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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Karot HPP – Project layout
Kahuta Karot RoadKahuta Karot Road
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Karot HPP – Project layout
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
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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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Karot HPP – Location of Major Structures
Dam AxisDam Axis
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Karot HPP – Location of Major Structures
Power House & Tail RacePower House & Tail Race
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Karot HPP – Location of Major Structures
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
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Reference Date Jan 09
Discount Rate 12%
Return on Equity 20 %Financial IRR 12.59%Levelized Tariff
70.013 $/MWhPayback 5 years
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Economic & Financial Analysis
Economic AnalysisEconomic Analysis Financial AnalysisFinancial Analysis
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Benefit Cost Ratio 1.99
Net Present ValueUS$
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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Structures Effected by Karot HPP
Grid StationGrid Station RoadsRoads
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Structures Effected by Karot HPP
Road RelocationRoad Relocation
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Structures Effected by Karot HPP
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
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