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POWERGRID Welcomes Hon’able Members of “Standing Committee on Energy”

POWERGRID Welcomes Hon’able Members of “Standing Committee on Energy”. POWERGRID – An Overview. It started its operation from 1992-93. Central Transmission Utility & National and Regional Grid Operator

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POWERGRID Welcomes Hon’able Members of “Standing Committee on Energy”

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  1. POWERGRID Welcomes Hon’able Members of “Standing Committee on Energy”

  2. POWERGRID – An Overview • It started its operation from 1992-93. • Central Transmission Utility & National and Regional Grid Operator • Operating around 50,000 circuit kms of EHV transmission lines with 82 nos of EHVAC & HVDC sub-stations having transformation capacity of about 47,000 MVA • Such a system carry more than 40% of total power generated. • System availability around 99.5%

  3. POWERGRID Growth Profile TRANSFORMERCAPACITY(MVA) GROSS FIXED ASSETS (RS. Crore) TURNOVERAND NET PROFIT MANPOWER * MANPOWER TRANSFERRED FROM CEA

  4. POWERGRID; Perspective Plan • Creation of National Grid and enhancing inter-regional transfer capacity from the present level of 9,000 MW to 30,000 MW by 2012 • Investment Required by 2012 : Rs. 71,000 Crores • By POWERGRID : Rs. 51,000 Crore • By Pvt. Investors : Rs.20,000 Crores • Investment to take care of evacuation of Central Sector Share of generation addition of 100,000 MW planned till 2012. • Creation of National Grid of 30,000 MW Capacity will lead to reduction in Capacity addition of 13,000MW i.e. saving of Rs. 50,000 Crore in investments besides fuel cost saving.

  5. R&D and Technology Development in POWERGRID • HVDC & EHVAC Transmission System upto 800 kV with multi Ckts. • Use of fixed & variable Series Compensator (FACTS) • Extra High Towers to avoid deforestation and protection of wild life • Compact Towers to reduce Right Of Way • High Temperature Conductors for increased Loading • Automation of Sub-stations. • Compact S/stn to reduce land requirement. • Satellite imagery for Transmission Line Survey.

  6. POWERGRID beyond Transmission • Consultant for Transmission, telecom and Load Despatch System • Major Consultancy Assignments • Vishnu-Prayag transmission system of UPPCL • Transmission line survey in Afghanistan • Optical fibre network for Bhutan Telecom & National Load Despatch Centre in Bhutan • Execution of transmission line from Srinagar to Leh via Drass , kargil etc. • Facilitating Distribution Sector Reforms as Advisor-cum-Consultant in 105 circles under GOI’s APDRP Scheme. • Strengthening of Transmission, Sub-transmission & Distribution system in UP, Bihar & Goa & Meghalaya. • Rural Electrification of villages of Bihar

  7. POWERGRID & Grid Management • Modernisation of Regional Load Despatch Centres (RLDC) / State Load Despatch Centres (SLDC) by POWERGRID • Implementing State of the Art Unified Load Despatch & Communication (ULDC) Schemes for overall improvement • Manpower • Manning of RLDC by Senior personnel • Training of RLDC & SLDC personnel on regular basis • Procedures • GRID CODE • Availability Based Tariff • All these resulted into: • Significant improvement in System Parameters • Merit Order Operation, Leading to Overall Economy • Improved grid performance • Increased intra and inter-regional Power Exchange and Trading

  8. Philanthropic Approach of POWERGRID • POWERGRID developed and implemented “Environment and Social Policy and Procedure (ESPP)” document in wide consultation with Public, Environmentalists, NGOs and Multilateral Funding Agencies; the only Power Sector Utility to do so • In Talcher Project, too, implementation of Environment and people friendly Social Policy and Procedures • Minimization of forest stretch – only 20 Km in 1,400 Km • Electrification of villages under rural electrification programme • Electrification of more than 30,000 villages is the states of U.P., Bihar & West Bengal • Modernising power supply system in the institutions like BHU, IIT Kharagpur on no profit no loss basis • Improved power supply as well as training centre for modern supply system • Consultations with public in villages • Development of villages

  9. Talcher-Kolar HVDC System

  10. Important Features • Talcher II (2000 MW) Generation Project : First inter-regional project for transfer of total power from Eastern to Southern Region • Transmission System • 2000 MW, (+/-) 500 KV, High Voltage Direct current (HVDC) bipole line from Talcher to Kolar; Longest HVDC link in Asia (more than 1400 Km.) • About 750 Circuit Kms. of Alternating Current (AC) transmission lines for dispersal of power beyond Kolar • Transmission Project Cost & Commissioning ApprovedActual Project Cost 3865 Crore 3100 Crore Commissioning 42 months 33 months Schedule

  11. Unique Features of the Project • Vast Transmission System • Total steel used : 90,000 MT • Total conductor used : 16,000 Kms. • State of the Art HVDC terminals for conversion from AC to DC • Software based controls, protection and Man-Machine Interface System • Design and execution very challenging due to various rivers crossing enroute (Mahanadi, Vamsadhara, Godavari, Krishna and Pennar)

  12. Important Features • Project conceived with Debt : equity ratio of 80:20 Rs. In Crore A. Equity 772 B. Debt 3093 TOTAL (A + B) 3865 • World Bank loan was considered for AC portion only as per available resources • Supplier’s Credit considered for HVDC portion

  13. Pre-Execution Activities (Govt. Approval, Funds tie-up, Tendering & award)

  14. Overview • Investment approval took 33 months; • Feasibility Report submitted in July 1997 • Investment approval obtained in January 2000 • Less time left for execution • To minimize project implementation cycle, pre-execution activities undertaken in parallel with investment approval • WorldBank loan tied up in April’ 98 for AC portion • Bids were invited and processed based on World Bank funding. Bidders entitled to Deemed Export Benefits under WB funding

  15. Overview • Funds tie up with World Bank held up due to economic sanctions • Funding constraint had the potential to delay the project. • Innovative approach to proceed with procurement process was adopted: • by seeking special dispensation in Dec.’98 from Govt. of India for availing Deemed Export Benefits • seeking approval of World Bank for retroactive funding

  16. Surmounting Challenges • In July 1999, GoI granted a special dispensation after persistent follow up • Clearance was obtained from WB for retroactive financing at a later date and meanwhile, Rs. 675 Crore also raised through domestic sources in lieu of World Bank Loan • Rs 1,000 Crore of Suppliers credit raised for HVDC portion without sovereign guarantee or any back up guarantee mainly on POWERGRID’s own financial strength

  17. Execution Activities

  18. Challenges • Execution time of the project got reduced from 48 months to 42 months to match with generation • Time Schedule was tight considering the size of the project • Mid-way during the execution, NTPC advanced the commissioning of its first 500 MW unit putting tremendous pressure on POWERGRID • Acute Right of WayProblems considering the spread over a vast expanse of about 2000 km • Difficult Terrain and Varied Soil Conditions • Challenging Law and Order Situation • Need to evacuate surplus power from ER to energy deficit SR.

  19. Surmounting Challenges • Extra-Ordinary Measures Undertaken for timely execution of project • Unique Project Definition Manual developed • Standardized foundations and tower designs : saved 12-18 months • Standardized bidding document and Systems & Procedures • Contracts awarded within months from the date of project approval by GoI Inspite of all the constraints right from the inception of the project, POWERGRID completed the project 9 months ahead of schedule and at a cost lesser by Rs. 700 cr.

  20. Benefits • Project commenced operation before generation project and surplus power of about 1500 MUs alone could be transferred prior to generation project • Total of about 12,000 MUs transferred from ER to SR from September, 2002 to September, 2004. • About 5000 MUs of surplus power • Balance 7000 MUS from Talcher II Project • Significant improvement in grid performance in SR • Grid frequency improved from 48.0-48.5 Hz to 49.5-50.5 Hz • Substantial improvement in voltage level (typically Bangalore) • Loss Reduction in SR ; Benefit Rs 290 Crore • Saving of Rs. 1500 Crore to SR on account of availing surplus power, thus postponing immediate investment • ER benefited on account of reduction in fixed charges of generation

  21. Transmission System in Southern Region

  22. Southern Region • Constituent States • Andhra Pradesh • Karnataka • Kerala • Tamil Nadu • UT of Pondicherry

  23. Power Supply Scenario - Present As of July, 04 • Installed Generation Capacity- 31328 MW • Peak Demand • Unrestricted 21719MW • Actually Met 20483MW • Peak Deficit (-)1236 MW • Energy Requirement • Unrestricted 11478MU • Energy Availability 11202MU • Energy Deficit (-) 276 MU

  24. POWERGRID Transmission System in SR - Present • Transmission Lines 400 kV and above - 11300 Ckt Kms • EHV Sub-stations - 22 Nos. • Total transformation capacity - 8115 MVA • Interconnection with neighboring regions • Eastern Region • 2000 MW HVDC Talcher – Kolar bipole • 500 MW HVDC Back-to-Back station at Gazuwaka • Western Region • 1000 MW HVDC Back-to-Back station at Chandrapur

  25. On-Going and Planned TR. Schemes of POWERGRID • Transmission Lines 400 kV - 7700 Ckt Kms • EHV Sub-stations - 13 nos. • Total transformation capacity - 11525 MVA • Inter-Regional Capacity • Eastern Region • Augmentation of capacity of Gazuwaka HVDC back-to-back link • Estimated Cost - 5600 Crs

  26. POWERGRID’s Network in Tamil Nadu - Existing • 400 kV Transmission Lines - 3330 ckt.kms • 400/220 kV substations - 6 nos. • 400/220 kV Transformation – 2520 MVA Capacity • Major Load centers being fed through POWERGRID’s transmission network • Sriperumbudur • Trichy • Madurai • Salem • Udumalpet • Hosur

  27. POWERGRID’s Network in Tamil Nadu by 2007-08 • 400 kV Transmission Lines - 3040 ckt.kms • 400/220 kV substations - 5 nos. • 400/220 kV Transformation Capacity – 3150 MVA • Estimated Cost - Rs. 2100 Crs • Transmission network augmentation aims at • Improving power supply to Chennai area through new 400/220 kV substation at Malekottaiyur and completion of 400 kV “Ring” around Chennai • Providing reliable supply to upcoming load centers at Pugalur, Coimbatoor, Karaikudi, Tirunelveli • Strengthening of Tr. Grid in Tamil Nadu

  28. Thank You … POWERGRID

  29. Development of National Grid

  30. National Grid by 2012

  31. MULTI CIRCUIT TOWER ( 70 Mtr. High) DOUBLE CIRCUIT TOWER ( 45 Mtr. High) 1 2 2 1 3 4

  32. Forest & Wild Life Protection 50mtrs 9-25mtrs.

  33. Proposed 400 kV Compact Single pole tower at Delhi & Noida ROW = 85 Mts ROW = 64 Mts 800 kV Normal Tower 800 kV Compact Tower

  34. Proposed Compact Single pole tower Mode :Noida

  35. Control Room,Bhiwadi Switchyard ,Bhiwadi Remote Operation Of Bhiwadi S/S Control Room , Ballabhgarh

  36. Transmission Line Survey through GIS

  37. The States & Shares 9

  38. Just 20 KMs in 1400 KMs through forest area… FOREST CROSSING 12

  39. Frequency Profileof SR 2002, 2003& 2004

  40. COMPARISION OF BANGALORE VOLTAGE-TYPICAL DAY 2003 2004 BETTER VOLTAGE PROFILE MEANS LESS ELECTRICAL LOSSES 2002

  41. Deemed Export Benefits • POWERGRID has to issue Project Authority certificates (PAC) to the contractors, which entitles them to the following Deemed export benefits : • Special import license @ 60% of the FOR value • Deemed export duty draw back facility • Special imprest license / advance intermediate license • Refund of terminal excise duty

  42. Existing Transmission Network

  43. New Transmission Schemes In SR

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