REHABILITATION OF JABBAN HYDROELECTRIC POWER STATION
Location The project area is located in the District of Malakand, NWFP of  Pakistan at a distance of 45 km form the city of Mardan.
Description

Jabban Hydroelectric Power Station is located in District Malakand, KPK Province of Pakistan, at a distance of 45 km from the city of Mardan and 7 km upstream of 20 MW Dargai Hydroelectric Power Station. Jabban Hydroelectric Power Station receives water from Upper Swat Canal System through Benton and barkit tunnels. The discharge capacity of Barkit tunnel is 34 m3/sec which is feeding Jabban and Dargai Hydropower Projects.

Since its commissioning in 1937 with an initial installed capacity of 9.6 MW (3.2 MW each), and addition of 10 MW (2 units of 5.0 MW  each), Jabban Hydroelectric Power Station generated billions of units of cheap electricity. The 70 year ld power house was badly damaged due to a fire incident on 12-11-2006. The extent of damage was such that it was not possible to restore operation of the existing units. Moreover, the plant equipment had already ouitilived its life. The situation necessitated to carry out Rehabilitation of Jabban Hydroelectric Power Station on "Fast Track Basis" by installation of new machines of higher efficiency at the same site.

Project Objectives

 i) To rehabilitate the existing Jabban Hydroelectric Power Station to maintain the utilization of   cheap hydropower potential at Jabban and to provide more reliable and consistent power to the National Grid for at least another 50 years.
 ii)  To enhance the capacity of Power Station from 19.6 MW to 22.0 MW by using more efficient turbines and other electro-mechanical equipment.

Salient Technical Features (After Rehabilitation)
Installed Capacity 22 MW (4 Units of 5.5 MW each)
Annual Net Electrical Output 122 GWh
Design Discharge 34 m3 /sec (8.5 m3 / sec per unit)
Rated Net Head 76.8 m
Generation Voltage 11 KV
Transmission Voltage 132 KV
Salient Financial Features
Project Cost as per revised PC-I Total      Rs.3753.571 million
Foreign   Rs. 1649.480 million
Local      Rs. 2104.091 million
Generation cost per unit Rs. 3.25
Cost per KW of installed capacity Rs. 169, 745 (US$ 1997 / KW)
Benefit Cost Ratio 1: 2.14
Project Features
Consultant M/s NESPAK
Contractor JV of Habib Rafique Ltd. (Pakistan) & Central China Power Group (CCPG) China
Sub Contractor
  - Powerhouse M/s Zhejiang Jinlun Electro-mechanic Co. Ltd. Chine.
  -  Sub Station M/s Areva T&D Pakistan (Pvt. ) Ltd.
Financing AFD (France) -  Euro 25.0 Million
Contract value Foreign:  US$ 17.904,901
Local:      Rs. 786.767 Million
Date of Commencement 19-02-2010
Completion period 21 months from Order to Commence.
Commercial Operation Date (Final) As per Contractual Plan
As Expected 		18-11-2011
31-12-2012
Financial Progress (upto Dec.2010) 18.64%
Work Progress (December-2010) Power House Area
i)   Power House Foundation, Excavation and Architectural Drawings approved.
ii)  Approval for Design of main Electrical & Mechanical Equipment i.e. Turbines, Generators,  Inlet Valves Excitation System, Governors, Protection Relays, Cranes etc. is in process between the Consultant and Contractor.
iii)  Fitting of form work for further concreting of right and left side walls is in progress for unit No. 1, Dismantling of formwork from the concreted portion of draft tube walls for fitting at other location is in progress for unit No. 2 Chipping of top of concreted walls of draft tube pit to bond with 2nd stage concrete is in progress for unit No. 3 and formwork for 1st stage concreting of Generator floor is in progress for unit No. 4.

Penstock
i)  Dismantling of old Penstocks and Pedestals has been completed.
ii) Sub-contractor for Supply, Installation & Commissioning of penstocks approved..
iii) Sizing, thickness and material approved by the Consultants material being imported.
iv) Detail Design/Drawings etc.  are in approval stage.

Forebay
i) Removing of old concrete in the forebay area is in progress after which new concrete of 450 mm will be placed.

132 KV Sub Station
i)   Sub station equipment layout, excavation and foundation drawings approved.
ii)  RCC foundation of Breakers and Isolators are complete.
iii) Backfilling is in progress.
iv) Shipment of equipment is awaited. 

Updated as on 31.08.2011