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AUDITORS

POWERGRID CORPORATION OF INDIA LTD. AUDITORS. INSTALLED CAPACITY NORTHERN :- 31,230 MW EASTERN :- 17,697 MW SOUTHERN :- 31,876 MW WESTERN :- 32,354 MW NORTH-EASTERN :- 2,357 MW TOTAL 115,514 MW. NORTHERN REGION. NORTH-EASTERN REGION. EASTERN REGION. WESTERNREGION.

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AUDITORS

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  1. POWERGRID CORPORATION OF INDIA LTD AUDITORS

  2. INSTALLED CAPACITY NORTHERN :- 31,230 MW EASTERN :- 17,697 MW SOUTHERN :- 31,876 MW WESTERN :- 32,354 MW NORTH-EASTERN :- 2,357 MW TOTAL 115,514 MW NORTHERN REGION NORTH-EASTERN REGION EASTERN REGION WESTERNREGION SOUTHERN REGION

  3. ‘ 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

  4. ‘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

  5. SOUTHERN REGION – GEOGRAPHY POPULATION :- 22.5 CRORES ( 22% OF INDIA) AREA :- 651 (‘000 SQ KM)(19% OF INDIA) INSTALLED CAPACITY:- 31,876 MW(27.6%) WEATHER :- South-west monsoon North-east monsoon SEA COAST :- AROUND 4000 KM

  6. 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 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

  7. 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 – INDS -26%, DOM-37%, COMM-3%, IRRI-33% & OTHERS-1% ANDHRA PRADESH INSTALLED CAPACITY – 9531 MW MAX DEMAND MET – 7441 MW DAILY CONSUMPTION MAX – 166 MU DAILY CONSUMPTION AVG – 130 MU CONSUMER PROFILE – INDS -29%, DOM-22%, COMM-5%, IRRI-34% & OTHERS-10% KERALA INSTALLED CAPACITY – 2617 MW MAX DEMAND MET – 2426 MW DAILY CONSUMPTION MAX – 39 MU DAILY CONSUMPTION AVG – 34 MU CONSUMER PROFILE – INDS -2%, DOM-76%, COMM-16%, IRRI-6% TAMIL NADU INSTALLED CAPACITY – 7074 MW MAX DEMAND MET – 7228 MW DAILY CONSUMPTION MAX – 147 MU DAILY CONSUMPTION AVG – 126 MU CONSUMER PROFILE – INDS -33%, DOM-21%, COMM-9%, IRRI-27% & OTHERS-10%

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

  9. INSTALLED CAPACITY IN SR

  10. SOURCE-WISE INSTALLED CAPACITY OF SR OTHERS IN MW NUCLEAR WIND HYDRO GAS THERMAL 31,876 MW TAMILNADU HAS ABOUT 800 MW OF WINDMILL POWER WHICH IS NOT INCLUDED IN THE INSTALLED CAPACITY. LIKEWISE MICRO AND CAPTIVE CAPACITIES ARE NOT INCLUDED

  11. AGENCY-WISE INSTALLED CAPACITY OF SR 31,876 MW IN MW IPP ANDHRA PRADESH CENTRAL SECTOR KARNATAKA TAMIL NADU KERALA

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

  13. LOAD COMPOSITION IN SOUTHERN GRID Domestic Others Industry Commercial Irrigation

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

  15. 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

  16. GRID OPERATION IN THE PAST • LOW FREQUENCY PROBLEMS • FREQUENCY AT 48 HZ AND BELOW FOR MOST TIME • LOW VOLTAGE OPERATION • VOLTAGE AT BANGALORE DIPPED TO AS LOW AS 300 Kv!!!! • FREQUENT GRID DISTURBANCES • LOADS FREQUENTLY CUT OFF DUE TO RELAY OPERATION • INCREASED ELECTRICAL LOSSES • INEFFICIENT OPERATION OF ELECTRIC EQUIPMENTS • INEFFICIENT UTILISATION OF RESOURCES FREQUENT DISTURBANCES CAUSED GENERATION LOST EVEN AT PIT HEAD STATIONS • GRID OPERATION FOCUSSED ON FIRE-FIGHTING RATHER THAN OPTIMISATION AND ECONOMY ...THE END RESULT : COSTLY AND LOW QUALITY OF POWER!

  17. GRID OPERATION PRESENT • STABILISED SYSTEM FREQUENCY • IMPROVED VOLTAGES • MERIT ORDER OPERATION • INTER REGIONAL EXCHANGES • IMPROVED GRID SECURITY

  18. 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

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