Salient Features of the Project

Sl. No. Component Unit Particulars
1 Catchment area till Dam km2 373
2 Average annual flow volume Mcum 515
3 River diversion flood m3/s 80
4 Design flood m3/s 2,400
5 MWL/FRL masl 2,292.00
6 River bed at Dam axis masl 2,262.00
7 Gross reservoir storage MCM 0.537
8 Live reservoir storage MCM 0.307
9 Submergence area by reservoir km2 0.046
10 Length of Dam at top m 104
11 Max height of Dam from deepest foundation m 42
12 No. of Desilting Chambers Nos 2
13 Length of Head Race Tunnel m 11,998.50
14 Finished diameter of HRT  m 4.1
15 Design discharge m3/s 25.45
16 Number of construction Adits Nos 16
17 Cumulative length of Adits m 5,481.60
18 Diameter of Surge Shaft m 10.5
19 Height of Surge Shaft m 59
20 Length of inclined Pressure Shaft m 1,073
21 Installed capacity (2 x 59 MW) MW 118
22 Gross Head (max) m 536.25
23 Gross Head (min) m 528.05
24 Weighted average/design Head m 527.5
25 Rated Head m 516.4
26 Design Energy in 90% Dependable Year GWh 491.52
27 Energy in 50% Dependable Year GWh 540.73
28 Average Plant Load Factor % 48.81
29 Additional energy generation from MHEP in 90% Dependable Year GWh 323.77
30 Size of Power House mxmxm 66.6x19.0x36.8
31 Size of Transformer Cavern mxmxm 61.0x14.0x27.1
32 Length of Main Access Tunnel m 509
33 Size of D shaped MAT m 7
34 Length of 5 m D shaped Cable cum Ventilation Tunnel m 615.66
35 Length of 6 m x 4.25 m Modified D shaped Tail Race Tunnel m 489.16
36 Bays of indoor GIS switchyard Nos 5
37 Length of 132 kV double circuit transmission line km 18.6
38 Estimated project cost with escalation, IDC and FC mill Nu. 11,964.59
39 Construction period including 6 months mobilization period months 48