salient feature

Salient feature

Project Overview:

  • Project Name: Bhotekoshi-1 Hydropower Project
  • Location: Sindhupalchowk District, Bhotekoshi Rural Municipality
  • Type of Development: Run-of-the-river

Accessibility:

  • The project site is accessible from Kathmandu, situated 105.7 km away via the Araniko Highway.

Transmission Line:

  • Length: 2.5 km of 132 kV single circuit transmission line
  • Connection: Nearest 132 kV switchyard of Upper Chaku Khola Hydroelectric Project (22 MW)

Hydrology:

  • Catchment Area at Intake Site: 2210 km²
  • Flood Discharge: 1604 m³/s (Q500 flow)

General Hydraulics:

  • Gross Head: 115.00 m
  • Net Head: 105.034 m
  • Design Flow: 43.98 m³/s
  • Capacity: 40 MW

Major Structures:

  • Diversion Weir: 40 m long, 7.0 m high
  • Settling Basin: Surface type with 3 bays, 90% trap efficiency
  • Headrace Tunnel: 2942.57 m long, inverted D-shaped
  • Powerhouse: Underground, 40.00 m x 14.70 m x 30.00 m

Equipment:

  • Turbines: Francis type, 2 units, each with 20.9 MW output and 91% efficiency
  • Generators: Brushless synchronous, 2 units, 23.53 MVA capacity each
  • Transformers: Three-phase, 2 units, 25.8 MVA capacity, 11/132 kV

Energy Output:

  • Annual Energy: 231.81 GWh
  • Dry Energy: 69.97 GWh
  • Wet Energy: 161.84 GWh

Financial Parameters:

  • Total Project Cost: NRs. 7.975 billion with IDC
  • Cost per MW: NRs. 199,375,126.61
  • Net Present Value (NPV) @ 10%: 2742.716 million NRs.
  • Project IRR: 14.42%
  • Equity IRR: 21.77%
  • Benefit-Cost Ratio: 1.42
  • DSCR (Average): 1.63
  • Simple Payback Period: 6.13 years
  • Discounted Payback Period: 9.45 years