Pre Investment Study on Irrigation Canals and Dams of India

Country: India State: Karnataka Capacity: 
Click to Go Back to Main Page Client: Joint UNDP/ESMAP Energy:

The Karnataka Power Corporation (KPCL) had originally completed investigations and pre-feasibility studies on mini- hydro prospects associated with irrigation dams at Brindavan, Kabini, Nugu, and Harangi in the Cauvery river basin, and Mudhol, Malaprabha, and Devrebelerkere in the Krishna river basin. Investigations had also been done for over ten canal drop prospects along: (i) the Left Bank Canal on the Tungabhadra scheme which draws water from a major tributary of the Krishna river; (ii) the Visveswaraiah Canal which draws water from the KRS reservoir (i.e., the Brindavan Dam) on the Cauvery river; and (iii) the Shahpur Branch Canal which distributes water from the Narayanapur Reservoir on the Upper Krishna scheme. Altogether, the KPC collaborated with ESMAP to review proposals on seven dam based prospects, one prospect at the Attehala diversion weir, and five canal drop prospects, including a cluster comprising six drops on the Shahpur BC (Map - IBRD 22784). The prospects covered in this study have a total annual power generation potential of the order of 140 GWh. This estimate excludes the potential yield of the Tungabhadra LB Canal which already is under development by the KPC. 

Modifications in planning and layout were recommended for each of the schemes. As an example the case of Maddur illustrates preliminary design procedure of Canal based scheme and use of closed conduit for byepass,  Brindavan illustrates the use of existing sluices at dams and Kilara  the elimination of by pass channel.

MAP OF KARNATAKA WITH PROJECTS

PROJECT
(m3/s)

(m)
P
 (kW)
E
 (GWh)
Cost
 (MUSD)
Cost/kW
(USD)
EIRR
 (%)

IRRIGATION DAM BASED SCHEMES

Brindavan 30 13 3 x 3500 62.0 3.743 357 65.7
Deverebelekere 12 13 1 x 1000 9.07 1.028 1028 42.1
Harangi 12 15 3 x 1500 14.52 1.732 385 30.8
Kabini 12 10 3 x 650 6.25 1.397 1074 17.5
Malaprabha 12 10 2 x 1000 8.08 1.139 569 26.3
Mudhol 7.5 13 1 x 1000 4.86 0.637 637 34.5
Nugu 12 13 2 x 1000 6.15 1.167 1167 19.1
TOTAL     20,800 110.9 10.84 521  

CANAL DROP BASED SCHEMES

Anveri 7.5 15 2 x 650 5.26 0.932 717 29.3
Attehala 7.5 7 1 x 350 2.80 0.542 548 12.2
Kilara 12 10 2 x 650 5.80 0.156 120 13.9
Maddur 7.5 13 2 x 1000 8.30 1.234 617 29.1
Rajankollur 7.5 15 3 x 650 6.33 1.341 1031 20.3
Shahpur BC 1 7.5 7 3 x 350 5.10 1.279 1827 13.3
Shahpur BC 2 7.5 7 3 x 350 3.90 1.374 1308 13.3
Shahpur BC 3 7.5 7 3 x 350 3.65 1.391 1324 13.3
Shahpur BC 4 7.5 7 3 x 350 4.15 1.145 1090 13.3
Shahpur BC 5 7.5 10 2 x 650 4.88 1.067 821 13.3
Shahpur BC 6 7.5 7 1 x 350 2.00 0.592 1691 13.3
      12,750 52.17 11.053 867  

DEVEREBELEKERE

RAJANKOLLUR DROP

MUDHOL DROP CHUTE

MALAPRABHA CANAL

SHAHPUR CANAL

KILARA DROP

MADDUR DROP

LIST OF PROJECTS HANDLED BY SECSD

MADDUR RAPIDS

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