1. SPECIFIC IMPROVEMENT IN SR IN RECENT PAST FREQUENCY IN NORMAL BAND - 99.70 % OF TIME FREQUENCY IN NORMAL BAND - 99.70 % OF TIME FREQUENCY IN NORMAL BAND - 99.70 % OF TIME FREQUENCY IN NORMAL BAND - 99.70 % OF TIME NORMAL VOLTAGES THROUGH OUT THE GRID NORMAL VOLTAGES THROUGH OUT THE GRID NORMAL VOLTAGES THROUGH OUT THE GRID NORMAL VOLTAGES THROUGH OUT THE GRID SYSTEM STRENGTHENING SYSTEM STRENGTHENING SYSTEM STRENGTHENING SYSTEM STRENGTHENING GAZUWAKA POLE-II GAZUWAKA POLE-II GAZUWAKA-VIJAYAWADA CKT-II AND III GAZUWAKA-VIJAYAWADA CKT-II AND III HYDERABAD-KURNOOL-GOOTY-NELAMANGALA HYDERABAD-KURNOOL-GOOTY-NELAMANGALA MADURAI – TRIVENDRUM D/C LINE MADURAI – TRIVENDRUM D/C LINE KAIGA – NARENDRA LINE KAIGA – NARENDRA LINE SPECIAL PROTECTION SCHEME FOR TALCHER-KOLAR SPECIAL PROTECTION SCHEME FOR TALCHER-KOLAR SPECIAL PROTECTION SCHEME FOR TALCHER-KOLAR SPECIAL PROTECTION SCHEME FOR TALCHER-KOLAR SYSTEM CONTINGENCY AVERTED ON SYSTEM CONTINGENCY AVERTED ON 26 JAN 2005- BIPOLE TRIP 26 JAN 2005- BIPOLE TRIP 28 APRIL 2005 – BIPOLE TRIP 28 APRIL 2005 – BIPOLE TRIP 9 TH MAY 2005 – ONLY POLE IN SERVICE TRIPPED 9 TH MAY 2005 – ONLY POLE IN SERVICE TRIPPED LOSSES IN GRID REDUCED CONSIDERABLY LOSSES IN GRID REDUCED CONSIDERABLY LOSSES IN GRID REDUCED CONSIDERABLY LOSSES IN GRID REDUCED CONSIDERABLY IMPROVEMENT IN SYSTEM SECURITY AND RELIABILITY IMPROVEMENT IN SYSTEM SECURITY AND RELIABILITY IMPROVEMENT IN SYSTEM SECURITY AND RELIABILITY IMPROVEMENT IN SYSTEM SECURITY AND RELIABILITY PROFILE

2. SPECIFIC IMPROVEMENT IN SR IN RECENT PAST FREE GOVERNOR MODE OF OPERATION FREE GOVERNOR MODE OF OPERATION FREE GOVERNOR MODE OF OPERATION FREE GOVERNOR MODE OF OPERATION KADAMPARAI PUMP MODE OPERATION KADAMPARAI PUMP MODE OPERATION KADAMPARAI PUMP MODE OPERATION KADAMPARAI PUMP MODE OPERATION STEPPED-UP IR TRANSACTIONS STEPPED-UP IR TRANSACTIONS STEPPED-UP IR TRANSACTIONS STEPPED-UP IR TRANSACTIONS MERIT-ORDER DESPATCH :- IMPACT OF REAL TIME DATA MERIT-ORDER DESPATCH :- IMPACT OF REAL TIME DATA MERIT-ORDER DESPATCH :- IMPACT OF REAL TIME DATA MERIT-ORDER DESPATCH :- IMPACT OF REAL TIME DATA REMOTE CONTROL INTERFACE:- CONTROL OF TALCHER- KOLAR DC POWER FROM RLDC REMOTE CONTROL INTERFACE:- CONTROL OF TALCHER- KOLAR DC POWER FROM RLDC REMOTE CONTROL INTERFACE REMOTE CONTROL INTERFACE TRAINING ON ULDC FOR SR CONSTITUENTS TRAINING ON ULDC FOR SR CONSTITUENTS TRAINING ON ULDC FOR SR CONSTITUENTS TRAINING ON ULDC FOR SR CONSTITUENTS

4. 2004-05 2003-04 <49.0 49.0 & <49.5 49.5 & <50.5 50.5 & Above MaxMinAvgFVI 2004-050.138.4991.210.1750.9048.6249.850.83 2003-042.3022.0375.230.4451.1748.1849.691.95 2002-0349.4814.4834.032.0151.3747.6948.9518.86 2002-03 FREQUENCY DURATION CURVE 2002-03, 2003-04 & 2004-05 NEXT

5. YEAR FREQUENCY (Hz)% OF TIME WHEN FREQUECY WAS BETWEEN AVERAG FVI MAXIMUMMINIMUMAVERAGE < 48.5 HZ 48.5 TO 49. 0 HZ 49.0 TO 49. 5 HZ 49.5 TO 50. 0 HZ 50.0 TO 50. 5 HZ > 50.5 HZ 00 – 01 51.5647.7648.6753.7917.6813.6312.262.64--- 01 – 02 51.4447.7248.5268.089.966.4811.394.1029.71 02 – 03 51.3747.6948.9539.3110.1714.4823.9310.102.0118.86 03 – 04 51.1748.1849.690.102.2022.0363.0012.230.441.95 04 - 05 50.9048.6249.850.000.138.4963.8127.400.170.83 FREQUENCY SPECTRUM OF SOUTHERN REGION FOR PAST FIVE YEARS BACK

6. VOLTAGE PROFILE OF SOUTHERN REGION FOR PAST FIVE YEARS YEAR RAMAGUNDAMHYDERABADCUDDAPHABANGALOREMADRASTRISSURNEYVELI II MAXMINMAXMINMAXMINMAXMINMAXMINMAXMINMAXMIN 2000-01 397385396377396361379333386354400363392374 2001-02 405394409388404366396345399369406369400382 2002-03 407399412397403377403367398376407385403391 2003-04 409402411397415398405385417403412400414406 2004-05 411403416402415398410391423406414398418409

7. SOUTHERN REGION LOSS * 2002 20032004**2005** LOAD (MW) (MW)LOSS(MW)LOSS %LOAD LOSS(MW)LOSS %LOAD LOSS(MW)LOSS %LOAD LOSS(MW)LOSS % AP65104086.2759832644.4172343114.3075572793.69 KARNATAKA40782656.5046092375.1451582284.4252851833.46 KERALA1928824.2522271014.542479863.472453662.69 TAMILNADU61352243.6568882403.4874211982.6775222162.87 PONDICHERRY 21500.00 CENTRALGENERATING STATION STATION47200.0068400.00538 0.0012100.00 SOUTHERNREGION191239795.12203918424.13228308233.6231537443.21 *Source : Report of System Studies conducted for Accessing Shunt Compensation requirement in Southern Region – March 2004 and March 2005 - SREB,CEA ** Projected figures 0.5% REDUCTION MEANS 100 CR ANNUAL SAVINGS 0.5% REDUCTION MEANS 100 CR ANNUAL SAVINGS

8. NO DISTURBANCES DESPITE LOSING ENTIRE SUPER GENERATING PLANTS LIKE RAMAGUNDAM,VIJAYAWADA,KOTHAGUDEM, NORTH CHENNAI, SHARAVATHY,NAGJHARI ETC MAJOR AND MINOR DISTURBANCES SINCE 1994

9. TALCHER-KOLAR IMPORT OF 21224MUs FROM ER THROUGH TALCHER-KOLAR UPTO OCT - 05 YEAR ---> 2002200320042005MONTHS TOTAL ENERGY (IN MU) MAX FLOW (IN MW) TOTAL ENERGY (IN MU) MAX FLOW (IN MW) TOTAL ENERGY (IN MU) MAX FLOW (IN MW) TOTAL ENERGY (IN MU) MAX FLOW (IN MW) JAN------31185080515288521583 FEB------273101070115087751865 MAR------491131683716008841507 APR------473118392315008781600 MAY------172102665213857041500 JUN------27799468814166911605 JUL------3191075759149012541880 AUG------346108862813418571600 SEP6200512153374215527321881 OCT585005081458 82915508951808 NOV775004701048 7191600 DEC241750 6301383 8821615 TOTAL382 4782 9165 8522 AVERAGE96 399 764 852 MAX FLOW 750 1533 16151881

10. KADAMPARAI GENERATION/PUMP ENERGY FROM JAN - 2003 200320042005 GENERATOR MODE PUMP MODE GENERATOR MODE PUMP MODE GENERATOR MODE PUMP MODE JAN 3938445800 FEB 394621 00 MAR 325161800 APR 3540263503 MAY 374341483046 JUN 294555354551 JUL 474950497962 AUG 5455 41 5025 SEP 36483025 4115 OCT 261500 4745 NOV 232400 DEC 495300 TOTAL 446507328330292247

11. FREQ BASED DESPATCH: ULDC

12. ULDC TRAINING PROGRAMS SL NAME OF THE TRAINING FROMTOParticipants Man Days 1 CISCO ROUTER & NETWORKING 19-01-200424-01-200417102 2XA-21 USER LEVEL23-02-200428-02-20041060 3RTNA WORKSHOP29-03-200431-03-20041442 4 AIX OPERATING SYSTEM 17-05-200422-05-20041590 5XA-21 USER LEVEL21-06-200425-06-2004630 6 SYBASE DATABASE ADMIN 22-11-200404-12-200419228 7XA-21 USER LEVEL21-02-200523-02-2005721 8NMS TRAINING13-06-200518-06-20051484 TRAINING ON RTU IS BEING REQUESTED REPEATEDLY BY CONSTITUENTS. FACULTY FOR THE SAME IS BEING IDENTIFIED.

13. KOLAR RCI CONTROL