Project Cost
$102 M
Annual energy average
144 GWh
Height DAM
30 M
drainage area
336 Km2
Installed capacity
44 MW
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- ORGANIZATION CHART
- GENERAL INFORMATION
- TECHNICAL STRUCTURE
- HYDRO-ELECTRO-MECHANICAL INFORMATION
- Project legislative documents
- Contractor
- Project milestones
| Project Cost | $102 Million |
| Shareholder | CSE 100% |
| Installed capacity | 44 MW |
| Annual energy average | 144 GWh |
| Max power generator | 36.70 m³/s |
| The water level | 150 m |
| Type of Turbine | Vertical Francis 5 Unit |
| Offer taker | EDL |
| Catchment Area | 336 Km2 |
| Annual Average Rain Fall | 1,320 mm |
| Mean Annual precipitation | 36.6 m³/s |
| Reservoir Storage Capacity | 13.85 Million m³ |
| Reservoir Storage area | 1.8 Km2 |
| Full Supply Level | 1,050 m a.s.l |
| Min Operating level | 1,048 m a.s.l |
| Main Dam | |
| Type | Earth till Dam |
| Height | 30 m |
| Crest Length | 110 m |
| Headrace Canal | |
| Type | Open Canal & Box culvert |
| Length | 1,100 m |
| Open Canal | 600 m |
| Box culvert | 500 m |
| Canal slope | … |
| Penstock | |
| Type | Steel Liner |
| Number of Pipe | 1 |
| Diameter | 3.00 m |
| Length | 450 m |
| Spillway | |
| Type | Steel Sluice Gate |
| Number of Gate | 2 |
| Maximum Discharge | 450 m³/s |
| Switchyard 115 kV | |
| Elevation | 904.60 m a.s.l |
| Dimension | 45m X 54m |
| Powerhouse | |
| Installed Capacity | 44 MW |
| Number of Unit | 5 Unit |
| Turbine Type |
Vertical Francis 3 & horizontal Francis 2 |
| Max Powerhouse Discharge | 34 m³/s |
| Erection Floor Elevation | 901.60 m a.s.l |
| 115 KV Transmission Line | |
| Substation | NAHO |
| Length | 3 Km |
| Number of circuits | 1 |
| Conductor Size | 240 mm2 |
Legislative Document
- The last version of FS was approved in June 2010.
- Received environmental certification on April 20, 2012.
- The Nam Ngeip 3A Hydropower Project has a concession agreement with the Government of the Lao PDR on 28 November 2013.
- On April 26, 2013, Nam Ngiep 3A was signed a power purchase agreement with EDL.
- Signed a land lease agreement on 5 July 2013.
Total recipients and sub-recipients
Main structural work and additional construction work
- Main Structural Work: Construction of earth fill dam, canals, overflow drainage buildings, Bottom outlet, waterworks, water pipelines, power plants, purchase and installation of electrical and mechanical systems, switchyard and 115 KV transmission lines.
- Additional work: Monitoring and consulting in construction, design, document inspection, material testing, construction drawing (Shop drawing), quality inspection and accuracy of work
Construction contractor
- Phongsubthavy Bridge-Road Construction Company Limited: Detailed design: Construction of earth fill dam, Bottom outlet, canals, Spillway and Intake.
- Construction control (Supervise construction) TUGBOAT TEAM COMPANY LIMITED.
- Construction of Penstock, Spillway and Bottom Outlet: T-RAX Steel Co., Ltd.
- Construction of 115 kw transmission line and Structural work of Switchyard: Tonnam Energy Ltd., Part.
- Construction of Powerhouse: R.L. Corporation Co., Ltd.
- Supply and installation of electrical and mechanical systems in Powerhouses. Supply and installation of electrical and mechanical systems in Switchyard: Dongfang Electric International Corporation
Important steps of the project
- The last version of FS was approved in June 2010.
- Received environmental certification on April 20, 2012.
- On April 26, 2013, Nam Ngiep 3A was signed a power purchase agreement with EDL.
- Signed a land lease agreement on 5 July 2013.
- The Nam Ngeip 3A Hydropower Project has a concession agreement with the Government of the Lao PDR on 28 November 2013.
- The construction of the Nam Ngiep 3A hydropower project began in September 2011.
- Testing the generate electricity in August 2014.
- Completed the construction in September 2014.
- After the Official Commercial operation of electricity, Phongsubthavy Bridge-Road Construction Co., Ltd. has been generating electricity for export to Electricite du Laos for 13 months.
- As of 7/8/2015, Phongsubthavy Bridge-Road Construction Company sold the dam to TK Group Co., Ltd.
- As of 15/03/2016, Chaleun sekong Power Co., Ltd. has become a 100% shareholder after TK Group Co., Ltd. And has been selling electricity until now.
- Concession age total 27 years after COD.
- Official Commercial of electricity COD on February 2015; (Unit 4,5 October 1, 2014)
