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AUDITORS

2

SOUTHERN REGION

WESTERNREGION

EASTERN REGION

NORTHERN REGION

NORTH-EASTERN REGION

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

3

SOUTHERN REGION

WESTERNREGION

EASTERN REGION

NORTHERN REGION

NORTH-EASTERN REGION

‘ ELECTRICAL’

REGIONS1

2

3

SAME FREQUENCY FROM GUJARAT TO ARUNACHAL PRADESH WITH EFFECT FROM MARCH 2003

ABOUT 2800 KMS! APART

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SOUTHERN REGION

WESTERNREGION

EASTERN REGION

NORTHERN REGION

NORTH-EASTERN REGION

‘ELECTRICAL’

REGIONS

1

2

WITH THE COMMISSIONING OF THE TALA PROJECT CONNECTING THE EASTERN AND NORTHERN GRIDS, INDIA WILL HAVE ONLY TWO GRIDS

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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

SOUTHERN REGION – GEOGRAPHY

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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

SR STATES – GEOGRAPHYKARNATAKA

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

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SR STATES – POWER SYSTEM STATISTICSANDHRA 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%

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%

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%

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GROWTH OF INSTALLED CAPACITY OF SR

1947

5

1983

0

2030

4

2129

8

2213

3

2298

3

2417

3 2616

3 2850

1

2952

6

10000

12000

14000

16000

18000

20000

22000

24000

26000

28000

30000

1994-95 1995-96 1996-97 1997-98 1998-99 1999-00 2000-01 2001-02 2002-03 2003-04

YEARS --->

IN MW

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INSTALLED CAPACITY IN SR

STATES HYDRO THERMAL NUCLEARDIESEL/

GAS WIND OTHERS TOTAL IN %

AP 3586 2993   272 2   6853 21%

KAR 3111 1470   128 5   4714 15%

KER 1808     235     2043 6%

TN 1996 3570   423 19   6008 19%

C.S   6990 830 360     8180 26%

IPP 229 794 0 2432 245 377 4078 13%

TOTAL 10730 15817 830 3851 271 377 31876  

IN % 34% 50% 3% 12% 1% 1%    

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15817 (50%)

10730 (34%)377 (1%)

830 (3%)271 (0.9%)

3851 (12%)

HYDRO THERMAL GAS WIND NUCLEAR OTHERS

SOURCE-WISE INSTALLED CAPACITY OF SR IN MW

31,876 MW

HYDRO

THERMAL

WIND

NUCLEAROTHERS

GAS

TAMILNADU HAS ABOUT 800 MW OF WINDMILL POWER WHICH IS NOT INCLUDED IN THE INSTALLED CAPACITY.

LIKEWISE MICRO AND CAPTIVE CAPACITIES ARE NOT INCLUDED

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4714 (15%)

6853 (21%)4078 (13%)

8180 (26%)

6008 (18.8%)

2043 (6%)

AP KAR KER TN CS IPP

AGENCY-WISE INSTALLED CAPACITY OF SRIN MW31,876 MW

ANDHRA PRADESH

KARNATAKA

TAMIL NADU

CENTRAL SECTOR

IPP

KERALA

12

13000

14000

15000

16000

17000

18000

19000

20000

21000

22000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

TIME IN HRS --->

DE

MA

ND

IN

MW

---

>

MONSOON SUMMER WINTER

TYPICAL LOAD CURVE OF SR

WINTER

MONSOON

SUMMER

EVENING PEAK

WEATHER

RESERVOIR CONSUMPTION SCROLL DEMAND

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6%

23%4%

37%

30%

Domestic Commercial Irrigation Industry Others

LOAD COMPOSITION IN SOUTHERN GRID

Domestic

IndustryCommercial

Irrigation

Others

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LOAD 500-1200 MW

LOAD 200-500 MW

TYPICAL

LOAD

SPREAD

IN SR

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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

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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

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GRID OPERATION PRESENT

STABILISED SYSTEM FREQUENCY

IMPROVED VOLTAGES

MERIT ORDER OPERATION

INTER REGIONAL EXCHANGES

IMPROVED GRID SECURITY

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LANDMARKS

• UNIFIED LOAD DESPATCH SCHEME

• AVAILABILITY BASED TARIFF

• TALCHER-KOLAR HVDC LINK

• OPERATIONAL EXCELLENCE

• SPECIFIC ACTIONS BY SRLDC

• FINANCIAL DISCIPLINE

SCHD DRWL

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