POWER GRID CORPORATION OF INDIA LTD. SRLDC, BANGALORE PRESENTATION By L.K.Kanungo SOUTHERN REGIONAL GRID ON U.K.Verma &

LINKS ANDHRA PRADESH KARNATAKA KERALATAMIL NADU SR GRID HIGHLIGHTS SR INSTALLED CAPACITY STATEWISE BREAKUP OF I/C TYPICAL CITY LOADS GROWTH OF I/C & PEAK DEMAND IMPORT THROUGH HVDC INTER-REGIONAL IMPORTS FREQ SPECTRUM U/F RELAY VOLTAGE SPECTRUM SR GRID MAP 3D FREQUENCY JULY-02 EXPECTED T/L EXPECTED GENERATION INTER-STATE TIE LINES SHARE ALLOCATION TALCHER CGS GEN COST SPARE PROBLEMSSOLUTIONSRESERVOIR POSITION Hierarchy of ULDC Communication Challel Control Centres ULDC PROJECT 3D DEMAND JULY-02 INTER-REGIONAL LINKS

ANDHRA PRADESH QUICK FACTS GRID HIGHLIGHTS INSTALLED CAPACITY CONSUMER PROFILE PROBLEMS GZK EVACUATION VTS & LANCO EVACUATION KTS EVACUATION TWIN CITY RING MAIN HYDRO THERMAL N’SAGAR & SRISAILAM RESERVOIR JALAPUT RESERVOIR EXPECTED GEN. ADDITIONS EXPECTED TRANS. ADDITIONS COST OF GENERATORS NATURAL ADVANTAGES POWER REFORMS 3D DEMAND JULY-02 REACTIVE POWER MANAGEMENT

KARNATAKA QUICK FACTS GRID HIGHLIGHTS INSTALLED CAPACITY CONSUMER PROFILE PROBLEMS RTPS EVACUATION KAPS & NJPH EVACUATION PRESENT NELAMANGALA FINAL NELAMANGALA PRESENT SHARAVATHY FINAL SHARAVATHY RIVERS AND RESERVOIRS 220KV T/L EXPECTED EXPECTED GEN. ADDITIONS 400KV T/L 3D DEMAND JULY-02 VARIABLE COSTS

KERALA QUICK FACTS GRID HIGHLIGHTS INSTALLED CAPACITY CONSUMER PROFILE PROBLEMS WIND MILL POTENTIAL GENERATION SCHEME GROWTH OF PER CAPITA INCOME INFLOWS OF IDDUKI & KAKKI BREAKUP OF ENERGY CONSUMED GROWTH OF I/C Vs DEMAND GROWTH OF GEN & CONSUMPTION POWER MAP EXPECTED GEN. ADDITIONS 3D DEMAND JULY-02 VARIABLE COSTS

TAMIL NADU QUICK FACTS GRID HIGHLIGHTS INSTALLED CAPACITY CONSUMER PROFILE PROBLEMS PROXIMICITY OF GENERATING STN. LOAD CENTRES TYPICAL LOADS IN MAIN CITIES LIST OF HYDRO STATIONS PUMP STORAGE WIND ENERGY CHENNAI SUPPLY TOTAL INFLOWS EXPECTED GEN. ADDITIONS EXPECTED TRANS. ADDITIONS 3D DEMAND JULY-02 VARIABLE COSTS

SOUTHERN REGIONAL GRID ▀ Comprises four States and Union Territory of Pondicherry 1.ANDHRA PRADESH 2.KARNATAKA 3.KERALA 4.TAMIL NADU 5.Union Territory of Pondicherry ▀ Centre Generating Stations in the Region are Ramagundam Super Thermal Power Stn. : 2,100 MW (200x x3) Neyveli Lignite Corporation Ltd. - II : 1,470 MW (210 x 7) Madras Atomic Power Station : 340 MW (170 x 2) Kaiga Generating Station : 440 MW (220 x 2)

SR GRID MAP KHAMMAM VIJAYAWADA NAGARJUNASAGAR VISAKHAPATNAM (POWERGRID) HYDERABAD RAICHUR GOOTY HOODY SALEM UDUMALPET TRICHUR MADURAI TRICHY MADRAS NEYVELI CUDDAPAH DAVANAGERE KAIGA RSTPP BHADRAVATI 130x2 164x x2 PONDICHERY BANGALORE SIRSI MUNIRABAD P P P P P P P P P P P P P P P N KOLAR PALLOM KAYANKULAM EDAMON TALCHER JEYPORE x78 2x HOSUR KADRA KODASAALY Nagjhari MAPS P SSLMM MMDP THIRUVANATHAPURAM ALMATHI NELLORE 400 KV LINE PRESENTLY OPERATED AT 220 KV NELAMANGALA KURNOOL GAZUWAKA(AP) SIMHADRI NTPC HIRIYUR x x2 221x2 146x2 52x2 197x2 301x2 8x4 15x

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

INSTALLED CAPACITY OF SOUTHERN REGION AS ON IN MW 26347MW

STATE/CGSHYDROTHERMALGASWINDIPPNUCLEARTOTAL ANDHRA PRADESH KARNATAKA KERALA TAMIL NADU NTPC 2100 NLC TS II 1470 MAPS 340 KAIGA 440 TOTAL IN % 38%46%3%0.1%10%3% INSTALLED CAPACITY OF SR IN MW AS ON 31 st July 02

STATEWISE BRAKUP OF INSTALLED CAPACITY IN SR AS ON IN MW 26347MW AP KAR KER TN CGS

Installed Capacity-26,347 MW Average Daily Consumption- 359 MU Average Grid Frequency HZ Peak Demand Met-20,063 MW Demand Deficit- 17 % Energy Deficit- 11 % SOUTHERN REGIONAL GRID HIGHLIGHTS

TYPICAL LOADS OF MAJOR CITIES (MW) CITYLOAD BANGALORE MW HYDERABAD- SECUNDERABAD MW CHENNAI MW THIRUVANANTHAPURAM225 MW

Growth of Installed Capacity & Peak Demand Met Average Rate of Growth of Installed Capacity (MW): 4.5 % Average Rate of Growth of Peak Demand met (MW): 5.6 %

IMPORT THROUGH HVDC 77 Crores 298 Crores 430 Crores 578 Crores 236 Crores 846 Crores

INTER-REGIONAL EXCHANGES: FROM ER FROM WR FROM MSEB 1080 FROM GRIDCO (Orissa) FROM CSEB 016 TOTAL IN MUs

FREQUENCY SPECTRUM FOR LAST FOUR YEARS

Frequency Profile: Last 4 years

AUTOMATIC UNDER FREQUENCY LOAD SHEDDING SCHEME As per 129 th SRE Board meeting, under frequency relays are to be set to operate in 3 stages at 48.0Hz, 47.8Hz & 47.7Hz instantaneous. Present Status of relief through U/F relays: S. NoState47.8Hz Inst. 47.7Hz Inst. 47.6Hz Inst.47.5Hz Inst. 1AP KAR KER Offpeak-peak Offpeak-peak 4TN TOTAL

VOLTAGE SPECTRUM FOR

PROBLEMS LOW GRID FREQUENCY LOW GRID FREQUENCY LOW VOLTAGES LOW VOLTAGES HEAVY MVAR DRAWALS HEAVY MVAR DRAWALS CAPACITOR INSTALLATION-BACKLOG CAPACITOR INSTALLATION-BACKLOG MEAGRE RELIEF FROM AUFR’S MEAGRE RELIEF FROM AUFR’S RELUCTANCE - MANUAL LOAD SHEDDING RELUCTANCE - MANUAL LOAD SHEDDING TRANSMISSION CONSTRAINTS TRANSMISSION CONSTRAINTS PROTECTION CO-ORDINATION PROTECTION CO-ORDINATION GRID GRID DEFENCELESS DEFENCELESS VULNERABLE VULNERABLE

SOLUTION MAINTAIN FREQ BETWEEN HZ MAINTAIN FREQ BETWEEN HZ ACCELERATE SHUNT CAPACITOR INSTALLATION ACCELERATE SHUNT CAPACITOR INSTALLATION REINSTATE 2 STAGE UFR’S REINSTATE 2 STAGE UFR’S PROTECTION CO-ORDINATION PROTECTION CO-ORDINATION AUGMENTATION OF TRANSMISSION AUGMENTATION OF TRANSMISSION SCIENTIFIC SETTLEMENT SYSTEM-ABT SCIENTIFIC SETTLEMENT SYSTEM-ABT FREE GOVERNOR MODE FREE GOVERNOR MODE SELF HEALING MECHANISM SELF HEALING MECHANISM CONJUNCTION CONJUNCTION

RLDC,Bangalore KalamasseryHyderabad Bangalore Chennai Cuddapah Warangal Vijayawada Kalam’erry Kannur Trivandrum Chennai Erode Madurai Bangalore Davangere Hubli CPCC SCC, Pondy Hyderabad Hierarchy of The ULDC Scheme in Southern Region Andhra KeralaTamilnaduKarnataka

Communication Channel for Information flow Sub-LDC SLDC RLDC SLDC Sub-LDC RTU Wide Band / PLCC Commn Wide Band Commn Wide Band Commn (MW / FO) RTU

Andhra Pradesh Karnataka Kerala Tamilnadu UT of Pondy Vijayawada Warangal HYDERABAD Ghanapur Chinkampalli CHENNAI Pondy Madurai Kannur-B KALAMASSERY Vydyuthi Bhavanam Erode MW Link FO Link State owneed Link Sub-LDC SLDC RCLDC Hubli Davangeree Bangalore Information Flow to Control Centres Satellite Ramagundam

RAMAGUNDAM SOUTHERN REGION OVERALL TELECOM BACKBONE NETWORK CENTRAL SECTOR RTUs 27(NEW) SALEM400 UDUMALPET TRICHUR NORTH MADURAI TRICHY SRIPERUMBUDUR NEYVELI DAVANAGERE PONDY SOMANAHALLI P N PALLOM KAYANKULAM VIJAYAWADA TALLAPALLI GAJUWAKA HYDERABAD GOOTY CHINAKAMPALLY WARANGAL PEDAPALLI DURSHED JAMMIKUNTA VTPS VIZAG SWS KAKINADA BOMMUR BHIMADOLE N’SAGAR PH SRISAILAM PH SRISAILAM LBPH KURNOOL SOMAYAJULAPALLI MUDDANOOR RTPP ANANTHAPUR SHAPURNAGAR GHANAPUR CH.GUTTA HYDERABAD 400 CHALAKUDI KALAMASSERY VIAKKAM KUNDARA PARIPALLI TRIVANDRUM NORTH VYDYUTHI BHAVANAM KOZHIKODE KANNUR - B MADURAI400 CHENNAI CHIDAMBARAM MYLADUTURAI SALEM230 ERODE SIVAGANGA KARAIKUDI THIRUMAYAM PUDUKOTTAI THIRUVARUR TANJORE KOVILVENNI ADANIKOTTAI INGUR PONGALORE PANRUTI VILLIANUR SP.KOVIL BANGALORE KUMBALGODI HUBLI APTRANSCO RTUs 82(NEW) TNEB RTUs 40 (NEW) 35 (EXST) KSEB RTU’S 30(NEW) KPTCL RTUs 22 (NEW) 21 (EXST) PONDY RTUs 5 (NEW) 10 (EXST) RSCC (1) CPCC (1) SLDC (4) SUB-LDC / SCC (14) FIBRE OPTIC LINK 110/132kv FIBRE OPTIC LINK (220kv) FIBRE OPTIC LINK (400kv) FIBRE OPTIC LINK (SEB) MICROWAVE LINK (39 links) SATELLITE LINK (KEB) RTU LOCATIONS (201)

REACTIVE POWER MANAGEMENT 1.TAP POSITION OF 400KV ICTs AT GAZUWAKA, VIJAYAWADA, KHAMMAM & HYDERABAD CHANGED. 2.MVAR INJECTION(220KV TO 400KV) THROUGH ICT AT GAZUWAKA BUS REVERSED. 3.MVAR EXPORT(400KV TO 220KV) THROUGH ICT AT VIJAYAWADA, KHAMMAM & HYDERABAD INCREASED. 4.APTRANSCO REPORTED IMPROVEMENT IN 220KV VOLTAGE PROFILE & REDUCTION IN LOSS BY 1%(APPROX.)

DateTAP POSITION CHANGED Stations 11-July12-July26-July29-July Gazuwaka 9 to 1212 to 14 Vijayawada 11 to 1414 to 16 Khammam 8 to 11 Ghanapur 5,4,3 to 7,6,5 7,6,5 to 9,8,7 REACTIVE POWER MANAGEMENT DATE GazuwakaVijayawadaKhammamGhanapur MvarhMvarMvarhMvarMvarhMvarMvarhMvar 08-Jul Jul Jul Jul Jul Jul Jul TOTAL

VARIABLE COST OF SOME POWER STATION OF CENTRAL SECTOR POWER STATION/UNIT VARIABLE COST (Ps) KAIGA GEN. STATION310 (Total Cost) NEYVELI-II STG-II176 NEYVELI-II STG 1122 RAMAGUNDAM T.P.S91 M.A.P.S KALPAKAM57

CENTRAL SECTOR GENERATION EXPECTED RAMAGUNDAM STAGE III 500 NEYVELI TS-I EXT.420 TOTAL THERMAL IN MW

POWERGRID TRANSMISSION LINES EXPECTED TALCHER-KOLAR HVDC (500KV) KV KOLAR-HOSUR D/C KV HOSUR-SALEM83 400KV SALEM-UDUMALPET KV KOLAR- SP'BUDUR KV VIJAYWADA-NELLORE-SP'BUDUR KV MADURAI TRIVANDRUM IN CKM

RESERVOIR POSITION NAME OF RESERVOIR AS ON 31 ST AUGUST 2001AS ON 25 TH AUGUST 2002 LEVEL (M) ENERGY INFLOW FOR THE YEAR (Jun’01- May’02) (MU) LEVEL (M) ENERGY INFLOW FOR THE YEAR (Jun’02- Aug’02) (MU) MU% % JALAPUT LINGANMAKKI SUPA IDUKKI KAKKI NILGIRIS

SHARE ALLOCATION BEFORE TALCHER(2000MW) IN MW STATE NTPC PEAK NTPC OFFPEAKNLY-II/INLY-II/IIMAPSKAPSER TOTAL PEAK TOTAL OFFPEAK AP KAR KER TN PONDY GOA 100 STATE NTPC PEAK NTPC OFFPEAKNLY-II/INLY-II/IIMAPSKAPSER Talcher- Kolar TOTAL PEAK TOTAL OFFPEAK AP KAR KER TN PONDY GOA 100 SHARE ALLOCATION AFTER TALCHER(2000MW) IN MW

220KV INTER STATE TIE-LINES IN SERVICE –Tandur (AP) – Sadem (Kar) -Radial load on AP. –Gooty (AP) – Alipur (Kar)-Radial load on AP. –Chittoor (AP) – Tiruvalam (TN)-Radial load on AP. –Sulurpet (AP) – Gummidipundi (TN)-Radial load on AP. –Theni (TN) – Muzhiyar (Ker)-Radial load on Ker. ADVANTAGES: -REDUCTION IN CONGESTION IN 400KV LINES -IMPROVEMENT IN VOLTAGE PROFILE -REDUCTION IN LOSSES -REDUCTION IN ANGULAR DIFFERENCE -BETTER STABILITY

KARNATAKA: QUICK FACTS TOTAL AREA SQ KMS TOTAL AREA SQ KMS NUMBER OF CONSUMERS105 LAKHS NUMBER OF CONSUMERS105 LAKHS CONNECTED LOAD14157 MW CONNECTED LOAD14157 MW 400 KV TL1456 CKM 400 KV TL1456 CKM 220 KV TL7433 CKM 220 KV TL7433 CKM 110 KV TL6058 CKM 110 KV TL6058 CKM 66 KV TL6196 CKM 66 KV TL6196 CKM 33 KV TL6543 CKM 33 KV TL6543 CKM TOTAL LENGTH OF HT LINES KMS TOTAL LENGTH OF HT LINES KMS

KARNATAKA GRID HIGHLIGHTS Installed Capacity(MW) Peak Demand Met(MW) Peak Demand Requirement(MW) % Demand Deficit 10%20% Total Energy Consumed(MU) Energy Requirement(MU) % Energy Deficit 11% Average Daily Consumption 7578

INSTALLED CAPACITY OF KARNATAKA AS ON IN MW 4828MW

INSTALLED CAPACITY OF KARNATAKA: IN MWIN PERCENTAGE HYDRO309764% THERMAL138829% WIND20.04% IPP3417% TOTAL4828 AS ON 31 st July 02

CONSUMER PROFILE IN KARNATAKA

PROBLEMS FACED IN OPERATION GENERATION DEPENDENT ON MONSOON GENERATION DEPENDENT ON MONSOON LOAD CENTRE IN SOUTH-GENERATION IN NORTH AND NORTH WEST KMS AWAY LOAD CENTRE IN SOUTH-GENERATION IN NORTH AND NORTH WEST KMS AWAY RTPS EVACUATION- O/L OF RTPS- LINGASUGUR LINES RTPS EVACUATION- O/L OF RTPS- LINGASUGUR LINES KAPS EVACUATION –O/L OF KODASALLI- NJPH LINES– SLOW SWING KAPS EVACUATION –O/L OF KODASALLI- NJPH LINES– SLOW SWING NJPH EVACUATION- O/L OF NJPH-HUBLI NJPH EVACUATION- O/L OF NJPH-HUBLI LOADING OF GUTTUR-HIRIYUR-GB’NUR- DBPURA-HOODY LOADING OF GUTTUR-HIRIYUR-GB’NUR- DBPURA-HOODY GRIDMAP 220 SHOW ME

PROBLEMS FACED IN OPERATION LOW VOLTAGES IN SOUTHERN PART OF THE STATE – INSUFFICIENT SHUNT COMPENSATION – OVERLOADED LINES LOW VOLTAGES IN SOUTHERN PART OF THE STATE – INSUFFICIENT SHUNT COMPENSATION – OVERLOADED LINES OVERLOADING OF SOMANAHALLI ICT’S: OVERLOADING OF SOMANAHALLI ICT’S: MAX MW POSSIBLE AT 330KV = 770MW MAX MW POSSIBLE AT 330KV = 770MW GRIDMAP 220

LOAD 2250 MW LOAD 500 MW LOAD 1250MW LOW VOLTAGE ZONE ~ 1260MW Raichur ~ 1,565MW Nagjhari, Kodasalli, Kaiga & Kadra ~ ~ ~ ~ ~ ~ ~ 1,330MW Sharavathy, LDPH & MGHE Varahi 230MW ~ Tanirbavi 235MW 96 % OF I/C IS IN THE CIRCLES SHOWN

EVACUATION OF RTPS BB WADI RTPS 630 MW LINGASUGUR ML PURA HUBLI GADAG LINGAPUR ITTAGI GUTTUR JINDAL 120 MW MUNIRABAD RAICHUR SHAHBAD HUMNABAD SEDAM TANDUR(AP) KUSHTAGI RTPS 630 MW

KAPS AND NJPH EVACUATION KADRA-150MW KAIGA 440 MW KODASALLI 120 MW PONDA XELDAM A-WADI TATA 81 MW CHIKKODI BELGAUM NARENDRA M.L.PURA GADAG TO LINGAPUR TO SHARAVATHY GOA NJPH 855 MW SIRSI: BUS1 DAVANGERE HAVERI SIRSI: BUS2 HUBLI

PRESENT CONFIGURATION AT NELAMANGALA SHIMOGA GUTTUR HOODY HOODY 220 KV PEENYA HEBBAL NELAMANGALA ANCHEPALYA B1 B2 B4 B3

PRESENT CONFIGURATION AT NELAMANGALA RELIEF OF MW ON HOODY ICT RELIEF OF MW ON HOODY ICT VOLTAGE AT HOODY IMPROVED: 7-9 KV VOLTAGE AT HOODY IMPROVED: 7-9 KV VOLTAGE AT S’HALLI IMPROVED: 5-7 KV VOLTAGE AT S’HALLI IMPROVED: 5-7 KV LOADING OF S’HALLI-SB’PURA AND S’HALLI-ITPL 220KV LINES RELIEVED. LOADING OF S’HALLI-SB’PURA AND S’HALLI-ITPL 220KV LINES RELIEVED. ONE MORE STEP TOWARDS ACHIEVING A 400 KV RING MAIN AROUND BANGALORE ONE MORE STEP TOWARDS ACHIEVING A 400 KV RING MAIN AROUND BANGALORE

FINAL CONFIGURATION AT NELAMANGALA SHIMOGA GUTTUR HOODY HOODY 220 KV PEENYA HEBBAL NELAMANGALA ANCHEPALYA TO HOODY

PRESENT CONFIGURATION AT SHARAVATHY PRESENT CONFIGURATION AT SHARAVATHY SHARAVATHY:1035 MW SHIMOGA STRP:240,MW TO DAVANAGERE TALAGUPPA TO NELAMANGALA- OPEN AT NELAMANGALA.TERMINATION WORKS PENDING S1 S5 HUBLI JUMPER REMOVED 400 KV LINES OPERATED PRESENTLY AT 220 KV S2 S3S4

FINAL CONFIGURATION AT SHARAVATHY FINAL CONFIGURATION AT SHARAVATHY SHARAVATHY:1035 MW SHIMOGA STRP:240,MW TO DAVANAGERE TALAGUPPA:2*315 MVA TO NELAMANGALA S1 S5 HUBLI S2 S3S4

RIVERS AND RESERVOIRS GEN STN RESERVOIR FRL IN MU RIVER SHARAVATHY AND LDPH LINGANAMAKKI4660SHARAVATHY SUPA,NJPH, KODASALLI,KADRA, SUPA2990KALINADI BHADRABHADRABHADRA T.B.DAM, MUNIRABAD T.B DAM THUNGABHADRA VARAHI, MANI DAM PH MANI DAM 881VARAHI

VARIABLE COST OF SOME POWER STATION OF KARNATAKA POWER STATION/UNIT VARIABLE COST (Ps) TANIR BHAVI293 RAICHUR.T.PS.-IV270 RAICHUR.T.PS.-V260 RAICHUR.T.PS.-VI260 JINDAL(IPP) *260 YELEHANKA DEISEL205 RAICHUR.T.PS.-III165 TATA DIESEL160 RAICHUR.T.PS.-I144 RAICHUR.T.PS.-II144

220 KV TRANSMISSION LINES EXPECTED SHIMOGA – VARAHI DC - DEC SHIMOGA – VARAHI DC - DEC AMBEWADI – NARENDRA DC – DEC 2002 AMBEWADI – NARENDRA DC – DEC 2002 S’HALLI-MALUR-KOLAR-CHINTAMANI DC – DEC 2002 S’HALLI-MALUR-KOLAR-CHINTAMANI DC – DEC 2002 NARENDRA - HAVERI DC – DEC 2003 NARENDRA - HAVERI DC – DEC 2003 NELAMANGALA – DB PURA – DEC 2003 NELAMANGALA – DB PURA – DEC 2003 KOLAR – GOWRIBIDANUR DC – OCT 2004 KOLAR – GOWRIBIDANUR DC – OCT KV TALAGUPPA – NELAMANGALA DC 400 KV TALAGUPPA – NELAMANGALA DC

EXPECTED GENERATION ADDITIONS KARNATAKA (IN MW) ALMATTI-HYDRO 290 VIJAYANAGAR - THERMAL 500 RTPS UNIT TOTAL

400KV TRANSMISSION LINES PLANNED 400 KV NELAMANGALA-MYSORE 400 KV NELAMANGALA-MYSORE 400 KV MYSORE-KOZHIKODE 400 KV MYSORE-KOZHIKODE 400 KV KAIGA-NARENDRA 400 KV KAIGA-NARENDRA 400 KV NARENDRA-GUTTUR 400 KV NARENDRA-GUTTUR 400 KV GUTTUR-HASSAN-MYSORE 400 KV GUTTUR-HASSAN-MYSORE 400 KV MANGALORE-HASSAN-NELAMANGALA 400 KV MANGALORE-HASSAN-NELAMANGALA 400/220 KV 500 MVA ICT AT HOODY 400/220 KV 500 MVA ICT AT HOODY

ANDHRA PRADESH: QUICK FACTS TOTAL AREA SQ KMS TOTAL AREA SQ KMS PER CAPITA CONSUMPTION510 KWH PER CAPITA CONSUMPTION510 KWH 400 KV TL1287 CKM 400 KV TL1287 CKM 220 KV TL10297 CKM 220 KV TL10297 CKM 110 KV TL12439 CKM 110 KV TL12439 CKM 33 KV TL CKM 33 KV TL CKM 11 KV TL CKM 11 KV TL CKM LT LINES CKM LT LINES CKM 400/220 KV TR1260 MVA 400/220 KV TR1260 MVA 220/132KV TR13353 MVA 220/132KV TR13353 MVA

ANDHRA PRADESH GRID HIGHLIGHTS Installed Capacity (MW) Peak Demand Met(MW) Peak Demand Requirement(MW) % Demand Deficit 12%16% Total Energy Consumed(MU) Energy Requirement(MU) % Energy Deficit 10%11% Average Daily Consumption 127

INSTALLED CAPACITY OF ANDHRA PRADESH AS ON IN MW 8029MW

INSTALLED CAPACITY OF ANDHRA PRADESH: IN MWIN PERCENTAGE HYDRO319240% THERMAL344343% GAS2733% WIND20.02% IPP111914% TOTAL8029 AS ON 31 st July 02

CONSUMER PROFILE IN ANDHRA PRADESH

PROBLEMS FACED IN OPERATION EVACUATION PROBLEM FOR NORTH EASTERN COASTAL PARTS EVACUATION PROBLEM FOR NORTH EASTERN COASTAL PARTS EVACUATION PROBLEMS AT VTS EVACUATION PROBLEMS AT VTS HIGH AGRICULTURAL LOADS CAUSE SEASONAL VOLTAGE PROBLEM HIGH AGRICULTURAL LOADS CAUSE SEASONAL VOLTAGE PROBLEM CUDAPPAH AREA FACES LOW VOLTAGE IF RYTPS UNITS NOT AVAILABLE CUDAPPAH AREA FACES LOW VOLTAGE IF RYTPS UNITS NOT AVAILABLE HUGE LOAD RELIEF DURING CHANGE OVER- TRUNK LINE LOADINGS HUGE LOAD RELIEF DURING CHANGE OVER- TRUNK LINE LOADINGS RESERVOIRS WITH INSUFFICIENT STORAGE CAPACITY RESERVOIRS WITH INSUFFICIENT STORAGE CAPACITY SCHEDULING IPP’S DURING LEAN DEMAND SCHEDULING IPP’S DURING LEAN DEMAND GENERATORS NOT ON FREE GOVERNER GENERATORS NOT ON FREE GOVERNER GRIDMAP SHOW ME

EVACUATION AT GZK

VTS AND LANCO EVACUATION VTSG FROM BHIMADOLU FROM VGTS-II NUNNA 400KV NUNNA GUNADALA KONDAPALLI LANCO=350MW CHILLAKALLU TO MALKARAM VIA NKTPALLI TALAPALLI TALAPALLI 400 KV PODILI TADIKONDA ONGOLE STATION DIAGRAM VTS=1260 MW 180 x x x 2 10 x x x

EVACUATION OF KTS TO L.SILERU TO HARD WATER PLANT VIA MANUGURU KTS 1170MW KHAMMAM KHAMMAM 400 KV STATION DIAGRAM NUNNA NUNNA 400 KV S.R.PATNAM N’SAGAR MIRYALGUDA SH’ NAGAR

‘TWIN CITY’ RING MAIN GACHIBOWLI CHANDRAYANGUTTA TO SRISAILAM MAMMIDAPALLI MAMMIDAPALLI- 400KV SHAPOORNAGAR MALKARAM GHANAPUR TO MMDPALLI TANDUR YEDDUMAILARAM MOULALI NKT PALLI CHILLAKALLU

SIMHADRI(500 MW)

SHOW ME THE MAP SRISAILAM TURBINE TYPE: FRANCIS HEAD : 83 MTS STORAGE FRL 271MTS STORAGE MDDL 243 MTS N’SAGAR TURBINR TYPE:FRANCIS HEAD : 93 MTS STORAGE FRL 180MTS STORAGE MDDL 149 MTS

JALAPUT TYPE: STORAGE FRL 838MTS- 534 MU STORAGE MDDL 809 MTS

NATURAL ADVANTAGES GATE WAY OF SOUTH GATE WAY OF SOUTH GATE WAY OF SOUTH GATE WAY OF SOUTH MOST CONNECTED STATE MOST CONNECTED STATE HIGHLY NETWORKED HIGHLY NETWORKED BETTER SHORT CIRCUIT LEVEL AND STABILITY BETTER SHORT CIRCUIT LEVEL AND STABILITY ALLOWED TO DRAW MVAR AT RAMAGUNDAM ALLOWED TO DRAW MVAR AT RAMAGUNDAM BEING AT THE MOUTH HAS ADVANTAGE AVAILING MORE ASSISTANCE FROM NEIGHBOURING REGION BEING AT THE MOUTH HAS ADVANTAGE AVAILING MORE ASSISTANCE FROM NEIGHBOURING REGION

BACK

<2MU 2-4MU 4-6MU >6MU

VARIABLE COST OF SOME POWER STATION IN ANDHRA PRADESH POWER STATION/UNIT VARIABLE COST (Ps) NELLORE234 RAYALASEEMA125 KOTHAGUDEM-A123 KOTHAGUDEM-B123 KOTHAGUDEM-C123 KOTHAGUDEM-D123 VIJAYAWADA103 RAMAGUNDAM-B102 SIMHADRI100 KONDAPALLI92 VIJJESWARAM87 VIJJESWARAM86 JEGURUPADU83 SPECTRUM83

220KV JEGRUPADU-VEMAGIRI20 220KV VEMAGIRI-BHIMAVARAM D/C KV BHIMAVARAM-GUDIWADA D/C KV GUDIWADW-NUNNA D/C92 220KV PEDDAPURAM-VEMAGIRI82 400KV RAMAGUNDAM (BPL)-DITCHIPALLY(SC) KV RAMAGUNDAM(BPL)-GAJWEL(SC) KV KRISHNAPATNAMTPS-KRISHNAPATNAM S/S(2XSC) 20 LILO FROM 400KV GOOTY- TALAPALLY SC LINE TO KURNOOL S/S KV GAJWEL-HYDERBAD (SC) KV KALPAKA-VEMAGIRI-NUNNA DC EXPECTED TRANSMISSION ADDITIONS IN CKM

TAMIL NADU: QUICK FACTS TOTAL AREA SQ KMS NUMBER OF CONSUMERS 152 LAKHS CONNECTED LOAD MW 230 KV TL 6782 CKT KMS 110 KV TL CKT KMS 66 KV TL 2706 CKT KMS

TAMIL NADU GRID HIGHLIGHTS Installed Capacity(MW) Peak Demand Met(MW) Peak Demand Requirement(MW) % Demand Deficit 8%14% Total Energy Consumed(MU) Energy Requirement(MU) % Energy Deficit 10% Average Daily Consumption

INSTALLED CAPACITY OF TAMIL NADU AS ON IN MW 6587MW

INSTALLED CAPACITY OF TAMIL NADU: IN MWIN PERCENTAGE HYDRO199330% THERMAL357055% GAS1302% WIND190.29% IPP87513% TOTAL6587 AS ON 31 st July 02

CONSUMER PROFILE IN TAMIL NADU

PROBLEMS HYDRO GENERATION MONSOON DEPENDENT HYDRO M/C s OF SMALL CAPACITY. ITS CONTRIBUTION IS LESS FOR ANY MAJOR LOAD VARIATIONS. PEAKING SHORTAGE CONSTRAINTS FOR AVAILING IMPORTS ANY MAJOR THERMAL UNIT TRIPPING, AGGRAVATES THE SITUATION FOLLOWED BY VOLTAGE PROBLEMS.

PROXIMICITY OF GENERATING STATIONS Thermal Hydro Nuclear IPP/GAS KALPAKKAM NORTH MADRAS ENNORE NEYVELI-TS II NEYVELI-TS I METTUR METTUR DAM MOYAR PYKARA KUNDAH COMPLEX TUNNEL TUTICORIN KODAYAR PAPANASAM SERVALAR PERIYAR SURULIYAR KADAMPARAI ALIYAR SHOLAYAR SARKARPATHI BALAJI BASIN BRIDGEGMR VASAVI TCPL P P NALLUR KOVI KALLAPAL SAMALPATTY

LOAD CENTRES IN TN CITY LOADS MAIN AGRI AREA

TYPICAL LOADS IN MAIN CITIES CITYLOADS IN MW CHENNAI1500 COIMBATORE400 TRICHY300 MADURAI300 SALEM250

LIST OF HYDROSTATIONS STATION (NI)UNITSCAP (MW) YEAR OF COMMI SIONING STATION (IRR)UNIT S CAP (MW) YEAR OF COMMI SIONING PYKARA3X7+2X11+ 2X METTUR DAM4X MOYAR3X METTUR TUNNEL4X KUNDAH I3X LOWER METTUR8X KUNDAH II5X PERIYAR4X KUNDAH III3X PAPANASAM4X KUNDAH IV2X SERVALAR1X KUNDAH V2X SARKAR.PATHI1X KUNDAH VI2X SHOLAYAR I2X SURULIYAR1X SHOLAYAR II1X KADAMPARAI4X ALIYAR1X KODAYAR1X60+1X

KADAMPARAI PUMPED STORAGE HEP NO OF UNITS : 2 (INITIALLY) TYPE OF PUMP-TURBINE- REVERSIBLE FRANCIS(VETICAL SHAFT) OUTPUT OF GENERATOR MW AT 0.9 pf lag INPUT DURING PUMPING MW AT 0.98 pf lead RATED SPEED – 500 rpm Contd

KADAMPARAI PUMPED STORAGE HEP UPPER RESERVOIR (KADAMPARAI) FRL m MDDL m STORAGE –29.4 mcm (live) GEN. – 3.7mcft/hr/m/c LOWER RESERVOIR (UPPER ALIYAR) FRL – m MDDL – m STORAGE –21.6 mcm (live) PUMPING mcft/hr/m/c

WIND ENERGY TOTAL INSTALLED CAPACITY IN THE COUNTRY MW IN TAMIL NADU-800MW REQUIREMENT – MINIMUM WIND VELOCITY-24 kms/hr DESIRABLE WIND VELOCITY-48 kms/hr LIMITATIONS - SEASONAL, DEPEND ON WIND VELOCITY - COSTLY - MVAR DEPENDENCY ON GRID

CHENNAI SUPPLY POWER AVAILABLE IN AND AROUND CHENNAI AT PEAK ETPS – 450 MW NMTPS – 630 MW B.B MW GMR VASAVI- 186 MW TCPL MW TOTAL MW AVAILABLE GENERATION (APPROXI) MW TOTAL LOADS IN CHENNAI (APPROXI) – 1500 MW BALANCE MET THROUGH IMPORTS

TOTAL INFLOWS IN MU FOR TN

VARIABLE COST OF SOME POWER STATION IN TAMIL NADU POWER STATION/UNIT VARIABLE COST (Ps) BASIN BRIDGE489 P P NALLUR282 SAMALPATTY225 BALAJI POWER214 VASAVI GAS (IPP)212 ENNORE.T.P.S203 KOVIL KALAPPAL200 NEYVELI-I169 TUTUCORIN.T.P.S144 METTUR.T.P.S142 NORTH MADRAS.T.P.S142

EXPECTED GENERATION ADDITIONS STATIONCAPACITY (MW)EXPECTED YEAR HYDRO PYKAKARA ULTIMATE 3X500CT -02 GAS PEUUMKULAM 1X PRIVATE ST-CMS 250DEC-02 NCTPS 2X52510 th PLAN TTPS 4th STAGE 1X52511 th PLAN SRIMUSHANAM th PLAN

TRANSMISSION LINES EXPECTED 400 KV NCTPS TS II-SPDR LILO OF NELLUR-SPDR AT ALMATHY KV LILO OF METTUR-HOSUR AT KARIMANGALAM LILO OF ETS-KORATTUR AT MANALI THENI-SEMPATTY THIRUVANAMALAI-VILLUPURAM -2003

KERALA: QUICK FACTS TOTAL AREA 38,863 SQ KMS NUMBER OF CONSUMERS 61 LAKHS CONNECTED LOAD 8150 MW 230 KV TL 1999 CKT KMS 110 KV TL 2969 CKT KMS 66 KV TL 2707 CKT KMS

KERALA GRID HIGHLIGHTS Installed Capacity(MW) Peak Demand Met(MW) Peak Demand Requirement(MW) % Demand Deficit 8%9% Total Energy Consumed(MU) Energy Requirement(MU) % Energy Deficit 11% Average Daily Consumption 3435

INSTALLED CAPACITY OF KERALA AS ON IN MW 2553MW

INSTALLED CAPACITY OF KERALA: IN MWIN PERCENTAGE HYDRO179570% THERMAL2359% GAS35014% WIND20.08% IPP1717% TOTAL2553 AS ON 31 st July 02

CONSUMER PROFILE IN KERALA

PROBLEMS HYDRO GENERATION MONSOON DEPENDENT PEAKING SHORTAGE CONSTRAINTS FOR AVAILING IMPORTS LOW VOLTAGE PROBLEM IN NORTHERN KERALA

GENERATING SCHEME

VARIABLE COST OF SOME POWER STATION OF KERALA POWER STATION/UNIT VARIABLE COST (Ps) KAYAMKULAM220 BRAHMAPURAM DIESEL225

Sl NoName of stations Capacity in MW Targetted Year 1Kuttiyadi Additional Ext.100Aug-05 2Athirappally Malankara10.5Jul-02 4Meen Vallom2.4Apr-03 5Kuttiadi Tail Race3.75Apr-03 6Chembukadavu Stage12.7Jun-02 7Chembukadavu Stage23.75Dec-02 8URUMI Stage13.75Dec-02 9URUMI Stage22.4Dec-02 10Bothathan kettu(P)16Apr-06 11Ullangal(P)7Jun-06 12Karikkayam(p)15Mar-06 Thermal 13DCP Kasarkode105Dec-03 GENERATING SCHEMES UNDER CONSTRUCTION