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Karrivalasa Pumped Storage Project (1000 MW) Vizianagaram District, Andhra Pradesh

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Karrivalasa Pumped Storage Project (1000 MW) Vizianagaram District, Andhra Pradesh New and Renewable Energy Development Corporation of Andhra Pradesh Limited Techno-Commercial Feasibility Report (Milestone - 2) Karrivalasa Pumped Storage Project (1000 MW) Vizianagaram District, Andhra Pradesh 73/1, ST. MARK'S ROAD BANGALORE 560 001 INDIA MAY 2020 Revision Control Sheet TCE.11742A-CV- SP/KVS/AJ/ R0 14-05-2020 KVS PLNR 3074-FR-30006 ASK TCE.11742A-CV- SP/KVS/AJ/ P0 04-03-2020 KVS PLNR 3074-FR-30006 ASK Rev. No. Document No. Date Prepared by Checked by Approved by Proprietary Notice and Version Control This document contains confidential information for use only by M/s. New and Renewable Energy Development Corporation of Andhra Pradesh (NREDCAP) Limited; for the Project of Preparation of Techno-Commercial Feasibility Reports for Seven (7) PSP Sites in Andhra Pradesh which is provided for the sole purpose of permitting the recipient to evaluate the information submitted herewith. In consideration of receipt of this document; unless agreed to in contrary in the Contract; the recipient agrees to maintain such information in confidence and to not reproduce or otherwise disclose this information to any person outside the recipient’s organisation; except that there is no obligation to maintain the confidentiality of any information which was known to the recipient prior to receipt of such information from Tata Consulting Engineers Limited, or becomes publicly known through no fault of recipient, or Tata Consulting Engineers Limited, or is received without obligation of confidentiality from a third party owing no obligation of confidentiality to Tata Consulting Engineers Limited. All information given under this version over rides all and any kind of offers, assumptions, deliverables and contracts submitted verbally (and subsequently communicated in writing) or in writing or otherwise given under any and all previous version/s.” CONTENTS Chapter - I Introduction .................................................................................................. 1 1.0 General ....................................................................................................................... 1 1.1. Type of the Project ...................................................................................................... 2 1.2. Location of Project Area .............................................................................................. 2 1.3. Access by Air/Rail/Road/Ferry, Sea Port & Other Communication Facilities ............... 3 1.4. General Climatic Conditions in the Project Area .......................................................... 3 1.5. General Description of Topography, Physiography and Geology of Project Area ........ 3 1.6. Historical background of the project ............................................................................ 3 1.7. Need for the Project, Possible Options and Justification for Selected Option .............. 5 1.8. Alternative studies carried out for various major components of the project and final choice of the project parameters ................................................................................. 6 1.9. Natural Resources of the State/Region ....................................................................... 6 1.10. Socio-Economic Aspects ............................................................................................ 6 1.11. Land Required for the Project Construction ................................................................ 6 1.12. Population Affected by the Project & Occupation of the People Affected .................... 7 1.13. Environmental aspects ................................................................................................ 7 1.14. Inter State / Inter-national aspects .............................................................................. 7 1.15. Defense angle ............................................................................................................. 7 1.16. Cost and benefits of the scheme ................................................................................. 8 1.17. Construction Program ................................................................................................. 8 1.18. Salient Features .......................................................................................................... 9 Chapter - II Justification of the Project from Power Supply Angle ............................... 12 2.1 Justification of Project from Power Supply - Demand Considerations ....................... 12 2.2 Details of Scheme for Evacuating Power for Karrivalasa PSP .................................. 13 2.3 Available Generating Capacity in the All India/Region/State ..................................... 14 2.4 Peak Load and Energy Requirement in Future in Andhra Pradesh ........................... 14 2.5 Likely Addition to Generating Capacity in Future in Andhra Pradesh ........................ 15 2.6 On-Peak and Off-Peak periods ................................................................................. 16 2.7 Need for Proposed Karrivalasa Pumped Storage HEP ............................................. 18 Chapter - III Basin Development .................................................................................. 21 3.1 The Course of the River ............................................................................................ 21 NREDCAP Limited i Karrivalasa Pumped Storage Project (1000 MW) Techno-Commercial Feasibility Report (R0) May 2020 3.2 Power Potential of the River Basin and Stages of Development ............................... 21 3.3 Trans-Basin Diversion of Waters............................................................................... 21 3.4 Fitment of the Scheme in the Overall Basin Development......................................... 22 3.5 Fitment of the Scheme in the Power Potential Assessment Studies carried out by CEA ................................................................................................................................. 22 3.6 Effect of Future Upstream/Downstream developments on the Potential of Proposed Scheme .................................................................................................................... 22 3.7 Conversion of storage scheme to ROR, if any .......................................................... 22 Chapter - IV Interstate / International Aspects ............................................................. 23 4.1 States/Countries Traversed by the River ................................................................... 23 4.2 Distribution of catchment in states/countries and yields from the catchment of state/country concerned ............................................................................................ 23 4.3 Effect of the following on the project ......................................................................... 23 4.4 Existing riparian use, quantum of water presently utilized, commitments for ongoing projects, plans for future development, balance share of the state/country and proposed utilization by this project ............................................................................................ 24 Chapter - V Survey and Investigation .......................................................................... 25 5.1. Topographical Surveys ............................................................................................. 25 5.2. Geology and Geo-technical Features ........................................................................ 25 5.3. Seismicity ................................................................................................................. 27 5.4. Site Geology ............................................................................................................. 28 5.5. Foundation Investigations ......................................................................................... 29 5.6. Hydrological and Meteorological Investigations ......................................................... 30 Chapter - VI Hydrology ................................................................................................ 31 6.0 General ..................................................................................................................... 31 6.1 Hydrological Inputs for the Project Planning .............................................................. 32 6.2 Effect of Project Development on Hydrologic Regime ............................................... 36 6.3 Hydrological Studies ................................................................................................. 37 6.4 Sedimentation ........................................................................................................... 41 Chapter - VII Reservoirs .............................................................................................. 42 7.1 Reservoir Characteristics and Run-off Studies .......................................................... 42 7.2 Sedimentation Data and Studies ............................................................................... 43 7.3 Fixation of Storage and Reservoir Levels .................................................................. 48 7.4 Life of Reservoir ........................................................................................................ 50 7.5 Annual Losses .......................................................................................................... 50 NREDCAP Limited ii Karrivalasa Pumped Storage Project
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