PROJECT COST
$142.527 M
AVERAGE ANNUAL ENERGY
288 GWh
DAM HEIGHT
50 M
CATCHMENT AREA
861 Km2
Installed capacity
66 MW
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- ORGANIZATION CHART
- GENERAL INFORMATION
- TECHNICAL STRUCTURE
- HYDRO-ELECTRO-MECHANICAL INFORMATION
- Legislative Document
- Total recipients and sub-recipients
- Important steps of the project
| Project Cost | $142.527 Million |
| Shareholder | CSE 100% |
| Installed capacity | 66 MW |
| Annual energy average | 288 GWh |
| Max power generator | 76.20 m³/s |
| The water level | 98.8 m |
| Type of Turbine | Francis 3 Unit |
| Offer taker | EVN |
| Catchment Area | 200.8 Km2 |
| Annual Average Rain Fall | 2,315 mm |
| Annual Average Discharge | 36.6 m³/s |
| Reservoir Storage Capacity | 71.4 Million m³ |
| Reservoir Storage Capacity | 4.2 Km2 |
| Full Supply Level | 427 m a.s.l |
| Min Operating level | 420 m a.s.l |
| Main Dam | |
| Type | Gravity Concrete |
| Height | 65 m |
| Crest Length | 280 m |
| Headrace Canal | |
| Type | Exposed Excavation |
| Length | 114 m |
| Longitudinal Gradient | 0.001% |
| Penstock | |
| Type | Steel Liner |
| Number of Pipe | 1 |
| Diameter | 4.2 m |
| Length | 370 m |
| Spillway | |
| Type | Sluice Gate |
| Number of Gate | 4 |
| Design Flood Discharge p=0,1% | 3,780 m³/s |
| Headrace Tunnel | |
| Type | Reinforced Concrete |
| Design Discharge | 76.2 m³/s |
| Diameter | 5.4 – 4.2 m |
| Length | 1,430 m |
| Tailrace Canal | |
| Type | Open Canal |
| Length | 205 m |
| Switchyard 115 kV | |
| Elevation | 354.5 m a.s.l |
| Dimension | 55m X 40m |
| Powerhouse | |
| Installed Capacity | 66 MW |
| Number of Units | 3 Unit |
| Turbine Type | Vertical Francis |
| Max Powerhouse Discharge | 76.2 m³/s |
| Erection Floor Elevation | 324.5 m a.s.l |
| 115 KV Transmission Line | |
| Substation | Sapaothong Substation |
| Length | 36 Km |
| Circuit Type | Single Circuit |
| Conductor Size | 240 mm2 |
Legislative Document
- On 19/1/2010 Memorandum of Understanding (MOU)
- In 2010 Project Development Agreement (PDA)
- On 31/1/2013 Concession Agreement (CA)
- On 3/4/2011 Power Purchase Agreement (PPA)
- On 11/2011, construction started
- On 06/2018, the construction was completed
- On 20/7/2018 Commercial operation date (COD)
Main Contractor
Main Contractor: Hoang Anh Gia Lai Hydropower Joint Stock Company.
- All of Construction structural work items (Civil Work);
- Electrical system.
- Mechanical systems.
- High voltage transmission line 22 kWh.
- 115 kWh.
Designers and supervisors
- Construction design (Basic design): East Asia Investment and Construction Consultant JSC.
- Construction Supervision (Owner Engineer & Construction Supervision): East Asia Investment and Construction Consultant JSC.
Repair contractor
- Construction Supervision (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.:
- Procurement of dam measuring equipment (Dam Instrument) Nari Group Corporation
- Installation of dam measuring equipment (Dam Instrument) Siam Tone Co., Ltd.:
- Checking, repairing and testing the engine. Asia Motor Service Center Co., Ltd.: (Mechanical Work and Commissioning).
- Inspection and repair of electrical systems in Powerhouses, inspection and repair work (Switchyard): Tonnam Energy Part., Ltd.
Important steps of the project
- On 31-January-2013, the Nam Kong 2 Hydropower Project has a concession agreement with the Government of the Lao PDR;
- The original developer was Hong Anh Attapeu Electric Company Limited;
- In 2011, construction of the Nam Kong 2 hydropower project began;
- In 2016, Chaluen Sekong Power Company became a 100% shareholder from Hong Anh Attapeu Electric Co., Ltd. and continued to build 10% of the unfinished work until it was completed;
- In June 2018 completed construction;
- In June 2018 Experiment with electricity generation
- On July 20, 2018 Commercial operation date (COD)
