bridge Level iv) Design Discharge EL m cumecs/each compartment v) Gates (a) Service Gate Nos m x 8.00 m (b) Stop log Gate Nos. 1 8 De-Silting Chamber m x 8.00 m RCC 2 Shape Rectangular 3 Nos 2 4 Length 180m, Width 20m 5 Flow Free Flow 6 Depth of flow 12.7 m 9 Silt Flushing Arrangement (i) Gate Nos m x 3.00 m 10 HRT Intake i) Nos. 1 ii) Sill Level iii) Bridge Level iv) Design Discharge EL m EL m cumecs v) Gates 3 P a g e

4 (a) Service Gate 7.90 m x 7.90 m Rope drum hoist (b) Stop log Gate Nos m x m Rope drum hoist 11 Head Race Tunnel (HRT) 1 RCC Lined Tunnel 2 Shape Horse shoe m dia 4 Thickness 350mm 5 Flow Pressure Flow 6 Length m 7 Invert level at start EL m 6 Invert level at end EL m 7 Bed Gradient 1 in Surge Shaft 1 Orifice 2 Diameter 30.0 m Dia 3 Max. Surge Level EL m 4 Min Surge Level EL m 5 Invert level EL m 5 Height 60.9m 6 Wall Thickness 500mm 7 of Wall RCC M-20, A Penstock Tunnel 1 CC lined, 350mm thick. 2 Shape Horse Shoe m dia 4 Flow Pressure Flow 5 Length m 4 P a g e

5 6 Bed slope 1 in Penstocks 1 Steel Penstock, buried 2 No. of Penstock 1 3 Internal Dia m 4 Inclined Length m 5 Shell Thickness 32, 40 mm 6 Branch line Dia Thickness Length (Total) 4.5 m 28 mm m 15 Power House 1 Location Just near the Prithvi Highway connecting Kathmandu-Pokhara and near Handikholagaun village 2 Surface type 3 of Machine Hall(outer to outer) m x m 4 of Service Bay m x m 5 of Control room m x 5.5 m 6 No. of Bays 2 unit bays and one Service bay 7 No. of Units and Capacity 2 Units of kw each 8 El. Of Turbine C/L EL m 9 Generator Floor Level EL m 10 Control Room Floor Level EL m 11 Service/Equipment handling Bay EL m 12 Draft tube floor Level EL m 13 HFL EL m 14 Max. TWL (two units) EL m 15 Min TWL EL m 16 Draft Tube Gates a)nos. 4 b) c) d)sill Level Vertical Lift Gate m X m EL m 5 P a g e

6 e) Level f) EL m 17 Tail Race Pool 1 Length m 2 Max. TWL (two units) EL m 3 Bed Width 38.3 m 4 Side Slopes i ) Rock- 1(V):0.25(H) ii ) Soil -1(V):1(H) 5 Design Discharge cumecs 6 Bed Slope 1 in 3 7 Bed Levels Varying from EL m to EL m 18 Turbines 1 Vertical Francis 2 Rated Output kw 3 Maximum Net Head m 4 Minimum Net Head m 5 Rated Head m 6 Rated Discharge per unit cumecs 7 Maximum Discharge per unit cumecs 8 Rated Speed 150 rpm 9 Runner Dia 3600 mm 10 Efficiency at rated output 93 % 19 Generators 1 Synchronous 2 Rated Output kw 3 Generation Voltage 11 kv 4 Rated Speed 150 rpm 5 Efficiency 97 % 20 Transmission Lines 1 Length 3. km 2 Terminal Point 132 kv substation at Galchhi kv Double Circuit Line 21 Out Door Yard 6 P a g e

7 m x 39.5m 2 No. of Power Transformers 2 3 Capacity of Power Transformer 50 MVA 4 Step up Voltage of Transformer 132 kv 22 Cost 1 Estimated cost of Civil Works in NRs(000) Estimated cost of E & M Works in NRs(000) Estimated cost of T -Transmission in NRs(000) Total Project Cost in NRs(000) 23 Energy (PPA) Total Energy Generation GWHr 2 Salable Energy GWHr 24 Implementation Schedule 42 Months from Zero date Thanks for your interest in our services. Please do reach us at Design Group Project Consultants (P) Ltd. 110/4, M. Krishnappa Layout, Lalbagh Road, Bangalore India. Phone: , , Fax: designgroup@vsnl.com 7 P a g e