
Introduce about
Nam Ngiep 3A
Nasy Village, Khoun District, Xiengkhuang Province
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$102 M
Project Cost
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44 MW
Installed Capacity
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144 GWh
Average Annual Energy
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30 M
Dam Height
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144 GWh
Reservoir Surface Area
GENERAL
INFORMATION
Project Cost | $102 M |
Shareholder | CSE 100% |
Installed Capacity | 44 MW |
Average Annual Energy | 144 GWh |
Design | 36.70 m3/s |
Rated Head | 153 m |
Turbine Type |
– Vertical Francis 3 Units
– Horizontal Francis 2 Units |
Offtaker | EDL |
Catchment Area | 336 Km2 |
Mean Annual precipitation | 14m3/s |
Mean Annual runoff | 2400 mm |
Reservoir Storage volume | 13.85 Million m3 |
Maximum Reservoir Surface Area | 1.8 Km2 |
Full Supply Level | 1,050 m a.s.l |
Minimum Operating Level | 1,048 m a.s.l |
315 |
TECHNICAL
STRUCTURE
Main Dam | |
Type | Earth till Dam |
Height | 30 m |
Crest Length | 110 m |
Headrace Channel | |
Type | Open Channel & Box culvert |
operation Chanel | 1,100 m |
Longitudinal Gradient | 500 m |
Penstock | |
Type | Steel pipe |
Number of cell | 1 |
Diameter | 3.00 m |
Length | 450 |
Longitudinal Gradient | – |
Spillway | |
Type | Steel Sluice Gate |
Number of Gate | 2 |
Maximum Discharge | 450 m3/s |
Headrace Tunnel(none) | |
Type | – |
Design Discharge | – |
Diameter | – |
Length | – |
Tailrace Channel (none) | |
Type | – |
Length | – |
Switchyard 115kV | |
Elevation | 904.60 m a.s.l |
Dimension | 45m x 54m |
Hydro-Electro-Mechanical
Information
Powerhouse | |
Installed Capacity | 44 MW |
Number of Units | 5 |
Turbine Type | Vertical Francis 3 & horizontal Francis 2 |
Max Discharge | 34 m3/s |
Erection Floor Elevation | 901.60 m a.s.l |
115KV Transmission Line | |
Substation | NAHO |
Length | 3 Km |
Number of circuit | 1 |
Conductor Size | 240 mm2 |