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POWERGRID CORPORATION OF INDIA LTD

POWERGRID CORPORATION OF INDIA LTD. GRID OPERATION IN THE SOUTHERN REGION. YESTERDAY, TODAY ……AND TOMORROW. GRID OPERATION IN THE PAST. LOW FREQUENCY PROBLEMS FREQUENCY REMAINED AT 48 HZ AND BELOW FOR MOST PART LOW VOLTAGE OPERATION VOLTAGE AT BANGALORE DIPPED TO AS LOW AS 300 Kv!!!!

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POWERGRID CORPORATION OF INDIA LTD

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  1. POWERGRID CORPORATION OF INDIA LTD

  2. GRID OPERATION IN THE SOUTHERN REGION YESTERDAY, TODAY ……AND TOMORROW

  3. GRID OPERATION IN THE PAST • LOW FREQUENCY PROBLEMS • FREQUENCY REMAINED AT 48 HZ AND BELOW FOR MOST PART • LOW VOLTAGE OPERATION • VOLTAGE AT BANGALORE DIPPED TO AS LOW AS 300 Kv!!!! • FREQUENT GRID DISTURBANCES • A DISTURBANCE ALMOST EVERY MONTH • IMMENSE FINANCIAL LOSSES FOR INDUSTRY • LOADS FREQUENTLY CUT OFF DUE TO RELAY OPERATION • INCREASED ELECTRICAL LOSSES • INEFFICIENT OPERATION OF ELECTRIC EQUIPMENTS • GRID OPERATION FOCUSSED ON FIRE-FIGHTING RATHER THAN OPTIMISATION AND ECONOMY ...THE END RESULT : COSTLY AND LOW QUALITY OF POWER!

  4. LANDMARK EVENTS • ADDITION OF GENERATING CAPACITY • TALCHER-KOLAR AND ASSOCIATED SYSTEM • UNIFIED LOAD DESPATCH SCHEME • TRANSMISSION SYSTEM AUGMENTATION • AVAILABILITY BASED TARIFF ...THESE EVENTS CHANGED THE FACE OF GRID OPERATION

  5. IMPROVEMENTS IN GRID OPERATION • POWER SYSTEM PARAMETERS • FREQUENCY IMPROVED • VOLTAGES STABLE ACROSS THE GRID • OPTIMAL OPERATION • LOSSES REDUCED BY 1-1.5 % THROUGHOUT THE GRID • SAVINGS OF ABOUT Rs 450 CRORES EVERY YEAR! • MERIT ORDER OPERATION :- OPTIMISATION • HYDRO CONSERVATION • HEALTHY RESERVOIR LEVELS • USE HYDRO GENERATION FOR PEAKING AND RESERVE • TALCHER – KOLAR LINK • INTER REGIONAL POWER :- 9770MUs/1600MW MAX • UTILISATION OF COMMERCIAL MECHANISM • TURNOVER OF 4402 MU ON UI WORTH 800 CRORES • COSTLY GENERATION REDUCED. ...THE END RESULT : AN EFFICIENT AND OPTIMAL OPERATED GRID

  6. GRID OPERATION TODAY • EFFICIENT AND OPTIMAL GRID OPERATION : REDUCED COST OF POWER • NO GRID DISTURBANCE FOR PAST 20 MONTHS • BETTER HYDRO RESERVES • REDUCED LOSSES

  7. GRID OPERATION IN THE FUTURE: A LITTLE ‘CRYSTAL BALL GAZING’ • NEW INVESTMENTS WORTH Rs 4665CRORES IN THE SOUTHERN REGION • ROBUST AND CONSTRAINT FREE GRID • ACCESS TO AND EVACUATION OF CHEAPER POWER • GRID PARAMETERS FURTHER IMPROVED • REDUCED COST OF POWER :- MERIT ORDER OPERATION

  8. PROJECTS IN THE PIPELINE IN SOUTHERN REGION

  9. PROJECTS IN SOUTHERN REGION • HIRIYUR STATION COMMISSIONED RECENTLY • 400 KV NELAMANGALA-MYSORE LINE WITH 400 KV SUBSTATION AT MYSORE • 400 KV KAIGA-NARENDRA LINK • 400 KV SUB STATION AT NARENDRA • 400 KV 2nd GOOTY-BANGALORE LINK • 400 KV RAICHUR-GOOTY D/C QUAD LINE • 400 KV STATION AT HASSAN BY LILO OF EXISTING TALAGUPPA-NELAMANGALA LINE AT HASSAN • 400 KV RING MAIN AROUND BANGALORE

  10. PROJECTS IN SOUTHERN REGION • 400 KV MADURAI-TRIVANDRUM LINE • 400 KV RAMAGUNDAM – HYDERABAD-GOOTY-NELAMANGALA LINE: RS 390 CRORES • ADDITIONAL 500 MW HVDC POLE AT GAZUWAKA: WORTH Rs 770 CRORES • ENHANCEMENT OF CAPACITY OF TALCHER POLES BY 500MW (FROM 2000 MW TO 2500 MW): Rs 90 CRORES • SYSTEM AUGMENTATION SCHEMES : Rs 415 CRORES • KOODANKULAM NUCLEAR PLANT EVACUATION SCHEME – 2000 MW CAPACITY- WORTH ABOUT Rs 1700 CRORES • WR STRENGTHENING/EVACUATION WILL FACILITATE BETTER IMPORTS THROUGH HVDC CHANDRAPUR- WORTH ABOUT Rs 5000 CRORES • ANOTHER HVDC LINK TO SR FROM ER • SYSTEM EXPANSION SCHEMES WORTH Rs 1233 CRORES

  11. CHITOOR NLMNG DETAILS KOLAR HOODY ALMATHI TIRUNELVELI-EDAMON AND TIRUNELVELI-COCHIN ON MULTI-CKT TOWERS ENJOY THE EXISTING CORRIDOR OF 220 KV EDAMON-KAYATHAR LINE FOR PART OF THE DISTANCE. TIRUNELVELI-EDAMON TO BE OPERATED AT 220 KV INITIALLY KOODANKULAM-TIRUNELVELI LINK IS THROUGH TWO 400 KV D/C QUAD LINES ON TWO SEPARATE CORRIDORS. TENTATIVE COST 1700CR SP-BUDUR S’HALLI HOSUR MELKOTTAIYUR MYSORE BAHOOR SALEM NEYVELI NLY-EXP ARASUR JAYAMKONDAM PUGALUR THRISSUR UDUMALPET TRICHY KARAIKUDI COCHIN MADURAI KOODANKULAM TRANSMISSION SYSTEM AS APPROVED IN 17TH STANDING COMMITTEE MEETING HELD AT BANGALORE IN SEP03 EDAMON TIRUNELVELI TRIVANDRUM KOODANKULAM

  12. POWERGRID’S PROPOSAL FOR DEVELOPMENT OF STATE INFRASTRUCTURE • READY FOR JOINT VENTURE WITH STATES/PRIVATE FOR TRANSMISSION AND DISTRIBUTION • RURAL ELECTRIFICATION • UMBRELLA AGREEMENT UNDER THE AEGIS OF MOP • APDRP • CONCEPT TO COMMISSIONING • 10-15% CONSULTANCY CHARGES • WORK IN PROGRESS AT BIHAR • READY FOR JOINT VENTURE WITH STATES FOR TELECOM : ANDHRA PRADESH MODEL

  13. FREQUENCY PROFILE 2002, 2003& 2004

  14. COMPARISION OF BANGALORE VOLTAGE-TYPICAL DAY 2003 2004 BETTER VOLTAGE PROFILE MEANS LESS ELECTRICAL LOSSES REALITY BITE: FARMERS IN KARNATAKA ARE HAPPY WITH FEWER HOURS OF QUALITY POWER!!. EFFICIENCY OF PUMPS AT TG HALLI WATER WORKS IMPROVED! 2002 NEXT: WATER SUPPLY TO BANGALORE CITY

  15. WATER SUPPLY TO BANGALORE PUMPING LOSSES REDUCED ENORMOUS SAVINGS TO THE STATE MOTOR BURNING AND MAINTENANCE COSTS ALSO CAME DOWN DRASTICALLY LOW VOLTAGE PROBLEMS AROUND BANGALORE HAMPERED WATER SUPPLY EARLIER WITH BETTER VOLTAGE NOW, PUMPING EFFICIENCY HAS IMPROVED 400 KV STATION AT MYSORE BEING COMMISSIONED ON WAR FOOTING TO FURTHER FORTIFY THIS PART OF THE GRID

  16. 600 300 150 NEXT: BOXED UP UNITS

  17. MERIT ORDER : UNITS BOXED UP

  18. OPTIMAL RESERVOIR UTILISATIONLINGANAMAKKI IN KARNATAKA MORE THAN 400 MILLION UNITS OF ENERGY SAVED DUE TO IMPROVED OPERATIONAL EFFICIENCY AND OPTIMISATION THIS IS WORTH Rs 80 CRORES ENERGY STORAGE IN MU (THIS YEAR) :- 1480MILLION UNITS ENERGY STORAGE IN MU (LAST YEAR) :- 834MILLION UNITS

  19. BANGALORE 400 KV RING MAIN(INTERIM) FROM GOOTY KOLAR NELAMANGALA HOODY 400 KV RING MAIN NEXT: FINAL SOMANAHALLI

  20. BANGALORE 400 KV RING MAIN(FINAL) FROM GOOTY KOLAR NELAMANGALA HOODY 400 KV RING MAIN SOMANAHALLI

  21. SYSTEM AUGMENTATION SCHEMES • LILO OF KOLAR-MADRAS LINE AT MELKOTTAIYUR • LILO OF CUDDAPAH-MADRAS LINE AT CHITTOR • LILO OF ONE CKT NELLORE-MADRAS LINE AT ALMATHI • LILO OF ONE CKT OF TRICHY MADURAI LINE AT KARAIKUDI • 400 KV SS AT ALMATHI • 400 KV SS AT MELKOTTAYUR • 400 KV SS AT CHITOOR • 400 KV SS AT KARAIKUDI • 400 KV D/C MADURAI-PUGALUR LINE • 400 KV D/C NEYVELI-PUGALUR LINE • 400 KV SS AT PUGALUR • 400 KV D/C UDUMALPET- ARASUR LINE • 400 KV SS AT ARASUR

  22. KOODANKULAM EVACUATION • 400 KV D/C QUAD LINE TO TIRUNELVELI • 2nd 400 KV D/C QUAD TO TIRUNELVELI ON SEPARATE ROUTE • LILO OF 400 KV D/C MADURAI-TRIVANDRUM @ TIRUNELVELI • 400 KV D/C TIRUNELVELI-UDUMALPET LINE • 400 KV D/C TIRUNELVELI-COCHIN-THRISSUR LINE • 400 KV D/C TIRUNELVELI-EDAMON LINE • 400 KV D/C TIRUNELVELI-COCHIN-THRISSUR LINE AND THE 400 KV D/C TIRUNELVELI-EDAMON LINE WOULD BE ON THE SAME MULTI-CIRCUIT TOWER USING ROW OF EXISTING 220 KV EDAMON-KAYATHAR LINE. • 400 KV D/C TIRUNELVELI-EDAMON LINE TO BE CHARGED AT 220 KV INITIALLY. • 400 KV D/C TIRUNELVELI-EDAMON LINE WOULD LATER BE EXTENDED TO TRIVANDRUM

  23. UI DETAILS

  24. SUMMARY OF UI – 78 WKS(FROM 01/JAN/03 TO 27/JUN/04)

  25. UI IN SR (FROM 01/01/03 TO 27/06/04) • TOTAL UI TURNOVER :- 4402 MU • TOTAL CONSUMPTION OF SR :- 207136 MU • UI MARKET IS 2 % OF THE TOTAL ENERGY MARKET • TOTAL CGS GENERATION:- 54458 MU • UI MARKET IS 8% OF THE TOTAL ISGS ENERGY MARKET …..CONTD

  26. UI IN SR (FROM 01/01/03 TO 27/06/04) • TOTAL UI AMOUNT DISBURSED:- 823 CR • INTER REGIONAL UI:- +876 MU -151 MU • AVG WEEKLY TRANSACTION:- 57 MU • AVG WEEKLY UI AMT DISBURSED:- 10.5 CR • AVG RATE OF EXPORT TO WR IN PAISE/U • 144 PS/U @SR • 266 PS/U @WR • AVG RATE OF IMPORT FROM ER IN PAISE/U • 144 PS/U @ ER

  27. HVDC BHADRAWATI (WR-SR LINK) • TOTAL WR-SR IR LINK TRANSMISSION CHARGES (01/01/03 TO 30/06/04) :- 102.33CRORES • TOTAL AMOUNT IN IRE A/C TOWARDS SR BENEFICIARIES (01/01/03 TO 30/06/04) :- 23.05CRORES • 23 % OF ANNUAL TRANSMISSION CHARGE

  28. AVAILABILITY BASED TARIFF A RATIONAL TARIFF STRUCTURE SCIENTIFIC SETTLEMENT SYSTEM …..COMPLEMENTS GRID SECURITY……RATHER THAN COMPROMISING IT !!!

  29. ULDC-THE EYES AND EARS OF THE SYSTEM OPERATOR • ALL CONSTITUENTS GET THE SAME DATA IN REAL TIME. • TRANSPARENCY. • SYNERGY IN OPERATION. • QUANTUM LEAP IN VISIBILITY TO OPERATOR. • INCREASED CONFIDENCE. • FOCUS ON SECURITY AND ECONOMY. • INCREASED SCOPE FOR TRANSACTIONS WITH OTHER REGIONS • PREMPTIVE, DYNAMIC “EARLY WARNING” SYSTEMS. • GRID LESS VULNERABLE TO DISTURBANCES. • ACCURATE AND EASY ANALYSIS OF GRID INCIDENTS • FASTER RESTORATION AFTER PERTURBATION • COMPREHENSIVE ENERGY MANAGEMENT SYSTEM FUNCTIONS. PROJECT COST:Rs 6840 MILLION ----COMPLETED SIX MONTHS AHEAD

  30. TALCHER KOLAR HVDC LINE LENGTH:1400 KMS TALCHER ORISSA) KOLAR (KARNATAKA) HVDC STATION

  31. TALCHER KOLAR LINK • ONE OF THE LONGEST HVDC LINES IN THE WORLD • DESIGNED TO EVACUATE 2000 MW • COMMISSIONED IN ADVANCE TO UTILISE NON-PEAK SURPLUS POWER OF EASTERN REGION • COMMISSIONED 9 MONTHS AHEAD OF SCHEDULE • COST INCURRED Rs 3,100 CRORES AGAINST APPROVED COST OF Rs 3,866 CRORES:- SAVING OF NEARLY 800 CRORE RUPEES • THE PROJECT HAS USED APPROXIMATELY 90,000 TONNES OF STEEL AND 16,000 KM OF CABLES ABOUT 9770 MU IMPORTED ON THIS LINK TILL DATE!!

  32. Thank you

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