NEELUM JHELUM HYDROPOWER PROJECT
Organization

The Project is running through Neelum Jhelum Hydro-Power Company (NJHPC) WAPDA, headed by a Board of Directors (BOD). The Chairman of the BOD is Chairman Wapda. Members of the Board are Chairman Wapda, Member (Water) WAPDA, Member (Power) WAPDA Member (Finance) WAPDA, CEO (NJHPC), CFO of the Company and EX-CEO of NJHPP, Chief Secretary Azad Jammu & Kashmir, Additional Secretary Ministry of Water and Power, Additional Secretary Economic Affair Division, Additional/Special Secretary Ministry of Finance. MD/Chief Executive Officer, the representative of Board of Director, has his office at Islamabad whereas Project Director (General Manager) has his office at Muzaffarabad (AJ&K).

Location

Neelum Jhelum Hydroelectric Project is located in the vicinity Muzaffarabad (AJ&K). It envisages the diversion of Neelum river water through a tunnel out -falling into Jhelum river. The intake Neelum Jhelum is at Nauseri 41 Km East of Muzaffarabad. The Powerhouse will be constructed at Chatter Kalas, 22 Km South of Muzaffarabad. After passing through the turbines the water will be released into Jhelum River about 4 Km South of Chatter Kalas. Neelum Jhelum Hydroelectric Project has installed capacity of 969 MW. The Project will produce 5.15 Billion units of electricity annually.

A Composite Dam (Gravity + Rock fill) 160 m long and 60 m high will be constructed on Neelum River at Nausert. It is a Gated Diversion Dam. The dam will create a head pond of 10 million cubic meters which will allow a peaking reservoir of 3.8 million cubic meters to meet daily peaking of power for more than 4 hours. A six gate tunnel intake structure of 280 cumecs capacity will be connected with three conventional flushing surface basins installed at their end for taking sediment back into river.
 

SALIENT FEATURES
Overall Project Cost

Rs. 274.882 Billion (As per revised PC-I,2012) 

Installed Capacity 969 MW, Four Units @ 242.25 MW each
Dam  Type 

Composite Dam (Gravity + Rock fill)

Height / Length

60/160 Meters

Annual Energy           5.150 Billion electricity Units Annually
Average Head

420 Meters

Design Discharge

280 Cumecs

Tunneling

Twin Tunnel
Single Tunnel
Tailrace Tunnel

Length 19.54 km each

Length 8.94 km

Length 3.54 km
EIRR  

25.46 %

Date of Commencement 30-01-2008
Expected Completion date November 2016
Implementation Period 

About 9 years

The total length of head race tunnel is about 48 km. A 19.54 km stretch of the tunnel from the Nauseri site will be constructed as a twin tunnel system each with cross sectional exacavated area ranging from 52-58m2 . The remaining headrace tunnel down to the surge chamber will be a single tunnel having cross sectional area 100m2 approximately. The tunnel portion to be excavated with TBM will be shortcrete lined with a concrete invert while the drill and last portion of the tunnel will have full face concrete lining. The tunnel crosses under the Jhelum River at EI. 602.0, approximately 180m below Riverbed. The tunnel is accessed by 8 construction Adits for removal of excavated spoil.

The Surge Chamber consist of 341m high riser shaft and 820m long surge tunnel, four steel lined Penstock tunnels 118 m long and having 3.8 m internal diameter will also be constructed. The underground power Station will have four units with a total capacity of 969 MW. The Power Station will be connected with Gakhar Grid station through 500KV double circuit transmission line. 

The Neelum Jhelum Hydroelectric Project is split into the following three main geographic areas.
1. NAUSERI AREA (ALSO KNOWN AS C1)
A 60 m high Composite (Gravity + Rock fill) diversion dam and sedimentation basin near Nauseri is on the Neelum River. The dam has 3 no Radial gates and 2 flap gates designed to pass floods of 1000 year recurrence period and also allow the reservoir to be drawn down for sediment flushing. The sedimentation basins are designed to trap sediments that could erode the turbine blades at the powerhouse. The intake works are designed to divert up to 280m3/s into the headrace tunnels.
2. MAJHOI/THOTA (ALSO KNOWN AS C2)
The headrace tunnel is 48 km long including twin tunnel and conveys the water from the intake area at Nauseri to the Powerhouse area near Chatter Kalas. The tunnel crosses under high ground and also across the Muzaffarabad fault zone. A 19.54 Km stretch of the tunnel from the Nauseri be constructed as a twin tunnel system each with x-sectional area ranging from 52-58m2 and the rest of the route, a single tunnel of x-section area 100m2 approx, has been proposed. The tunnel portion to be excavated with TBM will be shortcrete lined with a concrete invert while the drill and blast portion of the tunnel will have full face concrete lining. The tunnel crosses under the Jhelum River at 602 msl, approximately 180m below Riverbed.

3. CHATTER KALAS AREA (ALSO KNOWN AS C3)
The headrace tunnel will feed four vertical-shafts Francis turbines with an installed capacity of 969 MW housed in an underground powerhouse. The water is discharged back into the Jhelum River near Zamainabad through a 3.5 km tailrace tunnel. Associated facilities include a transformer hall, surge shafts, access tunnels, a 500 kv switch yard and housing facilities for the operations and maintenance personnel.


PROJECT  IMPLEMENTATION

CONSTRUCTION

Construction Contract was awarded, on July 07, 2007 to M/s CGGC-CMEC consortium China for implementation of the project at a cost of Rs. 90.90 billions including Rs. 46.499 Billions foreign component.

Preparatory works including construction of Contractors Camps aggregate crushing & batching plant, site access roads and site/test laboratory have been completed.

Board of Director NJHPC has approved the deployment of Tunnel Boring Machines (TBM) for the Project on 23.11.2010. The contractor has arranged procurement of two TBMs from M/s Herrenknecht Germany. The deployment of TBM will certainly help to put the project on scheduled track and recover most part of delayed period envisaged for the commencement.

All the parts of TBM have been arrived at site and TBM assembly has substantially completed. The Soft Opening/Inauguration of TBM was held on August 06, 2012 and the Honorable Prime Minister of Pakistan graced the occasion by pressing the button.

Both the tunnel boring machines (TBMs) have been assembled and tested. The operation of first TBM started on 28-01-2013 and second TBM started on 01-04-2013.

Works required for Second Stage Diversion are ready.


CONSTRUCTION -ENGINEERING, DESIGN AND CONSTRUCTION SUPERVISION

Neelum Jhelum Consultants (NJC), a Joint Venture Comprising of five firms including MWH International Inc., USA, NORPLAN A.S., NORWAY, National Engineering Services Pakistan NESPAK (PVT.) Limited, Associated Consulting Engineers ACE (Pvt.) Limited, National Development Consultants of Pakistan, have been selected for Engineer Design and Supervision (EDS) as Project Consultants. Consultancy Agreement was signed on May 15, 2008. Letter of Commencement was issued on May 16, 2008. Services have been started since June 03, 2008.

THE MAIN PROGRESS OF THE PROJECT WORKS IS AS UNDER:
 

Contract Tunnels/Other Works Unit Total Works Completed Works  Up to February, 2013 Progress (%)
Lot C-1 Nauseri Access Tunnel (A1) m 385 385 100 %
Diversion Tunnel m 505 505 100 %
Headrace Tunnel (Single/Twin) m 7,367 5,184 73 %
Dam & Intake Concrete  m3 128,000 43,111 34 %
Desander Excavation  m3 3,379,373 2,915,834 86 %
U/S Coffer Dam (RCC + Hard fill) m3 26,434 26,434 100 %
Lot C-2 Majhoi Headrace Tunnel (Single/Twin) m 37,673 8,747 23 %
Access Tunnels (A2,A3,A4) & Junctions m 8,676 7,028 81 %
Lot C-3 Chattar Kalas Headrace Tunnel (Single) m 3,622 2,753 76 %
Tailrace Tunnel m 3,540 1,840 52 %
Access Tunnels (A5,A6,A7) & Others m 5,479 5,143 94 %
Power House (Excavation) m3 148,463 100,530 68 %
 Penstock (4 Nos.) m 472 472 100 %
Draft Tube tunnels (4 Nos.73m each) m 292 292 100 %
Bus  Bar (4 Nos. 40m each) m 160 160 100 %
Crane Beam U/S & D/S m 137 137 100 %
Transformer Hall (Excavation) m3 51,372 47,856 93 %
Total Headrace Tunnel (C1+C2+C3) m 48,654 17,107 35.2 %

 

Overall Physical Progress is 48% (This is progress of total tunnel excavation which is a critical activity for project completion) up to the End of March, 2013.
FINANCING

GOP has approved financial arrangement for the project.

a.
Established Neelum Jhelum Hydropower Company for Project Implementation.

b
. Imposition of surcharge @ 10 Paisa per unit on power tariff for providing 50% local Component (LC)
    equity of project estimated cost at the acceptance of tender.

c. Balance equity to be arranged through loans, skuk bonds etc. About 600 million US$ financing has been
   arranged in collaboration with Economic Affair Division (EAD) FROM THE Middle East Donors, Negotiations
   for foreign component are also in progress with People Republic of Chine.

d. Revised PSDP (2012-13) allocation or Self financing through NJS levy by GoP is Rs. 26,808 Million.

 

 

     Overall Financial Progress is 23.18 %  Up to the end of March, 2013.

   PROJECT BENEFITS

    - Reduction of dependence on thermal power generation through reducing the import of fossil fuel thereby
      saving in foreign exchange.

    - Employment opportunities during construction and later on operation of the Project.
    - Improved standard of living.

    -
Social-economic uplift of the area.

Updated as on 31-03-2013

Photographs showing advancement in the Project are placed at below.

 

Shotcrete Batching Plant Near Adit A1

Excavation work started at desander area

Inlet of Diversion Tunnel

Form Work Fixing for Second Lift Concrete Pour For Segment No.01  at Switchyard RCC Retaining Wall

A7 Tailrace Tunnel (01)Station 0+026 Face heading and left wall btw stations and 0+016 to 0+021 and benching after mucking

A8-Access to Surge Shaft (01) Station 0+042 Face drilling of rock bolts

                Construction of Left Abutment for Replacement Bridge across River Jhelum is in Progress

A8‐ Access to Surge Shaft (02) Station 0+000 Inlet view of access to Surge Shaft

Area occupied by CGGC Staff residences, Parking Area Generator Shed etc at Adit A4

Development of land for crushing and batching plant