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DELEGATES FROM JAPAN

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  1. SOUTHERN REGIONAL LOAD DESPATCH CENTRE DELEGATES FROM JAPAN

  2. POPULATION :- 103 CRORES AREA :- 3,419 (‘000 SQ KM) STATES :- 29 UT :- 6 BIGGEST CITY :- MUMBAI INDIA POLITICAL MAP GARDEN CITY SILICON VALLY WE ARE HERE

  3. REGIONAL GRIDS INSTALLED CAPACITY NORTHERN :- 31,230 MW EASTERN :- 17,697 MW SOUTHERN :- 31,931 MW WESTERN :- 32,354 MW NORTH-EASTERN :- 2,357 MW TOTAL 115,569 MW NORTHERN REGION NORTH-EASTERN REGION EASTERN REGION WESTERNREGION SOUTHERN REGION

  4. ‘ ELECTRICAL’ REGIONS 1 NORTHERN REGION NORTH-EASTERN REGION EASTERN REGION 2 WESTERNREGION 3 SOUTHERN REGION SAME FREQUENCY FROM GUJARAT TO ARUNACHAL PRADESH WITH EFFECT FROM MARCH 2003 ABOUT 2800 KMS! APART

  5. ‘ELECTRICAL’ REGIONS NORTHERN REGION 1 NORTH-EASTERN REGION EASTERN REGION WESTERNREGION 2 SOUTHERN REGION WITH THE COMMISSIONING OF THE TALA PROJECT CONNECTING THE EASTERN AND NORTHERN GRIDS, INDIA WILL HAVE ONLY TWO GRIDS

  6. ANDHRA PRADESH KARNATAKA TAMIL NADU KERALA SOUTHERN REGION – GEOGRAPHY POPULATION :- 22.5 CRORES ( 22% OF INDIA) AREA :- 651 (‘000 SQ KM)(19% OF INDIA) INSTALLED CAPACITY:- 31,931 MW(27.6%) WEATHER :- South-west monsoon North-east monsoon SEA COAST :- AROUND 4000 KM

  7. SR STATES – GEOGRAPHY ANDHRA PRADESH POPULATION :- 7.6 CRORES AREA :- 275 (‘000 SQ KM) NO OF CONSUMERS :- 162 LAKHS PER CAPITA CONS. :- 560 UNITS MAIN AGRICULTURE CROP :- RICE CLIMATIC CONDITION :- HOT AND HOT & HUMID KARNATAKA POPULATION :- 5.3 CRORES AREA :- 192 (‘000 SQ KM) NO OF CONSUMERS :- 105 LAKHS PER CAPITA CONS. :- 389 UNITS MAIN AGRICULTURE CROP :- COFFEE & RAGI CLIMATIC CONDITION :- HOT AND HOT & HUMID PONDICHERRY POPULATION :- 9.7 LAKHS AREA :- 492 SQ KM PER CAPITA CONS. :- 165 UNITS CLIMATIC CONDITION :- HOT & HUMID KERALA POPULATION :- 3.2 CRORES AREA :- 39 (‘000 SQ KM) NO OF CONSUMERS :- 61 LAKHS PER CAPITA CONS. :- 300 UNITS MAIN AGRICULTURE CROP :- COCONUT & SPICES CLIMATIC CONDITION :- HUMID TAMIL NADU POPULATION :- 6.2 CRORES AREA :- 130 (‘000 SQ KM) NO OF CONSUMERS :- 152 LAKHS PER CAPITA CONS. :- 586 UNITS MAIN AGRICULTURE CROP :- SUGAR CANE & OIL SEEDS CLIMATIC CONDITION :- HOT AND HOT & HUMID

  8. SR STATES – POWER SYSTEM STATISTICS KARNATAKA INSTALLED CAPACITY – 5802 MW MAX DEMAND MET – 5445 MW DAILY CONSUMPTION MAX – 107 MU DAILY CONSUMPTION AVG – 84 MU CONSUMER PROFILE – DOM INDU AGRI COMML OTHERS 37% 26% 33% 3% 1% . ANDHRA PRADESH INSTALLED CAPACITY – 9531 MW MAX DEMAND MET – 7441 MW DAILY CONSUMPTION MAX – 166 MU DAILY CONSUMPTION AVG – 130 MU CONSUMER PROFILE – DOM INDU AGRI COMML OTHERS 22% 29% 34% 5% 10% . TAMIL NADU INSTALLED CAPACITY – 7074 MW MAX DEMAND MET – 7228 MW DAILY CONSUMPTION MAX – 147 MU DAILY CONSUMPTION AVG – 126 MU CONSUMER PROFILE – DOM INDU AGRI COMML OTHERS 21% 33% 27% 9% 10% . KERALA INSTALLED CAPACITY – 2617 MW MAX DEMAND MET – 2426 MW DAILY CONSUMPTION MAX – 39 MU DAILY CONSUMPTION AVG – 34 MU CONSUMER PROFILE – DOM INDU AGRI COMML 76% 2% 6% 16%.

  9. GROWTH OF INSTALLED CAPACITY OF SR IN MW Average Growth ~ 5 %

  10. INSTALLED CAPACITY IN SR NOTE:- --- TAMILNADU HAS ABOUT 1344 MW OF WINDMILL POWER WHICH IS NOT INCLUDED IN THE INSTALLED CAPACITY. --- LIKEWISE MICRO AND CAPTIVE CAPACITIES ARE NOT INCLUDED

  11. SOURCE-WISE INSTALLED CAPACITY OF SR IN MW NUCLEAR OTHERS WIND HYDRO GAS THERMAL 31,931 MW

  12. AGENCY-WISE INSTALLED CAPACITY OF SR 31,931 MW IN MW IPP ANDHRA PRADESH CENTRAL SECTOR KARNATAKA TAMIL NADU KERALA

  13. TYPICAL LOAD CURVE OF SR EVENING PEAK SUMMER WINTER MONSOON WEATHER RESERVOIR CONSUMPTION SCROLL DEMAND

  14. LOAD COMPOSITION IN SOUTHERN GRID Domestic Others Industry Commercial Agriculture

  15. TYPICAL LOAD SPREAD IN SR LOAD 500-1200 MW LOAD 200-500 MW

  16. SR GRID - HIGHLIGHTS • WIDE SPREAD TRANSMISSION NETWORK • HIGHEST CAPACITY HVDC LINK IN COUNTRY • GENERATING UNITS OF VARIED TYPE & CAPACITY • 32 Nos. of 400 KV SUB-STATIONS • 17600 MVA TRANSFORMATION CAPACITY • INTER-REGIONAL LINKS WITH ALL NEIGHBOURING REGIONS

  17. GRID OPERATION – TYPICAL PROBLEMS • LOW FREQUENCY PROBLEMS • FREQUENCY EXCURSES TO LOW VALUES • LOW VOLTAGE OPERATION • VOLTAGE AT EHV GRID LEVEL DIPPES TO CRITICALL LOW LEVELS • SYSTEM BROWNOUTS / BLACK OUTS • LOADS FREQUENTLY CUT OFF DUE TO RELAY OPERATION • INCREASED ELECTRICAL LOSSES • INEFFICIENT OPERATION OF ELECTRIC EQUIPMENTS ...THE END RESULT :

  18. GRID OPERATION PRESENT • STABILISED SYSTEM FREQUENCY • IMPROVED VOLTAGES • MERIT ORDER OPERATION • INTER REGIONAL EXCHANGES • IMPROVED GRID SECURITY JAN - 02 OCT - 04

  19. LANDMARKS • UNIFIED LOAD DESPATCH SCHEME • AVAILABILITY BASED TARIFF • TALCHER-KOLAR HVDC LINK • OPERATIONAL EXCELLENCE • SPECIFIC ACTIONS BY SRLDC • FINANCIAL DISCIPLINE SCHD DRWL ...THESE EVENTS CHANGED THE FACE OF GRID OPERATION

  20. MONSOONS SOUTH WEST MONSOON NORTH EAST MONSOON

  21. TALCHER GRID MAP BHADRAVATI JEYPORE 178x2 SIMHADRI NTPC 2x221 8x4 RSTPP 400 KV LINE PRESENTLY OPERATED AT 220 KV GAZUWAKA(AP) 1 301x2 189 15x2 P 187 195 VISAKHAPATNAM (POWERGRID) 267x2 KHAMMAM HYDERABAD 317 P P 115 197x2 P MMDP 155 P VIJAYAWADA 146x2 221x2 258 RAICHUR NAGARJUNASAGAR P TYPICAL FLOWS ARE FROM NORTH TO SOUTH GRID FOCAL POINT SHIFTED TO KOLAR AFTER COMMISSIONING OF HVDC QUANTUM CHANGES IN FLOW PATTERN LIKELY AFTER COMMISSIONING OF KOODANKULAM 2000 MW Nagjhari 279 172 308 SSLMM MUNIRABAD P KODASAALY 277 52x2 KURNOOL KAIGA SIRSI 120 P N GOOTY CUDDAPAH 60 P DAVANAGERE 300 NELLORE 173 302 KADRA HIRIYUR 330 242 28 NELAMANGALA ALMATHI BANGALORE P MADRAS P KOLAR HOODY TALGUPPA HOSUR MAPS 182 181 63 175 PONDICHERY SALEM 54 P NEYVELI 179 151 164x2 UDUMALPET TRICHY P 130x2 TRICHUR P P 127 130x2 P MADURAI ABOUT 12000 CKM 400KV TRANSMISSION PALLOM T.L.BREAKUP IS NEXT! EDAMON THIRNELVALI KAYANKULAM 2x78 KOODANKULAM THIRUVANATHAPURAM

  22. TRANSMISSION IN SOUTHERN INDIA ABOUT 2800 CKM OF 400 KV LINES ADDED IN THE PAST 2 YEARS

  23. TALCHER KOLAR SCHEMATIC TALCHER Electrode Station Electrode Station KOLAR +/- 500 KV DC line 1370 KM Kolar 400kv System 220kv system Hosur Hoody B’lore Chintamani Salem Madras Cudappah Udumalpet

  24. GENERATING UNITS IN SOUTHERN REGION A.P TYPICAL GENERATOR SPREAD IN SR KAR - HYDRO - THERMAL KER TN GENERATORS ABOVE 1000 MW - GAS / NAPTHA GENERATORS 500 – 1000 MW - NUCLEAR GENERATORS BELOW 500 MW

  25. 400KV SUB-STATIONS IN SR KALPAKKA RAMAGUNDAM 1 GAZUWAKA P SIMHADRI KHAMMAM HYDERABAD P P P MAMIDIPALLY P VIJAYAWADA RAICHUR NAGARJUNASAGAR P SRI SAILAM MUNIRABAD P KURNOOL P GOOTY CUDDAPAH 60 P NELLORE DAVANAGERE HIRIYUR NELAMANGALA BANGALORE TALAGUPPA KOLAR P MADRAS -- OF POWERGRID P HOODY HOSUR -- OF NTPC NEYVELI TPS I (EXP) 63 -- OF ANDHRA PRADESH SALEM P NEYVELI -- OF KARNATAKA UDUMALPET TRICHY P -- OF NLC TRICHUR P P P MADURAI

  26. ICT SUMMARY IN SOUTHERN INDIA

  27. INTER REGIONAL LINKS CHANDRAPUR TALCHAR ORISSA JEYPORE CSEB MAH BALIMELA BARSUR RAMAGUNDAM GAZUWAKA U.SILERU KOLHAPUR L.SILERU A.P BELGAUM AMBEWADI HVDC BI POLE HVDC B2B STATION KAIGA GOA CENTRAL GEN.STATION KAR 220 kV LINE 400 kV LINE KOLAR MAPS 110 kV HVDC LINE NEYVELI PONDICHERRY T.N KER POWERGRID SRLDC

  28. Inter Regional Links 1650 MW 700 MW 1850 MW 900 MW 30,500 MW 2300 16,000 700 MW 32,700 MW 1200MW Present IR Capacity = 9,000 MW 30,500 MW 2000MW

  29. NORTHERN REGION 13450 MW 4600 MW NORTH-EASTERN REGION 6450 MW 1000 MW WESTERNREGION 1300 MW 3200 MW SOUTHERN REGION INTER-REGIONAL TRANSFER BY END OF 11th PLAN (2012) EASTERN REGION 30,000 MW OF INTER-REGIONAL POWER BY 2012

  30. STABILISED SYSTEM FREQUENCY • TYPICAL FREQUENCY CURVE • SCATTER DIAGRAM • HISTOGRAM OF FREQUENCY • FREQUENCY DURATION CURVE • Df/dT CURVE • RECORD FVI OF 0.04

  31. FREQUENCY PROFILE 2002, 2003& 2004

  32. 2004 2003 2002 0 10 20 30 40 50 60 70 80 90 100

  33. 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

  34. 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

  35. ABOUT 16000 MW OF CAPACITY IS BELOW 300 Ps ABOUT14200 MW OF CAPACITY IS BELOW 200 Ps CUM. INS. CAP. ABOUT 7000 MW OF CAPACITY IS BELOW 100 Ps

  36. MERIT ORDER : UNITS BOXED UP

  37. INTER – REGIONAL(01/01/03 TO 10/10/04) (+) IMPORT / (-) EXPORT • INTER REGIONAL UI (WR):- +357 MU – 211 MU • INTER REGIONAL UI (ER):- +693 MU – 21 MU • AVG RATE OF IMPORT FROM WR IN PS/U • 134 PS/U @WR • 247 PS/U @SR • AVG RATE OF EXPORT TO WR IN PS/U • 163 PS/U @SR • 287 PS/U @WR • AVG RATE OF IMPORT FROM ER IN PS/U • 145 PS/U @ ER • 212 PS/U @ SR

  38. MAJOR AND MINOR DISTURBANCES SINCE 1994 SPS NO DISTURBANCES DESPITE LOSING ENTIRE SUPER GENERATING PLANTS LIKERAMAGUNDAM,VIJAYAWADA,KOTHAGUDEM, NORTH CHENNAI, SHARAVATHY ETC

  39. SHARP PEAK DEEP VALLEY DEEP VALLEY

  40. KADAMPARAI PUMP OPERATION SAVINGS OF RS 40 LAKHS EVERY DAY INVESTMENT OF 1600 CRORES SAVED GENERATOR MODE PUMP PUMP THE PUMP MODE WAS NOT UTILISED SINCE INCEPTION!!!

  41. OPTIMAL RESERVOIR UTILISATIONIDUKKI IN KERALA KERALA SAVED RS 50 CRORES BY EFFICIENT UTILISATION OF THE RESERVOIRS AT IDUKKI! POWERGRIDs 400 KV MADURAI-TRIVANDRUM LINE WILL HELP KERALA SAVE EVEN MORE ENERGY IN THE COMING YEAR Rs. Rs. Rs. Rs. Rs. Rs. Rs. Rs. PLANT OPERATORS AT IDUKKI THINK OF THE RESERVOIR LEVEL IN RUPEES RATHER THAN IN FEET!!! Rs. Rs. Rs. Rs. Rs. Rs. Rs. Rs.

  42. FREQUENCY CURVE FOR 9th SEPTEMBER 2004 FVI = 0.04 Avg Freq = 49.99Hz 10 * ∑ (F – 50) 2 FVI = ------------------------------- 24 * 60

  43. SPECIFIC ACTION BY RLDC • LOSS REDUCTION • TAP CO-ORDINATION • FILTER CO-ORDINATION • REDUCED LINE OPENING • HVDC SET POINT CHANGES • VAR MANAGEMENT • REVIVAL OF DORMANT INTER-STATE LINES • 100% DISBURSEMENT IN SETTLEMENT SYSTEM • OPTIMISATION OF INTER-REGIONAL EXCHANGES • MERIT ORDER OPERATION

  44. TALCHER-KOLAR INTER –TRIP SCHEME (STAGE-1) IN THE EVENT OF TRIPPING OF TALCHER-KOLAR POLE/BIPOLE, INSTANTANEOUS AND IMMEDIATE 500MW LOADRELIEF IS OBTAINED FROM THE FOLLOWING SUBSTATIONS : -KARNATAKA: HOODY, KOLAR -TAMILNADU: SRIPERAMBADUR , HOSUR -ANDHRA PRADESH: CHINKAMPALLI Note: This scheme is already in vogue

  45. TALCHER-KOLAR INTER –TRIP SCHEME (STAGE-2) IN THE EVENT OF TRIPPING OF TALCHER-KOLAR BIPOLE ADDITIONAL 1000MW LOADRELIEF TO BE OBTAINED FROM THE FOLLOWING SUBSTATIONS : -KARNATAKA: SOMANAHALLI -TAMILNADU: MADURAI,THIRUVARUR,INGUR,KAIRAKUDDY -ANDHRA PRADESH:SOMAYAJULAPALLI, GOOTY, ANANTAPUR, KARNOOL -KERALA: TRICHUR NORTH , KOZHI-KODE

  46. GENERATION ADDITION & SYSTEM STRENGTHENING (RECENT PAST) GENERATION ADDITION • 500MW TALCHER U # 5 ON COMMERCIAL OPERATION W.E.F 1ST NOV 04 • 500MW U#7 AT NTPC, RAMAGUNDAM TEST SYNCHRONISED ON 26-SEP-04. SYSTEM STRENGTHENING • 220KV INTER-STATE LINES OF AP – KAR IN PARALLEL • SEDAM – TANDUR FROM 18-AUG-04 • GOOTY – ALIPUR FROM 10-SEP-04 • 40% FIXED SERIES COMPENSATION COMMISSIONED AT • GOOTY OF GOOTY-HOODY LINE ON 19/OCT/04 • FLOW INCREASED FROM 110MW TO 140MW. • CUDDAPAH OF N’SAGAR-CUDDAPAH D/C LINE ON 20-21/OCT/04 • FLOW INCREASED FROM 270MW TO 355MW. • 400KV RAMAGUNDAM – HYDERABAD III & IV ON COMMERCIAL OPERATION FROM 01-NOV-04.

  47. Components of inter-utility tariff(Pre – ABT Mechanism) • Fixed charges • Interest on loans • Depreciation • O & M charges • Return on equity • Interest on Working Capital • Energy charges (fuel cost) • Incentives • Surcharge & other levies • No charge for reactive energy