Gelun Khola Hydropower Project

Excellent 1. SAILENT FEATURES OF GELUN KHOLA SMALL HYDROPOWER PROJECT: 1 Project Location Development Region : Central Zone : Bagmati District : Sindhupalchowk Intake Site : Ghiche, Hagam VDC Powerhouse Site : Simle, Baramchi VDC Geological Coordinates Latitude : 27o49’30”N to 27o50’40”N Longitude : 85o46’30”N to 85o49’15”N 2 General Name of River : GelunKhola Nearest Town : Baramchi Bazaar Type of Scheme : Run-of-river Gross Head : 783.9 m Rated Net Head : 733.18 m Installed Capacity : 3200 kW Net Average Annual Energy : 17.103GWh 3 Hydrology Catchment Area : 10.5 Km2 Mean Annual Discharge : 0.74 m3/s Design Discharge : 0.51 m3/s Probability of Exceedance : 40 % Design Flood Discharge : 52 m3/s (100 Yr. flood) 4 Diversion Weir Type of Weir : Free Overflow Gravity Type Length of Weir : 13.0 m Height of Overflow Weir : 2.5 m (Excluding Foundation) Weir Crest Level : 1,655.5 m Top Level of Wing Wall : 1,658.0 m 5 Intake 1.GelunKhola Side Intake Size (L x H) : 1m x 0.8 m (1 No.) Sill Level :1,670.65 m 2. GhichheKhola: Bottom Rack/Tyrolean: Size (L x B) : 3m x 1.5 m Crest Elevation : 1,680.00 m 3.SimGhattaKhola Bottom Rack/Tyrolean Size (L x B) : 2 m x 1 m Crest Elevation : 1,658.00 m 6 Gravel Trap/Approach Culvert/Emergency Spillway Type of Gravel Trap :RCC Rectangular Dimension (L x B x H) m : 8.0 m x 1.6 m x 2.19 m Particle Size to be Settled : 5 mm Length of approach Canal : 45.00m Size (B x H) : 0.9 m x 1.3 m Crest Length of Spillway : 6.0 m Crest Elevation : 1,671.38 m 7 Desilting Basin Type : Hopper Type No of Chamber : 2 Dimension (L x B x H) m : 30.0 m x 3.15 m x 2.50 m Particle Size to be Settled : 0.15 mm 8 Headrace Pipe Type : Supported Steel Pipe Length : 2680 m Diameter: :0.638 m(CH-0+000.00 to 0+904.80) :0.628 m(CH-0+904.80 to 2+024.20) : 0.618m(CH-2+024.20 to 2+680.00) Thickness : 6 mm 9 Forebay--- Type : Rectangular Size (L x W x H) : 9.0 m x4.0 m x 5.0 m Normal Water Level : 1,645.60 m 10 Penstock Type : Supported Steel Lined Length : 2586.80 m (Excluding Bifurcation) Diameter :0.560 m(CH-0+000.00 to 1+647.20) : 0.522m(CH-1+647.20 to 2+204.00) : 0.508m(CH-2+204.00 to 2+586.80) Thickness : 6 –26 mm 11 Powerhouse Type : Surface Size (L x B x H) : 20.5 m x 9.0 m x 10.85 m 12 Tailrace Canal Type : Rectangular RCC Length : 42.5 m Size (W x H) : 1.0 m x 0.6 m 13 Turbine Type : Horizontal Axis Pelton Number : Two Rated Output Capacity per Unit : 1,700 kW Efficiency : 90 % 14 Governor Type : Electro-hydraulic with PID System, Adjustment for Speed Droop : Between 0 to 5% 15 Generator Type : Synchronous, Three phase Rated output capacity per unit : 2,000 kVA Power factor : 0.80 Voltage : 6.6 kV Frequency : 50 Hz. No of units : Two Efficiency : 96.0 % 16 Transformer Rated capacity : 4,200 kVA Three Phase x 1 Voltage ratio : 6.3/ 33 kV Efficiency : 99 % 17 Transmission Line Voltage level : 33 kV Length (approx.) : 12 Km From : Powerhouse (HEP) To : Chautara Sub-Station Conductor : ACSR "DOG" 18 Project Cost Estimate Total Project Cost with Interest : NRs. 49,58,23,000.00 Project Cost without Interest : NRs. 45,39,76,000.00 Loan Approved (with CEDBL on 2069/06/24) : NRs. 34,50,00,000.00 Annual Project Income : NRs. 9,04,00,000.00

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