Associated Technologies (Pvt.) Ltd An Infrastructure Development & Manufacturing Company

Associated Technologies (Pvt.) Ltd

An Infrastructure Development & Manufacturing Company

The Karot Hydropower Project

September 2009

Presentation Overview

Introduction to Associated Technologies (Pvt.) ltd.

Project LocationLocation MapsProject HistoryProject Plan and PhotographsSalient Features of ProjectEnvironmental and Social ImpactsConclusion

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Associated Technologies (Pvt) Ltd

Associated Technologies

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Established in October, 1987ISO 9001:2000 CertifiedStaff Strength 450.Field of Activities

General Construction Roads Industrial Structures Telecommunication Energy Sector (Hydropower, Wind Power, Solar Power) Large scale manufacturing of galvanized steel structures

for telecom and power sectors

Karot HPP – Project Location


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Project Located on –Islamabad-Kahuta- Kotali Road, 74 Km upstream of Mangla Dam

Distance from Islamabad to Karot is app.60km.

Islamabad Kahuta RoadIslamabad Kahuta Road


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Karot HPP – Project layout

Islamabad Kahuta RoadIslamabad Kahuta Road


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Kahuta Karot RoadKahuta Karot Road


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Karot HPP – Project History


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Project Site first time Identified in 1984 by WAPDA and Monenco

In 1994 in a report by WAPDA and GTZ Germany again recommended this site with better parameters

In 2007 PPIB issued LOI to Associated Technologies for Karot HPP through a international competitive bidding.

MONENCO MONENCO GTZGTZ


Project Location 33o 36’N 73o 36’ E

Normal Res. Level 433m Tail Water Level 381m Rated Discharge 215

m3/s Gross Head 52m Net Head 51m Rated Capacity 93MW Mean Annual Energy 727GWh Plant Factor 89.2% Dam Height 70m Diversion Tunnel 2 No. 16m

dia and 850m

length Bottom Outlet 10 N0. 14m

x 12m

Project Location 330 36’N 730 36’ E

Normal Res. Level 433m

Tail Water level 381m Rated Discharge 550 m3/s Gross Head 52m Net Head 51m Rated Capacity 240 MW Mean Annual Energy 1613

GWh Plant Factor 76.7% Dam Height 70m Diversion Tunnel 2 No.

16m dia. and850m length

Bottom Outlet 10 N0. 14m x 12m

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Karot HPP – Features of GTZ and MONENCO Studies

Selected Project LayoutSelected Project Layout


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Karot HPP – Project Layout

Longitudinal Section of Selected LayoutLongitudinal Section of Selected Layout


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Karot HPP – Longitudinal Section

Longitudinal Section of Tail Race TunnelLongitudinal Section of Tail Race Tunnel

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Karot HPP – Longitudinal Tail Race

Frontal View of DamFrontal View of Dam

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Karot HPP – Concrete Dam

Dam , Intake an Power HouseDam , Intake an Power House

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Karot HPP – Location of Major Structures

Dam , Intake an Power HouseDam , Intake an Power House


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Dam AxisDam Axis


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Power House & Tail RacePower House & Tail Race


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Summary of the Geotechnical Investigation Neotectonic WorksSummary of the Geotechnical Investigation Neotectonic Works


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Karot HPP – Geotechnical Investigation

Total Number of B/H 17

Total Drilling Conducted 1840 m

Seismic Refraction Survey 2000 m

Water Pressure Tests 239 nos.

Geological Mapping 2 Km2

Piezometers are installed and our

site supervisor is recording the water

levels regularly Three of four faults Belonging to

Himaliya Arc are at distance of 60Km and only one is at distance of 26Km. Which is also not dangerous.

Rock Type Sandstone ,Silt Stone

Shear Parameters Sand Stone C = 16MPa

φ = 30o

Unconfined Compressive Strength Sandstone 13MPa Silt and Clays Stone 15MPa

Tensile Strength Sand stone

6MPa Silt and Clay Stone 5MPa

Uniaxial Strength Sand Stone

15MPa Silt and Clay Stone 16MPa

Geotechnical AssessmentGeotechnical Assessment

Salient Features of Civil Structures


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Dam Axis 1.75Km upstream of Karot Bridge

Dam Height 91 mRated Discharge 1200 m3/sGross Head 79mRated Capacity 720MWMean Annual Energy 3436 GWhPlant Factor 54.5 %Dam Height 90mNo. and Type of Turbine 4 No. Francis TurbinesProject Capital Cost 1470 Mill. US$

Salient Features of Civil Structures


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Spillway Gates 8 Nos. Type of Spillway gates Radial Size 7x15 m

Low Level Sluicing Gates 6 Nos. Type of Gates Radial Size 6.2 x11

Diversion Tunnel 2 Nos. Tunnel Dia. 10m Tunnel Length 450m

Head Race Tunnels 4 Nos. Tunnel Dia. 10m Tunnel Length 160m

Salient Features of Power House


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Power House Type of Power House Cavern/Underground Switch Yard Outdoor

Turbines No. of Turbines 4 Type Francis Capacity 183 MW

Electrical Works Transmission Line Capacity 500Kv Generator 4 Nos. Turbo Units Generator Capacity 180Mw/200MVA Generator Voltage 18KV

Economic AnalysisEconomic Analysis Financial AnalysisFinancial Analysis


Reference Date Jan 09

Discount Rate 12%

Return on Equity 20 %Financial IRR 12.59%Levelized Tariff

70.013 $/MWhPayback 5 years

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Economic & Financial Analysis

Economic AnalysisEconomic Analysis Financial AnalysisFinancial Analysis


Benefit Cost Ratio 1.99

Net Present ValueUS$

1029 .78 MillionEconomic IRR

21.83 %

Return on Equity 20 %Financial IRR 12.59%Levelized Tariff

70.013 $/MWhPayback 5 years

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Economic & Financial Analysis

Environmental & Social Impact

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Minor environmental impacts only during construction period i-e; air pollution due to heavy construction traffic, blasting

No significant social impacts besides relocation of some houses, 7 km road in reservoir area, some shops and roads, side restaurants, WAPDA grid station and Azad Pattan Bridge

Above mentioned impacts are too small therefore making project more feasible and attractive

Azad Pattan BridgeAzad Pattan Bridge Shops & RestaurantsShops & Restaurants


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Structures Effected by Karot HPP

Azad Pattan BridgeAzad Pattan Bridge


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Grid StationGrid Station RoadsRoads


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Road RelocationRoad Relocation


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Conclusion


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No logistical problems due to easy project approachProject location is close to the national grid system

and load center ,hence there will be no problem in power dispersal

Project completion time is approximately 4.5 years.No significant environmental and social impact.Run

of the river project. Facts and figures brought out in this presentation

lead to ascertain that Karot HPP is an economical and ESI free proposition compared to other such projects in the private and public sectors of Pakistan

Associated Technologies (Pvt.) Ltd An Infrastructure Development & Manufacturing Company

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