HUAY LA NGAE

PROJECT COST

$147 M

AVERAGE ANNUAL ENERGY

289.69 GWh

DAM HEIGHT

1,218 M

CATCHMENT AREA

279.8 Km2

Installed Capacity

60 MW

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In Progress

Project Cost $147 M
Shareholder CSE 30%
Installed Capacity 60 MW
Energy Generation 289.69 Gwh
Maximum Turbine 12 m³/s
Design net Head 1,215.18 m
Type of turbine Vertical Francis x 5 Units
Off-taker EVN
Catchment Area 279.8 km²
Rain flow releases 2,800 mm
Inflow Average 123×106 m3/s
Reservoir 14 M m³
Reservoir Surface Area 93.6 km²
Full supply level 1,215 m a.s.l
Min operating level 1,189 m a.s.l
Main Dam
Type Plain Cement Concrete
Height 58 m
Crest Length 178.86 m
Crest level 782.5 m a.s.l
Water flow channels
Type Inverted U-shaped section
Length 3,990 m
Hills of channels  
Open Channels 2.5 m
convert block 2.5 m

Penstock

Type Steel Lined Tunnel
No of pipe 1
Internal diameter 2 m
Length 2,787.7 m
 
Spillway
Type WES practical weir
No of gate 3
Design Flood Discharge 701 m³/s
Headrace Tunnel
Type Inverted U-shaped section
Flow rate 3.91 %
Internal diameter 2.8m x 3.5m
Length 3,918 m

Station 230 kW GIS (EGAT) / 115 kW

AIS (Electricite du Laos)

Height 586
Ground size 54m x 25m
Powerhouse
Type  
Installed Capacity 60 ເມກາວັດ
Number of Unit
2
Turbine Type
SF30-10/3300
Max Powerhouse Discharge
5.744 ມ³/ວິນາທີ
Height 581.7 M A.S.L
 230 KV Transmission Line EDL
Substation Nam E-moun
Length 41 ກມ
Circuit Type 1
Conductor Size ACSR 300

Legal Documents

  1. On 21/07/2015 Signed a Memorandum of Understanding (MOU)   
  2. On 17/02/2015Project Development Agreement (PDA) was signed
  3. On 14/09/2017The Feasibility study of the project was approved
  4. On 22/11/2016 Completed the report of Environmental and Social Impact Assessment (ESIA)
  5. On 22/11/2016Completed the Environmental and Social Management and Monitoring Plans (ESMMP)
  6. on 01/02/2021 Completed the Environmental and Social Management and Monitoring Plans-construction Phase (ESMMP-CP)
  7. 0n 14/08/2020 Complete basic design certification issued
  8. On 07/09/2020Completed the investment license
  9. On 30/09/2020Completed the enterprise registration
  10. On 11/11/2020Completed the ratification of the annex to the concession agreement with environmental, social and natural obligations (Annex C-CA)

. on 15/01/2019Completion of Environmental Certificate for Renewal of Social and Natural Environmental Management and Monitoring Plan (ESMMP)

  1. on 24/11/2021 Completed the environmental minimum water flow certificate
  2. on 07/05/2021 Completed the environmental certificate for the transmission corridor
  3. on 22/12/2021 Signed a concession agreement with the Government of the Lao PDR

 

  • EPC contractor    POWERCHINA Sinohydro Bureau 10., Ltd

  • In Progress

Important step of the project:

  1. On 21/07/2015Signed a Memorandum of Understanding (MOU)
  2. On 17/02/2017 Project Development Agreement (PDA) was signed
  3. On 22/12/2021 Signed a concession agreement with the Government of the Lao PDR

Project progress

Construction start phase

  • Model and Powerhouse

  • Survey the area

  • Paving the road

  • Building the tunnel

10%

Construction start phase

  • Model and Powerhouse

  • Survey the area

  • Paving the road

  • Building the tunnel

39.72%

Contact Us

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

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