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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- ORGANIZATION CHART
- GENERAL INFORMATION
- TECHNICAL STRUCTURE
- HYDRO-ELECTRO-MECHANICAL INFORMATION
- Project legislative documents
- Contractor
- Project milestones
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 | CFRD (Concrete Face Rockfill Dam) |
| Height | 210 m |
| Crest Length | 518.5 m |
| Crest Width | 10 m |
| Crest Level | 729.50 m |
| Headrace Canal | |
| Type | |
| Length | |
| Longitudinal Gradient | |
| Penstock | |
| Type | Embedded |
| Number of Pipe | 1 |
| Diameter | |
| Length | 1,134 m |
| 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 230 kV | |
| Elevation | |
| Dimension | |
| Powerhouse | |
| Installed Capacity | 480 MW |
| Number of Unit | 3 |
| Turbine Type | Vertical Francis |
| Max Powerhouse Discharge | 180 m³/s |
| Erection Floor Elevation | EL 354.70m to EL 400.50m of Rail top |
| 230KV Transmission Line | |
| Substation | NNG3 – NaBong |
| Length | 123 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
Main components of dams:
- Main dam
- Water intake
- Headrace tunnel
- Powerhouse
- Switch yard
- Transmission line system
Main components of dams:
- Main dam
- Water intake
- Headrace tunnel
- Powerhouse
- Switch yard
- Transmission line system
Main components of dams:
- Main dam
- Water intake
- Headrace tunnel
- Powerhouse
- Switch yard
- Transmission line system
Current construction progress overall 2022 to early 2023:
- Dam
- Powerhouse
- Installing Unit1, 2 and 3
- Overhead crane
- Transmission line
- Sub-station
