Gsm hvdc kolar_talcher line
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  • 1. 1 Developing a PowerDeveloping a Power Market in IndiaMarket in India - A Transmission- A Transmission PerspectivePerspective
  • 2. 2 • Indian Power Sector – Installed capacity – 107,000 MW (Thermal-76%, Hydro-23%, Nuclear-1%) Peak Demand – 82,000 MW Transmission lines - 5 Million Ckt. kms Regional Grids – 5 National Grid under progress Growth Rate of energy– 9% per annum INDIAN POWER SECTOR- A PROFILE
  • 3. 3
  • 4. 4 FUTURE POWER SUPPLY SCENARIOFUTURE POWER SUPPLY SCENARIO • Peak demand (expected)- 157,000 MW • Capacity Addition envisaged-100,000 MW in next 10 years • Goal – Power for all by 2012 BY THE YEAR 2012
  • 5. 5 NEED FOR NATIONAL GRIDNEED FOR NATIONAL GRID  Uneven disposition of Natural resources - Coal reserves concentrated in Eastern region - Hydro potential mainly in North Eastern & Northern region  Establishment of large sized pit head stations to achieve economy of scale  Load Centers located at distant locations in Northern, Western & Southern regions  Constraints on Right-of-Way (ROW)  Flexible & high capacity transmission system required for power transfer to different regions
  • 6. 6
  • 7. 7 Phase – 1 – Already completed • Interconnection of Regional Grids through HVDC Back-to-Back links having cumulative capacity of 5000 MW Phase – 2 – Partly completed • Hybrid system comprising of high capacity HVDC and HVAC lines (both 765 kV and 400 kV)  2000MW, 1400kms long HVDC bipole between Eastern and Southern regions – completed  400kV synchronous interconnections between Eastern and Western regions resulting into synchronous operation of power system having 50,000MW capacity – completed This will transfer operational surplus and would provide flexibility in inter-regional transfer of power • Present cumulative capacity is 8000 MW • On an average, 1500-2000 MW is being transferred and about 35 MU/day is being traded PLAN FOR NATIONAL GRID-A PHASED DEVELOPMENT
  • 8. 8 Phase – 2 • Most of transmission lines would be part of associated transmission system of large sized generation project. • Cumulative inter-regional capacity would be 23,000 MW Phase – 3 – to be completed by 2012 • Ring of 765 kV transmission lines inter-connecting ER, WR and NR • Cumulative capacity would be 30,000 MW • This would be utilised for transfer of short term as well as long term surplus Estimated Investment : US$ 20 billion – POWERGRID’s Investment : US$11 billion – Private sector Investment : US$9 billion This will facilitate development of power market PLAN FOR NATIONAL GRID-A PHASED DEVELOPMENT
  • 9. 9
  • 10. 10 Phase – II & III
  • 11. 11 Salakati Bongaigaon Birpara Malda Dehri Sasaram Sahupuri Allahabad North-eastern Eastern Northernn Belgaum Kolhapur Budhipadar Rourkela Korba Raipur Auraiya Malanpur Western Southern Balimela Upper Sileru Chandrapur Ramagundam Jeypore Gazuwaka Singrauli Vindhyachal 400kV 220kV 220kV 500MW 500MWW 220kV 1000MW 500MW 220kV 400kV 220 kV 220kV Talcher Kolar 2500MW Gorakhpur/ Lucknow MAJOR INTER REGIONAL LINKS-8000 MW CAPCITY
  • 12. 12 GROWTH OF CUMULATIVE CAPACITY OF INTER- REGIONAL LINKS 8000 23000 30000 0 5000 10000 15000 20000 25000 30000 35000 Plan CumulativeCapacity(MW) Present By 2006-07 By 2011- 12
  • 13. 13 Major Issues & Suggestions Issues • Uncertainty in Generation Addition • Mobilisation of Funds • Recovery of Investment • Proper Energy Accounting System needs to be evolved to take care of unscheduled power transfer • Accounting of transmission losses in different conditions • Wheeling charges to different owners
  • 14. 14 Major Issues & Suggestions Suggestions • Creation of Transmission Highways from resource pockets to load centres, without linking them to a particular generation project • Special methodology need to be adopted for recovery of transmission charges of Transmission highways • Most important is that there should be long term commercial agreement to enable huge investment in transmission sector
  • 15. 15