NAM NGUM 3

PROJECT COST

$1,400 M

AVERAGE ANNUAL ENERGY

2,345 GWh

DAM HEIGHT

210 M

CATCHMENT AREA

3,913 Km2

Installed Capacity

480 MW

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In Progress

Project Cost $1,400 Million
Shareholder CSE 55%, EDL 20%, EGATi 25%
Installed Capacity 480 MW
Average Annual Energy 2,345 GWh
Maximum Turbine Discharge 180 m3/s
Rated Head 301 m
Turbine Type Vertical Francis x 3 Units
Offertaker EDL
Catchment Area 3,913 Km2
Annual Average Rain Fall 2,593 mm
Annual Average Discharge 110 m³/s
Reservoir Storage Capacity 1,411 Million m3
Reservoir Surface Area 27.5 Km2
Full Supply Level 723 m a.s.l
Minimum Operating Level 670 m a.s.l
Main Dam
Type Concrete Hyperbolical arch dam
Height 208m
Crest Lenght 395m
Crest Width 10m
Crest Level 729.50m
Headrace Canal
Type
Length
Longitudinal Gradient
Penstock
Type
Number of Pipe
Diameter
Length
Longitudinal Gradient
Spillway
Type
Number of Gate 1/3 Nr (one set 2x800kN and Three sets 2x3200kN
Design Flood Discharge 4860 m3/s
Headrace Tunnel
Type Reinforced concrete
Design Discharge 179.6 (m3/s)
Diameter 9.1m – 8.1m – 8.5m
Length 1/10516.8 No./m
Tailrace Channel
Type
Length
Switchyard 115 kV
Elevation
Dimension
Powerhouse
Installed Capacity 480 MW
Number of Unit 3
Turbine Type Vertical Pelton
Max Powerhouse Discharge 180 m³/s
Erection Floor Elevation EL 354.70m to EL 400.50m of Rail top
230KV Transmission Line
Substation Ban Naphia ( Xieng Khuang )
Length 110 Km
Circuit Type Double Circuit

Legislative documents

  • On March 25, 2014, the Feasibility study of the project was approved
  • On July 9, 2014, received the environmental certificate
  • In June 2014, completed the environmental management and monitoring plans.
  • In August 2014, the environmental impact assessment report was completed

Main Contractor

Main Contractor : (Hoang Anh Gia Lai Hydropower Joint Stock Company)

  • Civil work,
  • Electrical system,
  • Mechanical,
  • Hight Voltage Transmission line 22 kW.
  • 115 kW.

Engineer Design and Supervisor

  • (Basic design): East Asia Investment and Construction Consultant JSC
  • Construction Supervisor: (Owner Engineer & Construction Supervision): East Asia Investment and Construction Consultant JSC
  •  Repair contractors:
  • Supervisors by: (Owner Engineer & Construction Supervision)ILF Consulting Engineers:
  • Headrace Tunnel,  Grouting, Slope Protection,  Civil work, Bottom Outlet: Right Tunnelling Co., Ltd.
  •  Bottom Outlet: Whessoe Lao Sole Co., Ltd.:
  • (Dam Instrument)Nari Group Corporation:
  • (Dam Instrument) Siam Tone Co., Ltd.:
  • Mechanical Work and Commissioning: Asia Motor Service Center Co., Ltd.
  • Repair and Inspection (Power House), (Switchyard): Tonnam Energy Part., Ltd.

ກຳລັງອັບໂຫລດຂໍ້ມູນ

Project progress

Main components of dams:

  • Main dam
  • Water intake
  • Headrace tunnel
  • Powerhouse
  • Switch yard
  • Transmission line system

10%

Main components of dams:

  • Main dam
  • Water intake
  • Headrace tunnel
  • Powerhouse
  • Switch yard
  • Transmission line system

30%

Main components of dams:

  • Main dam
  • Water intake
  • Headrace tunnel
  • Powerhouse
  • Switch yard
  • Transmission line system

50%

Main components of dams:

  • Main dam
  • Water intake
  • Headrace tunnel
  • Powerhouse
  • Switch yard
  • Transmission line system

66.68%

Contact Us

CSE Building, Nongbon Road, Unit 8, Nongbon Village, Xaysettha District Vientiane, Lao PDR.

+856 (0) 21 417788 or 417789
headoffice@csenergy.la