Associated Technologies Pvt' Ltd An Infrastructure Development

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Associated Technologies (Pvt.) LtdAn
Infrastructure Development Manufacturing Company
The Karot Hydropower Project September 2009
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Presentation Overview

• Introduction to Associated Technologies (Pvt.)
  ltd.
• Project Location
• Location Maps
• Project History
• Project Plan and Photographs
• Salient Features of Project
• Environmental and Social Impacts
• Conclusion

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Associated Technologies

• Established in October, 1987
• ISO 90012000 Certified
• Staff 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

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Karot HPP Project Location

• Project Located on Islamabad-Kahuta- Kotali
  Road, 74 Km upstream of Mangla Dam
• Distance from Islamabad to Karot is app.60km.

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Karot HPP Project layout
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• Islamabad Kahuta Road

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Karot HPP Project layout
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• Islamabad Kahuta Road

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Karot HPP Project layout
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• Kahuta Karot Road

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Karot HPP Project History

• 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.

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Karot HPP Features of GTZ and MONENCO Studies

• MONENCO

• GTZ

• Project Location 33o 36N 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 36N 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. and 850m
  length
• Bottom Outlet 10 N0. 14m x 12m

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Karot HPP Project Layout
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• Selected Project Layout

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Karot HPP Longitudinal Section
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• Longitudinal Section of Selected Layout

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Karot HPP Longitudinal Tail Race
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• Longitudinal Section of Tail Race Tunnel

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Karot HPP Concrete Dam
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• Frontal View of Dam

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Karot HPP Location of Major Structures
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• Dam , Intake an Power House

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Karot HPP Location of Major Structures
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• Dam , Intake an Power House

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Karot HPP Location of Major Structures
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• Dam Axis

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Karot HPP Location of Major Structures

• Power House Tail Race

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Karot HPP Geotechnical Investigation
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Geotechnical Assessment

• Summary of the Geotechnical Investigation
  Neotectonic Works

• Rock Type Sandstone ,Silt Stone
• Shear Parameters
• Sand Stone C 16MPa
• f 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

• 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.

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Salient Features of Civil Structures

• Dam Axis 1.75Km upstream of Karot Bridge
• Dam Height 91 m
• Rated Discharge 1200 m3/s
• Gross Head 79m
• Rated Capacity 720MW
• Mean Annual Energy 3436 GWh
• Plant Factor 54.5
• Dam Height 90m
• No. and Type of Turbine 4 No. Francis Turbines
• Project Capital Cost 1470 Mill. US

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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

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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

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Economic Financial Analysis

• Economic Analysis

• Financial Analysis

• Reference Date Jan 09
• Discount Rate 12

• Return on Equity 20
• Financial IRR 12.59
• Levelized Tariff 70.013 /MWh
• Payback 5 years

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Economic Financial Analysis
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• Economic Analysis

• Financial Analysis

• Benefit Cost Ratio 1.99
• Net Present Value US 1029 .78 Million
• Economic IRR 21.83

• Return on Equity 20
• Financial IRR 12.59
• Levelized Tariff 70.013 /MWh
• Payback 5 years

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Environmental Social Impact

• 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

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Structures Effected by Karot HPP

• Azad Pattan Bridge

• Shops Restaurants

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Structures Effected by Karot HPP
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• Azad Pattan Bridge

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Structures Effected by Karot HPP

• Grid Station

• Roads

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Structures Effected by Karot HPP
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• Road Relocation

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Conclusion

• No logistical problems due to easy project
  approach
• Project 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