executive summary - patan (revised on 10.05.2010)

8/3/2019 Executive Summary - Patan (Revised on 10.05.2010)

1/5

PAKISTANWATER AND POWER DEVELOPMENT AUTHORITY

PATAN HYDROPOWER PROJECT

2800 MW

FEBRURY, 2011

HYDRO PLANNING ORGANIZATION

WAPDA, SUNNY VIEW, LAHORE

P-1

A L L A I K H W A R1 2 1 M W

T H A K O TR E S E R V O I R

T H A K O TB R ID G E

KHANKHWAR

72MW

T H A K O T D A M A X I S

Karakuram

600

H i g h W

a y

THAKOT

2800 MW

760

800

600800

610

Khan

Khwar

800

P O W E R H O U S E

INDUSRIV

ER

N

LEGEND

R I V E R

N U L L A

R E S E R V O I R

T O W N

D A M A X I S

P O W E R H O U S EP A T A N H P P

T H A K O T H P P

W . L. 760 m . a. s. l

W . L . 610 m . a. s. l

RESERVOIR

W. L. 1450 m.a.s.l

TAIL RACE

W . L . 6 9 3 m .a .s . l

RESERVOIR

W . L . 7 6 0 m .a .s . l

TAIL RACE

W . L . 6 1 0 m .a .s . l

RESERVOIR

W . L . 6 1 0 m .a .s . l

TAIL RACE

W . L . 4 7 2 m .a .s . l

TAIL RACE

W . L . 5 7 0 m .a .s . l

RESERVOIR

W . L . 8 2 5 m .a .s . l

RESERVOIR

W . L . 1 2 1 8 m .a .s . l

TAIL RACE

W . L . 6 7 7 m .a .s . l

RESERVOIR

W. L. 1422.5 m.a.s.l

TAIL RACE

W. L. 686 m.a.s.l

TAIL RACE

W. L. 552 m.a.s.l

1000

1000

1200

1200

1000

1200

1000

1200

1000

1200

1000

12001000

Highway

Karak

uram

DuberKhw

ar

KeyalK

hwar

Ranolia

Khwa

r

Darton

Khwar

1200

KEYAL

122MW

P A T A N T O W N

KarakuramHighway

PALASV

ALLEY

800

Bankhar

Khw

ar

D U B E R B A Z A R

1000

1200

P A T A N D A M A X I S

DUBER

130MW

800

800

PALASVALLEY

621 MW

INDUSRIVER

800

800

800

800

PATAN2800MW

INDUSRIVER

P A T A N A N D T H A K O T H Y D R O P O W E R P R O

C O N C E P T U A L L A Y O U T

P A T A N H P PR E S E R V O I R

1000

1000

1000

1000

1 2 0 0

KhanKhw

ar

Ming

oraRo

ad

R o a d To B a t g r a mA n d M a n s e h r a

1000

600

800

1000

1000

1000

1000

600

600

600

800

600

800

1200

12

00

12001000

1200

1000

1200

1200

800

600

1200

600

600

800

600

800

800

1000

800

1000

1000

1200

800

1000

12

00

100080

0

1200

INDUSRIVER

AnalK

hwar

B E S H A M


2/5

PATAN HYDROPOWER PROJECT

1.0 General

The Pakistan Water and Power Development Authority (WAPDA) launched a 25

years comprehensive integrated programme in 2001 Water Resources and

Hydropower Development Vision 2025. Programme which aims at the

development of water storage projects as well as harnessing the hydropower

potential in the country. Thakot Hydropower Project, being a run off river

hydropower project, is also included in that programme.

2.0 Location

Patan Hydropower Project is located on Indus River in District Kohistan of NWFP.

The dam site is located on Indus River about 4 Km upstream of village Patan onKarakorum Highway (KKH). The proposed underground powerhouse site is

located on the left bank about 8 km upstream of Besham Town and is accessible

via KKH. Powerhouse and dam sites are 349 km and 383 km respectively from

Islamabad.

3.0 Background

WAPDA in 1975 requested the assistance of Canadian Government through

CIDA in making ranking study of hydroelectric power sites with a view to meet the

long-term power demand of Pakistan. Accordingly CIDA provided a grant to

assist WAPDA in cost effective hydropower sites and to focus on the best-ranked

project for development / implementation.

CIDA appointed Montreal Engineering Company Limited (MONENCO) to

undertake hydroelectric inventory ranking and feasibility studies in Pakistan. The

contract between CIDA and Consultant (MECO) was signed on August 5, 1981.

Patan Hydropower Project was identified as part of Inventory and Ranking Study

of Hydropower potential on main rivers of Pakistan, carried out in

1981-84. For main-stem Indus River Projects, Patan Project was ranked fifth after

Basha, Dasu, Bunji and Thakot hydropower projects.

Monenco studies revealed at identification level that Patan Hydropower Project

would utilize the steep river gradient available on Indus river. The concept of

development was to construct a 104 m high dam on Indus river. The project

P-2


3/5

would provide some 1172 MW (Index Capacity) in an underground powerhouse

with gross head of 150 m and design discharge of 1070 m3/s.

The Index capacity at Identification study by Monenco was reviewed and revised

as 2800 MW with design discharge of 2600 m3/s and mean annual energy of

15,230 GWh by Hydro Planning Organization with updated flow data and design

discharge.

4.0 Salient Features (Review of MONENCO Study by HPO, WAPDA)

- Design Capacity : 2800 MW

- Design Discharge : 2600 m3/s.

- Plant Factor : 62.2 %

- Full supply level : 760 m.a.s.l

- Normal Tailwater Level at damsite : 680 m.a.s.l

- Normal Powerhouse Tailrace Level : 610 m.a.s.l

- Gross Head : 150 m

- Net Head : 129 m

- Mean Annual Energy : 15230 GWh

- Mean Annual Flow : 2180 m3/s.

- Dam height : 104 m

- Length of Power Tunnel : 18 Km

- Tentative Project Cost ; 6.0 Billion US $

Scope fpr Feasibility Study

The study will cover data collection, field investigations, technical analysis to select

the appropriate project lay out to develop the hydro power potential required to fully

establish the feasibility of the selected project layout, design of structure and

equipments, cost estimates, economic and financial analysis for the Patan

Hydropower project.

The works for a feasibility study are indicated below :

Field surveys and investigations

Collecting of all relevant data

Finalization of project layout after considering different alternatives.

Design of Structures and equipments,

P-3


4/5


5/5

7.0 Present Status

CDWP has approved PC-II for an amount of Rs.731.233 Million in a

meeting held on 17.09.2009.

MoW&P has accorded administrative approval to undertake the work vide

No. P.II.15(17)/2009 dated 27.10.2009.

Feasibility study will be completed in twenty four months after engagement

of Consultants.

P-5

executive summary - patan (revised on 10.05.2010)

Documents