Introduce about
Nam Kong 2
Lamong Village, Phouvong District, Attapeu Province
Nam Kong 2 HPP is the second which built on Nam Kong river from upstream. The Nam Kong River is originated from mountain ranges of 891m above the sea level, run in East-West direction and confluences with the Se Kong River in Sanamxai District. Nam Kong basin is arranged in the territory of Phoukodon District, Attapeau Province, Lao PDR one of two northern end provinces of Lao PDR. Nam Kong catchment area up to Nam Kong 2 dam site is 861km2; Main River Length is 69.8 km. The project is located approximately 40km far from the center of Attapeau Province and 25km from PhuVong District in south direction.
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$142.53 M
Project Cost
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66 MW
Installed Capacity
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263 GWh
Average Annual Energy
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65 M
Dam Height
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263 GWh
Reservoir Surface Area
ORGANIZATION CHART
GENERAL INFORMATION
| Project Cost | $142.53 M |
| Shareholder | CSE 100% |
| Installed Capacity | 66 MW |
| Average Annual Energy | 263.12 GWh |
| Design | 76.20 m3/s |
| Rated Head | 98.8 m |
| Turbine Type | Nam Kong 2 - Chaleun Sekong Energy Co., LTD |
| Offtaker | EDL |
| Catchment Area | 861 Km2 |
| Annual Average Rain Fall | 2,315 mm |
| Annual Average Discharge | 36.6 m3/s |
| Reservoir Storage Capacity | 71.4 Million m3 |
| Reservoir Surface Area | 71.4 Million m3 |
| Full Supply Level | 427 m a.s.l |
| Minimum Operating Level | 420 m a.s.l |
| 315 |
TECHNICAL
STRUCTURE
| Main Dam | |
| Type | Gravity Concrete |
| Height | 65 m |
| Crest Length | 280 m |
| Headrace Channel | |
| Type | Exposed Excavation |
| Lenght | 114 m |
| Longitudinal Gradient | 0,001 |
| Penstock | |
| Type | Steel Liner |
| Number of cell | 1 |
| Diameter | 4.2 m |
| Length | 370 |
| Longitudinal Gradient | – |
| Spillway | |
| Type | Sluice Gate |
| Number of Gate | 4 |
| Maximum Discharge | 3.780 m3/s |
| Headrace Tunnel(none) | |
| Type | Reinforced Concrete |
| Design Discharge | 76.2 m3/s |
| Diameter | 5.4 - 4.2 m |
| Length | 1,430 m |
| Tailrace Channel (none) | |
| Type | Open Channel |
| Length | 205 m |
| Switchyard 115kV | |
| Elevation | 354.5 m a.s.l |
| Dimension | 55m x 40m |
Hydro-Electro-Mechanical
Information
| Powerhouse | |
| Installed Capacity | 66 MW |
| Number of Units | 3 |
| Turbine Type | Vertical Francis |
| Max Discharge | 76.2 m3/s |
| Erection Floor Elevation | 324.5 m a.s.l |
| 115KV Transmission Line | |
| Substation | Sapaothong Substation |
| Length | 68 Km |
| Number of circuit | Single Circuit |
| Conductor Size | 240 mm2 |
