Salient Features

General
 

Source River

:

Daram Khola

 

VDC

:

Galkot Municipality (Baglung); Musikot Municicpality (Gulmi)

 

District

:

Baglung

 

Zone

:

Dhawalagiri (Baglung), Lumbini (Gulmi)

 

Development Region

:

Western

 

Location of the Project (to be amended after 9.6 MW license)

 

28° 11′ 00″  to  28° 12′ 30″ N

83° 19′ 00″  to  83° 21′ 43″ E

Power Development

 

Type of Power Generation

:

Run-of-the-river

 

Turbine Discharge

:

2 Nos. x 5.15 m3/sec

 

Total Gross Head

:

127 m

 

Rated Net Head

:

111.2 m

 

Installed Capacity

:

9.6 MW

Average Annual Energy
 

Total Energy

:

53.44 GWh

 

Dry Energy(4 month)

:

9.22 GWh(17.26%)

 

Wet Energy(8 month)

:

44.21 GWh(82.74%)

Hydrology and Meteorology

 

Catchment Area at Intake

:

247 km2

 

Area > 3’000 m

:

7 km2

 

Area < 3’000 m

:

240 km2

 

Average Annual Precipitation

:

2,255 mm

 

Design 100-yrs Flood at Intake

:

740 m3/sec

 

Downstream Release

:

263 lps

 

Long-term Average Flow

:

16.61 m3/sec

 

40 Percentile flow (Q40%)

:

10.30 m3/sec

Weir and Undersluice

 

Type of Weir

:

Free flow concrete gravity weir

 

Crest Length of Weir

:

24 m

 

Crest Level of Weir

:

938.50 amsl

 

Top Width of Weir

:

2 m

 

Crest Length of Undersluice

:

4 m

 

Floor elevation of Undersluice

:

934 amsl

 

Nos. of gates in Undersluice

:

2 No.

Intake

 

Type

:

Orifice

 

No. of Opening

:

3

 

Crest Level

:

936.0 amsl

 

Width x High

:

3.0 m x 2.0 m (each)

Gravel Trap

 

Length

:

4.5

 

Size (B x D)

:

7.0 m  x 3.8 m

 

Gravel Flushing Channel

:

1.0 m x 1.0 m

Approach Canal

 

Type

:

RCC Rectangular

 

Length

:

16.5 m

 

Size (B x D)

:

1.75 m x 1.75 m

Settling Basin

 

Type

:

Conventional with intermittent flushing

 

Size of Each Chamber (L x B x H)

:

50.0 m x  7.5 m x 7.5 m

 

Particle Size to be Removed

:

≥ 0.2 mm

 

No. of Flushing Channel

:

2

 

Size of Flushing Pipe (diameter)

:

1 m

 

Water Level in Head Pond

:

938.0 amsl

Headrace Pipe/Penstock pipe

 

Type

:

Pressurized MS Circular

 

Size

:

2.2 m, 2.0 m &1.8 m

 

Length

:

4226m

 

Thickness

:

10 mm to 18 mm

Surge Tank

 

Type and Material

:

Non Restricted RCC Circular tank and steel pipe

 

Normal Water Operating Level

:

930.5 amsl

 

Internal Diameter

:

8 m for Concrete tank and 2.2m dia for steel pipe

 

Height from its Base

:

12.5 m for concrete tank

 

Upsurge Level

:

950.2 amsl

 

Down Surge Level

:

891.3 amsl

Powerhouse

 

Type

:

Surface

 

Size (L x B x H)

:

28 m x 16 m x 16 m

 

Number of Units

:

2

Type of Turbine

 

Rated Capacity

:

2 x 4.8 MW

 

Tail Water Level

:

811.5 amsl

 

Rated Speed

:

600 rpm

Tailrace Canal

 

Type

:

RCC Rectangular

 

Size (B x D)

:

2.9 m x 2.2 m

 

Length

:

41.30 m

 

Tailrace Outlet

:

Daram Khola

Generator

 

Type

:

Brushless, synchronous, 3 phase

 

Specification

:

5750 kVA, 6.6 kV, 50 Hz x 2 Nos.

Transmission Line
 

Specification

:

33 KV single circuit line to Harichaur Sub-station(Connection is going in loop in loop out near to powerhouse)

 

Length

:

14 km

Financial Indicators
    
 

Project Cost (Including IDC)

:

2150 million NRs.

 

Financial Cost  per MW

:

223.95 million NRs.

 

Construction Period (years)

:

36 months

 

Interest Rate

:

11%

 

IRR

:

12.33%

 

NPV

:

436.83 million NRs.

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