1 POWER GRID CORPORATION OF INDIA LIMITED BANGALORE

2 NATIONAL GRID AND IMPROVEMENTS IN SOUTHERN GRID. By K.SATYAM EXECUTIVE DIRECTOR POWERGRID

3 POWERGRID – An Overview  STARTED COMMERCIAL OPERATION IN  WHEELS MORE THAN 40% OF THE POWER GENERATED IN THE COUNTRY  OPERATES & MAINTAINS  50,000 CKMS. OF EHV TR. SYSTEM  82 SUB-STATIONS  OVER 99% SYSTEM AVAILABILITY.  CONSISTENTLY PROFIT MAKING SINCE INCEPTION  PROFIT LAST YEAR WAS RS. 748 CRS.

4 INDIAN POWER SYSTEM GROWTH IN INSTALLED CAPACITY GROWTH IN INSTALLED CAPACITY PRE-INDEPENDENCE1362 MW PRE-INDEPENDENCE1362 MW YEAR 20041,12,000 MW YEAR 20041,12,000 MW THERMAL79,000 MW THERMAL79,000 MW NUCLEAR2720 MW NUCLEAR2720 MW HYDRO30,000 MW HYDRO30,000 MW YEAR 2012 (PROJECTED)2,10,000 MW YEAR 2012 (PROJECTED)2,10,000 MW

5 Indian Power System: Indian Power System: BY 2012 PROJECTED INSTALLED CAPACITY- 210,000 MW CAPACITY ADDITION ENVISAGED BY MoP THERMAL  IN 10 TH PLAN ( )- 40,000 MW  IN 11 TH PLAN ( )- 60,000 MW  HYDRO  IN 10TH AND 11TH PLAN- 50,000 MW (APPROX MW CAPACITY ADDITION PER YEAR) MAJOR RESOURCES FOR CAPACITY ADDITION  HYDRO POTENTIAL IN J&K, HP & NER  COAL POTENTIAL IN BIHAR, ORISSA

6 POWERGRID Perspective Plan …  ADDITION OF 60,000 CKM OF TRANSMISSION NETWORK TO EVACUATE 1,50,000 MW BY  INVESTMENT OF RS. 71,000 CRORE  CREATION OF NATIONAL GRID  ENHANCING INTER-REGIONAL TRANSFER CAPACITY TO 30,000 MW BY 2012  CONVERGENCE  DIVERSIFICATION INTO TELECOM  APDRP PROGRAMME  RURAL ELECTRIFICATION  SUB-TRANSMISSION AUGMENTATION

7 TOWARDS A NATIONAL GRID

8 SOUTHERN REGION WESTERN REGION EASTERN REGION NORTHERN REGION NORTH- EASTERN REGION

9 SOUTHERN REGION WESTERNRE GION EASTERN REGION NORTHERN REGION NORTH- EASTERN REGION ‘ELECTRICAL’ REGIONS SAME FREQUENCY FROM GUJARAT TO ARUNACHAL PRADESH WITH EFFECT FROM MARCH 2003 ABOUT 2800 KMS! APART WITH COMMISSIONING OF TALA PROJECT INDIA WOULD HAVE ONLY TWO GRIDS!!! SOUTHERN GRID AND NORTHERN GRID

10 TOWARDS A NATIONAL GRID INVESTMENTS IN CENTRAL SECTOR TRANSMISSION PROJECTS ENVISAGED FOR 10 th AND 11 tH PLAN: 71,000 CRORES INVESTMENTS IN CENTRAL SECTOR TRANSMISSION PROJECTS ENVISAGED FOR 10 th AND 11 tH PLAN: 71,000 CRORES INTER REGIONAL TRANSFER CAPACITY ENVISAGED BY 2012 : 30,000 MW INTER REGIONAL TRANSFER CAPACITY ENVISAGED BY 2012 : 30,000 MW OVER 12,000 MU OF POWER WAS TRANSMITTED THROUGH CENTRAL SECTOR LINES LAST YEAR THIS POWER IS WORTH 2400 CRORE RUPEES

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12 A NATIONAL GRID THE ADVANTAGES STRONG BACKBONE ‘ANYWHERE TO ANYWHERE’ ’ TRADING STRONG BACKBONE ‘ANYWHERE TO ANYWHERE’ ’ TRADING ECONOMIC OPERATION ECONOMIC OPERATION HARNESS DIVERSITY HARNESS DIVERSITY HARNESS DIVERSITY HARNESS DIVERSITY SAVING OF 13,000 MW BY YEAR 2012 SAVING OF 13,000 MW BY YEAR 2012 ADDED STABILITY ADDED STABILITY BOUNDARY-LESS OPERATION BOUNDARY-LESS OPERATION HUB AND SPOKE ARRANGEMENT HUB AND SPOKE ARRANGEMENT GENERATORS HAVE READY EVACUATION PATH GENERATORS HAVE READY EVACUATION PATH THE NATIONAL GRID ENVISAGED BY POWERGRID IS A HYBRID NETWORK COMPRISING A 765 Kv HUB WITH 400 KV AC AND 500KV HVDC SPOKES

KV RING MAIN SYSTEM THE POWER ‘HIGHWAY’

14 THE POWER ‘HIGHWAY’ CHEAP HYDRO POWER ENTERS THE ‘HIGHWAY’ FROM THE NORTH-EAST AND EXITS TO POWER STARVED REGIONS CHEAP PIT HEAD POWER ENTERS THE ‘HIGHWAY’ FROM THE EAST AND EXITS TO POWER STARVED REGIONS AN IPP/CPP CAN USE THE HIGHWAY TO TRANSFER /TRADE POWER THE POSSIBILITIES ARE IMMENSE

15 ENERGY RESOURCES COAL – RESERVES OF 202 BILLION TONNE COAL – RESERVES OF 202 BILLION TONNE EASTERN REGION 69% EASTERN REGION 69% WESTERN REGION 23% WESTERN REGION 23% SOUTHERN REGION 6% SOUTHERN REGION 6% LIGNITE RESERVES BILLION TONNE LIGNITE RESERVES BILLION TONNE SOUTHERN REGION 89% SOUTHERN REGION 89% NORTHERN REGION 6% NORTHERN REGION 6% WESTERN REGION 4% WESTERN REGION 4% HYDRO RESERVES – MW – 60% LOAD FACTOR HYDRO RESERVES – MW – 60% LOAD FACTOR NORTHERN REGION37.5% NORTHERN REGION37.5% WESTERN REGION5.2% WESTERN REGION5.2% SOUTHERN REGION10.3% SOUTHERN REGION10.3% EASTERN REGION7.1% EASTERN REGION7.1% NORTH-EASTERN REGION 39.9% NORTH-EASTERN REGION 39.9%

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17 NATIONAL GRID PLAN  National Grid planned for execution in phases with an investment of Rs. 70,000 Crs by  8500 MW existing capacity  MW planned by 2007  30,000 MW planned by 2012

18 Plan for National Grid- Phase-1 INTERCONNECTION OF REGIONAL GRIDS THROUGH HVDC BACK-TO-BACK LINKS INTERCONNECTION OF REGIONAL GRIDS THROUGH HVDC BACK-TO-BACK LINKS NORTH – WEST: 500MW VINDHYACHAL B2B LINK NORTH – WEST: 500MW VINDHYACHAL B2B LINK WEST – SOUTH: 1000MW CHANDRAPUR B2B LINK WEST – SOUTH: 1000MW CHANDRAPUR B2B LINK EAST – SOUTH: 500MW GAZUWAKA B2B LINK EAST – SOUTH: 500MW GAZUWAKA B2B LINK EAST – NORTH: 500MW SASARAM B2B LINK EAST – NORTH: 500MW SASARAM B2B LINK PHASE-I COMPLETED PHASE-I COMPLETED

19 Plan for National Grid- Phase-2 PHASE-II (BY 2007): HIGH CAPACITY “TRANSMISSION HIGHWAYS” ENVISAGED ALONG WITH MAJOR GENERATION PROJECTS HIGH CAPACITY “TRANSMISSION HIGHWAYS” ENVISAGED ALONG WITH MAJOR GENERATION PROJECTS HYBRID HVAC AND HVDC INTERCONNECTION HYBRID HVAC AND HVDC INTERCONNECTION INTER REGIONAL LINKS ALREADY CONSTRUCTED INTER REGIONAL LINKS ALREADY CONSTRUCTED KATHALGURI – MALDA 400KV D/C IN NER KATHALGURI – MALDA 400KV D/C IN NER 2000 MW HVDC BIPOLE BETWEEN TALCHER-KOLAR BET. ER & SR 2000 MW HVDC BIPOLE BETWEEN TALCHER-KOLAR BET. ER & SR 400KV AC LINK BETWEEN ROURKELA AND RAIPUR BET. ER & WR 400KV AC LINK BETWEEN ROURKELA AND RAIPUR BET. ER & WR IMPLEMENTATION ALREADY COMMENCED IMPLEMENTATION ALREADY COMMENCED HIGH CAPACITY 400 KV LINK FROM TALA TO DELHI BET. ER & NR HIGH CAPACITY 400 KV LINK FROM TALA TO DELHI BET. ER & NR 2 ND GAZUWAKA HVDC BACK-TO-BACK OF 500MW BET ER & SR 2 ND GAZUWAKA HVDC BACK-TO-BACK OF 500MW BET ER & SR ABOUT 5000 CKT. KM OF 765 KV LINES PLANNED ALONGWITH UPCOMING MEGA PROJECTS IN ER ABOUT 5000 CKT. KM OF 765 KV LINES PLANNED ALONGWITH UPCOMING MEGA PROJECTS IN ER WITH THE COMPLETION OF PHASE-II, THE INTER-REGIONAL CAPACITY WOULD BE 23,000 MW WITH THE COMPLETION OF PHASE-II, THE INTER-REGIONAL CAPACITY WOULD BE 23,000 MW

20 SYNCHRONOUS AC TIES MW HVDC CONNECTIONS 5000 MW NR NER WR ER 1055 MW 1000 MW 4050 MW 3000 MW 1700 MW AC DC AC DC AC DC AC DC AC 500 MW 1000 MW 300 MW 200 MW SR INTER-REGIONAL TRANSFER BY END OF 10 th PLAN (2007) MAJOR SYSTEM

21 TALCHER KOLAR NATIONAL GRID REGION WISE INTERCONNECTS AS ON DATE RAIPUR ROURKELA

22 Plan for National Grid- Phase-3 PHASE-III (BY 2012) : RING OF 765KV LINES INTER-CONNECTING NORTHERN, WESTERN AND EASTERN REGIONS RING OF 765KV LINES INTER-CONNECTING NORTHERN, WESTERN AND EASTERN REGIONS ER INTER-CONNECTION WITH SR TO BE STRENGTHENED THROUGH HVDC LINES (ASYNCHRONOUS LINK) ER INTER-CONNECTION WITH SR TO BE STRENGTHENED THROUGH HVDC LINES (ASYNCHRONOUS LINK) COMPLETION OF PHASE-III WOULD LEAD TO CUMULATIVE CAPACITY OF INTER-REGIONAL LINK TO 30,000 MW COMPLETION OF PHASE-III WOULD LEAD TO CUMULATIVE CAPACITY OF INTER-REGIONAL LINK TO 30,000 MW AGRASIPAT UNNAOSEONI VARANASIBINA BIHAR SHARIFFNAGDA KARANPURA AGRA

23 INTER-REGIONAL TRANSFER BY END OF 11 th PLAN (2012) NR NER WR ER MW 1000 MW 6450 MW 4600 MW 1300 MW 3200 MW SR

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25 MERIT ORDER – IMPACT ON TRANSMISSION PLANNING WITHIN THE REGION WITHIN THE REGION SKEWED DRAWAL PATTERN SKEWED DRAWAL PATTERN SKEWED DRAWAL PATTERN SKEWED DRAWAL PATTERN MERIT ORDER DISPATCH MERIT ORDER DISPATCH MERIT ORDER DISPATCH MERIT ORDER DISPATCH HYDRO CONSERVATION HYDRO CONSERVATION WITH OTHER REGIONS WITH OTHER REGIONS COSTLIEST GENERATORS ARE IN SR COSTLIEST GENERATORS ARE IN SR COSTLIEST GENERATORS ARE IN SR COSTLIEST GENERATORS ARE IN SR ER HAS THE PITHEAD- CHEAP-GENERATORS ER HAS THE PITHEAD- CHEAP-GENERATORS ABOUT 3900 MU OF ER POWER WAS SENT TO SR ON TALCHER-KOLAR LINE EVEN BEFORE TALCHER UNITS WERE SYNCHRONISED!!

26 PROJECTS IN THE PIPELINE IN SOUTHERN REGION

27 PROJECTS IN PROGRESS IN SOUTHERN REGION 400 KV MADURAI-TRIVANDRUM LINE WITH 400 KV SS AT TRIVANDRUM 400 KV MADURAI-TRIVANDRUM LINE WITH 400 KV SS AT TRIVANDRUM 400 KV NELAMANGALA-MYSORE LINE WITH 400 KV SUBSTATION AT MYSORE 400 KV NELAMANGALA-MYSORE LINE WITH 400 KV SUBSTATION AT MYSORE 400 KV KAIGA-NARENDRA LINE ALONG WITH 400 KV SUB STATION AT NARENDRA 400 KV KAIGA-NARENDRA LINE ALONG WITH 400 KV SUB STATION AT NARENDRA 400 KV HYDERABAD-KURNOOL-GOOTY LINE 400 KV HYDERABAD-KURNOOL-GOOTY LINE 400 KV 2 nd GOOTY-BANGALORE LINE 400 KV 2 nd GOOTY-BANGALORE LINE 400 KV RAICHUR-GOOTY D/C QUAD LINE 400 KV RAICHUR-GOOTY D/C QUAD LINE 400 KV RING MAIN AROUND BANGALORE 400 KV RING MAIN AROUND BANGALORE 400 KV RING MAIN AROUND BANGALORE 400 KV RING MAIN AROUND BANGALORE 400 KV RING MAIN AROUND CHENNAI 400 KV RING MAIN AROUND CHENNAI 400 KV RING MAIN AROUND CHENNAI 400 KV RING MAIN AROUND CHENNAI

28 PROJECTS IN SOUTHERN REGION 400 KV RAMAGUNDAM – HYDERABAD-GOOTY- NELAMANGALA LINE: RS 390 CRORES 400 KV RAMAGUNDAM – HYDERABAD-GOOTY- NELAMANGALA LINE: RS 390 CRORES ADDITIONAL 500 MW HVDC POLE AT GAZUWAKA: WORTH Rs 770 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 FOR UTILISATION DURING EMERGENCY ONLY): Rs 90 CRORES ENHANCEMENT OF CAPACITY OF TALCHER POLES BY 500MW (FROM 2000 MW TO 2500 MW FOR UTILISATION DURING EMERGENCY ONLY): Rs 90 CRORES SYSTEM AUGMENTATION SCHEMES : Rs 415 CRORES SYSTEM AUGMENTATION SCHEMES : Rs 415 CRORES KOODANKULAM NUCLEAR PLANT EVACUATION SCHEME – 2000 MW CAPACITY- WORTH ABOUT Rs 1700 CRORES KOODANKULAM NUCLEAR PLANT EVACUATION SCHEME – 2000 MW CAPACITY- WORTH ABOUT Rs 1700 CRORES ANOTHER HVDC LINK TO SR FROM ER/WR ANOTHER HVDC LINK TO SR FROM ER/WR SYSTEM EXPANSION SCHEMES WORTH Rs 1233 CRORES SYSTEM EXPANSION SCHEMES WORTH Rs 1233 CRORES

29 NEW PROJECTS ON THE ANVIL KAIGA 3 & 4 TRANSMISSION SYSTEM LINES : 413 Kms  MYSORE-KOZHIKODE D/C LINE  LILO OF KOLAR-SRIPERUMBADUR AT MELAKOTTAIYUR (40KM) AT MELAKOTTAIYUR (40KM)  NARENDRA-DAVANGERE D/C LINE SUB-STATION : 2 Nos. New  NEW 400/220KV SUBSTATION AT KOZHIKODE & MELAKOTTAIYUR KOZHIKODE & MELAKOTTAIYUR  2 ND 315MVA TRANSFORMER AT HIRIYUR S/S. HIRIYUR S/S.  BAY EXTENSION AT NARENDRA, DAVANGERE (KPTCL) & HIRIYUR. HIRIYUR. COST ESTIMATE : 512 CRORES KERALAKERALA

30 NEW PROJECTS ON THE ANVIL KUDANKULAM TRANSMISSION SYSTEM( 2000MW) LINES : = 950 Km. ESTIMATED COST = 1710 CRORES  KUDANKULAM-TIRUNELVELI 2 X 400 KV D/C LINES WITH 2 X 400 KV D/C LINES WITH QUAD (108 & 83 Km.) QUAD (108 & 83 Km.)  TIRUNELVELI-UDUMALPET D/C LINE WITH TWIN D/C LINE WITH TWIN MOOSE (300Km) MOOSE (300Km)  LILO OF BOTH CIRCUITS OF MADURAI-TRIVANDRUM LINE MADURAI-TRIVANDRUM LINE AT TIRUNELVELI ( 2 X 55 Km) AT TIRUNELVELI ( 2 X 55 Km)  EDAMON-MUVATTUPUZHA D/C LINE QUAD (150Km) D/C LINE QUAD (150Km)  TIRUNELVELI-EDAMON 400KV D/C LINE (110Km).  MUVATTUPUZHA-TRICHUR 400KV D/C LINE WITH QUAD CONDUCTORS (90Km) CONDUCTORS (90Km) T N KARNATAKA KERALA

31 NEW PROJECTS ON THE ANVIL KUDANKULAM TRANSMISSION SYSTEM( 2000MW) SUB-STATIONS  NEW 400/220KV SUBSTATIONS AT TIRUNELVELI, MUVATTUPUZHA MUVATTUPUZHA  AUGMENTATION OF TRANSFORMATION CAPACITY BY ONE TRANSFORMER EACH AT UDUMALPET & TRIVANDRUM S/S TRANSFORMER EACH AT UDUMALPET & TRIVANDRUM S/S SUPPLEMENTARY TRANSMISSION SYSTEM  LILO OF ONE CIRCUIT OF 400KV MADURAI-TRICHY AT KARAIKUDI ( 60 Km) ALONG WITH SUBSTATION AT AT KARAIKUDI ( 60 Km) ALONG WITH SUBSTATION AT KARAIKUDI (TAMILNADU) KARAIKUDI (TAMILNADU)  LILO OF ONE CIRCUIT OF TALAGUPPA-NELAMANGALA 400KV LINE AT HASSAN ( 80 KM) ALONG WITH SUBSTATION AT 400KV LINE AT HASSAN ( 80 KM) ALONG WITH SUBSTATION AT HASSAN.(KARNATAKA) HASSAN.(KARNATAKA)

32 NEW PROJECTS ON THE ANVIL NLC-TS-II EXPANSION TRANSMISSION SYSTEM LINES : 467 Km.  2 NOS. 400KV S/C LINES FROM NEYVELI-TS-II (EXISTING) NEYVELI-TS-II (EXISTING) TO NLC TS-II (EXPAN) (8 KM). TO NLC TS-II (EXPAN) (8 KM).  NEYVELI-PUGALUR D/C LINE  PUGALUR-MADURAI D/C LINE  UDUMALPET-ARASUR D/C LINE  LILO OF NEYVELI-SRIPERUMBU- DUR LINE AT PONDY. DUR LINE AT PONDY. SUB-STATION  NEW 400/220KV SUBSTATIONS AT PUGALUR, ARASUR & PONDICHERRY. PONDICHERRY. COST ESTIMATE : 721 CRORES T N KERALAKERALA KARNATAKA

33 GRID OPERATION IN THE SOUTHERN REGION

34 THE SOUTHERN REGION IN BRIEF

35 INSTALLED CAPACITY OF SOUTHERN REGION IN MW 31,316 MW HYDRO THERMAL WIND IPP NUCLEAR GAS MICRO AND CAPTIVE CAPACITIES ARE NOT INCLUDED IN THE INSTALLED CAPACITY

36 SOUTHERN REGION:QUICK FACTS INSTALLED CAPACITY:31,316 MW MAX DEMAND MET:21,928 MW MAX CONSUMPTION: 457 MU KARNATAKA MAX DEMAND MET 5445 MW INSTALLED CAPACITY 5802 MW DAILY CONSUMPTION AVG 84 MU ANDHRAPRADESH MAX DEMAND MET 7441 MW 9515 MW INSTALLED CAPACITY DAILY CONSUMPTION AVG 130 MU TAMILNADU MAX DEMAND MET 7228 MW 7037 MW INSTALLED CAPACITY DAILY CONSUMPTION AVG 126 MU KERALA MAX DEMAND MET 2426 MW 2610 MW INSTALLED CAPACITY DAILY CONSUMPTION AVG 34 MU DAILY CONSUMPTION MAX 107 MU DAILY CONSUMPTION MAX 166 MU DAILY CONSUMPTION MAX 39 MU DAILY CONSUMPTION MAX 147 MU

37 GENERATING UNITS AND CAPACITY UNIT CAPACITYAPKARKERTNCGSTOTAL THERMAL(500 MW) 268 THERMAL ( MW) GAS/THER( MW) HYDRO(>50 MW) TOTAL

MW TRANSFER CAPABILITY ON HVDC.ANOTHER 500 MW POLE TO BE ADDED AT GZK. TALCHER POLE CAPABILITY TO BE ENHANCED TO 2500 MW GRID MAP 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

39 TRANSMISSION IN SOUTHERN INDIA VOLTAGE LEVELAPKARKERTNCGS TOTAL 400 KV /230 KV /110 KV TOTAL ABOUT 2800 CKM OF 400 KV LINES ADDED IN THE PAST 2 YEARS

40 LINK TO FOLDER 3D DEMAND, LOAD CURVES HOURLY AVERAGE DEMAND ETC

41 GRID OPERATION IN THE SOUTHERN REGION

42 THE GRID INTERCONNECTED SYSTEMS WITH THOUSANDS OF KILOMETERS OF LINES AND HUNDREDS OF GENERATORS OPERATING WITH SPLIT SECOND SYNCHRONISM IS THE GREATEST SCIENTIFIC ACHIEVEMENT OF THE MILLENIUM INTERCONNECTED SYSTEMS WITH THOUSANDS OF KILOMETERS OF LINES AND HUNDREDS OF GENERATORS OPERATING WITH SPLIT SECOND SYNCHRONISM IS THE GREATEST SCIENTIFIC ACHIEVEMENT OF THE MILLENIUM THE LARGEST SINGLE MACHINE EVER CREATED THE LARGEST SINGLE MACHINE EVER CREATED

43 INTERCONNECTED SYSTEM A quarter century ago, Dr. R. Buckminister Fuller proposed interconnecting regional Power System into a single, continuous worldwide Electric Energy Grid as a number one solution to solve many of the world's pressing problems. While he envisioned creating economical Power Systems, Fuller also saw power grid as the way to reduce human suffering, preserve the environment and make war obsolete. Expanding power grid has proved to be both economically and environmentally desirable since the time zone and seasonal diversity that exist between adjacent Power Systems can postpone or eliminate the necessity of building redundant generation.

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45 GRID OPERATION: A TIGHT ROPE WALK BLACK-OUT VOLTAGE COLLAPSE IN-ECONOMIC OPERATION INSTABILITY POWER SWINGS INCREASED LOSSES

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

47 LANDMARK EVENTS ADDITION OF GENERATING CAPACITY ADDITION OF GENERATING CAPACITY TALCHER-KOLAR AND ASSOCIATED SYSTEM TALCHER-KOLAR AND ASSOCIATED SYSTEM UNIFIED LOAD DESPATCH SCHEME UNIFIED LOAD DESPATCH SCHEME TRANSMISSION SYSTEM AUGMENTATION TRANSMISSION SYSTEM AUGMENTATION AVAILABILITY BASED TARIFF AVAILABILITY BASED TARIFF

48 IMPROVEMENTS IN GRID OPERATION POWER SYSTEM PARAMETERS POWER SYSTEM PARAMETERS FREQUENCY IMPROVED FREQUENCY IMPROVED FREQUENCY IMPROVED FREQUENCY IMPROVED VOLTAGES STABLE ACROSS THE GRID VOLTAGES STABLE ACROSS THE GRID VOLTAGES STABLE ACROSS THE GRID VOLTAGES STABLE ACROSS THE GRID OPTIMAL OPERATION OPTIMAL OPERATION LOSSES REDUCED BY % THROUGHOUT THE GRID LOSSES REDUCED BY % THROUGHOUT THE GRID LOSSES REDUCED BY % THROUGHOUT THE GRID LOSSES REDUCED BY % THROUGHOUT THE GRID SAVINGS OF ABOUT Rs 450 CRORES EVERY YEAR! SAVINGS OF ABOUT Rs 450 CRORES EVERY YEAR! MERIT ORDER OPERATION :- OPTIMISATION MERIT ORDER OPERATION :- OPTIMISATION MERIT ORDER OPERATION :- OPTIMISATION MERIT ORDER OPERATION :- OPTIMISATION HYDRO CONSERVATION HYDRO CONSERVATION HYDRO CONSERVATION HYDRO CONSERVATION HEALTHY RESERVOIR LEVELS HEALTHY RESERVOIR LEVELS USE HYDRO GENERATION FOR PEAKING AND RESERVE USE HYDRO GENERATION FOR PEAKING AND RESERVE PUMP MODE OPERATION AT KADAMPARAI PUMP MODE OPERATION AT KADAMPARAI PUMP MODE OPERATION AT KADAMPARAI PUMP MODE OPERATION AT KADAMPARAI TALCHER – KOLAR LINK TALCHER – KOLAR LINK INTER REGIONAL POWER : MUs/1600MW MAX INTER REGIONAL POWER : MUs/1600MW MAX UTILISATION OF COMMERCIAL MECHANISM UTILISATION OF COMMERCIAL MECHANISM TURNOVER OF 5143 MU ON UI WORTH MORE THAN 900 CRORES TURNOVER OF 5143 MU ON UI WORTH MORE THAN 900 CRORES COSTLY GENERATION REDUCED. COSTLY GENERATION REDUCED.

49 WHAT THE GRID EXPECTS FROM THE GENERATOR PROVIDE PRIMARY RESPONSE PROVIDE PRIMARY RESPONSE PARTICIPATE IN REACTIVE POWER PARTICIPATE IN REACTIVE POWER MATCH RAMPS WITH GRID DEMAND MATCH RAMPS WITH GRID DEMAND FLEXIBILITY FLEXIBILITY BLACK START CAPABILITY BLACK START CAPABILITY GOOD CO-ORDINATION GOOD CO-ORDINATION FLOW OF INFORMATION FLOW OF INFORMATION ALL WHAT A SOCIETY EXPECTS FROM A CIVILISED CITIZEN ALL WHAT A SOCIETY EXPECTS FROM A CIVILISED CITIZEN

50 WHAT THE GENERATOR EXPECTS FROM THE GRID STABLE FREQUENCY STABLE FREQUENCY GOOD VOLTAGE PROFILE GOOD VOLTAGE PROFILE STRONG CONNECTIVITY STRONG CONNECTIVITY ROBUST MARKET ROBUST MARKET FLOW OF INFORMATION FLOW OF INFORMATION ALL WHAT A CIVILISED CITIZEN EXPECTS FROM A SOCIETY ALL WHAT A CIVILISED CITIZEN EXPECTS FROM A SOCIETY

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52 FREQUENCY PROFILE 2002, 2003 & 2004

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

54 WATER SUPPLY TO BANGALORE 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 PUMPING LOSSES REDUCED ENORMOUS SAVINGS TO THE STATE MOTOR BURNING AND MAINTENANCE COSTS ALSO CAME DOWN DRASTICALLY

56 DEMAND Vs FREQUENCY FOR 30-JULY-04 FREQ DEMAND

57

58

59 MERIT ORDER : UNITS BOXED UP POWER STATIONSTATE CAPACITY(MW) FUEL VARIABLE COST TATA DIESELKARNATAKA 79 DIESEL308 RAYALSEEMA DGPPKARNATAKA 27 DIESEL360 YELEHANKA DIESELKARNATAKA 128 DIESEL314 THANRBHAVIKARNATAKA 220 NAPTHA325 SUB-TOTAL 454 BRAHAMPURAM DPPKERALA 107 DIESEL275 BSESKERALA 157 NAPTHA308 KASARGODE PCLKERALA 22 NAPTHA298 KAYAMKULAMKERALA 360 NAPTHA322 SUB-TOTAL 646 BASIN BRIDGETAMIL NADU 120 NAPTHA584 P.P.NALLURTAMIL NADU 330 NAPTHA415 SUB-TOTAL 450 TOTAL 1550

60 OPTIMAL RESERVOIR UTILISATION LINGANAMAKKI IN KARNATAKA ENERGY STORAGE IN MU (THIS YEAR) :- 2473MILLION UNITS ENERGY STORAGE IN MU (LAST YEAR) :- 1689MILLION UNITS MORE THAN 400 MILLION UNITS OF ENERGY SAVED DUE TO IMPROVED OPERATIONAL EFFICIENCY AND OPTIMISATION THIS IS WORTH Rs 80 CRORES

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62 UI DETAILS

63APKARKERTNPONDY Total UI exported(-) / Imported(+) in MUs Total amount paid in Crores Rs Average rate of UI in paise/unit SUMMARY OF UI (FROM 01/JAN/03 TO 29/AUG/04)

64 INTER REGIONAL UI IN SR (FROM 01/01/03 TO 29/08/04) TOTAL UI TURNOVER : MU TOTAL UI TURNOVER : MU TOTAL UI AMOUNT DISBURSED:- 980 CR TOTAL UI AMOUNT DISBURSED:- 980 CR INTER REGIONAL UI: MU (-)191 MU INTER REGIONAL UI: MU (-)191 MU AVG WEEKLY TRANSACTION:- 59 MU AVG WEEKLY TRANSACTION:- 59 MU AVG WEEKLY UI AMT DISBURSED:- 11 CR AVG WEEKLY UI AMT DISBURSED:- 11 CR AVG RATE OF UI WITH WR IN PS/U AVG RATE OF UI WITH WR IN PS/U AVG RATE OF UI IMPORT FROM ER IN PS/U AVG RATE OF UI IMPORT FROM ER IN PS/U 144 ER 144 ER

65 INTER-REGIONAL EXCHANGES A/C DETAILS TILL 29/08/04 1.SR IMPORTED 334 MU AND EXPORTED 181 MU TO WR. 2.AMOUNT ACCRUED IN SREB – IRE DUE TO DIFF. IN WR A/C = 38.2Crs 3.AMOUNT ACCRUED IN WREB – IRE DUE TO DIFF. IN SR A/C = 23.3Crs 4.AMOUNT DUE TO SR CONSTITUENTS ON 50:50 BASIS = 30.75Crs % DISBURSEMENT

66 BANGALORE 400 KV RING MAIN(INTERIM) 400 KV RING MAIN SOMANAHALLI NELAMANGALA KOLAR HOODY FROM GOOTY

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

68 MELKOTTAIYUR SRIPERUMBUDUR ALMATHI TO KOLAR TO NELLORE CHENNAI RING MAIN TO CHITOOR

69 SKEWED DRAWAL AUG-04 STATEAVG DRAWAL MAX DRAWAL AUG 04 TILL NOW ENTITLEMENT WITH TAL 1500MW 2000MW MIN DRAWAL AUG 04 TILL NOW AP KAR KER TN PONDY APR-04 MAR-04 FEB-04 AUG-04 OCT-03 DEC-03 AUG-04

71 MERIT ORDER : UNITS BOXED UP POWER STATIONSTATE CAPACITY(MW) FUEL VARIABLE COST TATA DIESELKARNATAKA 79 DIESEL308 RAYALSEEMA DGPPKARNATAKA 27 DIESEL360 YELEHANKA DIESELKARNATAKA 128 DIESEL314 THANRBHAVIKARNATAKA 220 NAPTHA325 SUB-TOTAL 454 BRAHAMPURAM DPPKERALA 107 DIESEL275 BSESKERALA 157 NAPTHA308 KASARGODE PCLKERALA 22 NAPTHA298 KAYAMKULAMKERALA 360 NAPTHA322 SUB-TOTAL 646 BASIN BRIDGETAMIL NADU 120 NAPTHA584 P.P.NALLURTAMIL NADU 330 NAPTHA415 SUB-TOTAL 450 TOTAL 1550

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