1. SPECIFIC IMPROVEMENT IN SR IN RECENT PAST FREQUENCY IN NORMAL BAND – 96.81 % OF TIME NORMAL VOLTAGES THROUGH OUT THE GRID SYSTEM STRENGTHENING –GAZUWAKA POLE-II –GAZUWAKA-VIJAYAWADA CKT-II AND III –HYDERABAD-KURNOOL-GOOTY-NELAMANGALA –MADURAI – TRIVENDRUM D/C LINE –KAIGA – NARENDRA LINE –NELAMANGALA – MYSORE D/C LINE –NELAMANGALA – BANGALORE D/C LINE (NEXT MONTH) SPECIAL PROTECTION SCHEME FOR TALCHER-KOLAR –SYSTEM CONTINGENCY AVERTED ON 26 JAN 2005- BIPOLE TRIP 28 APRIL 2005 – BIPOLE TRIP 9 TH MAY 2005 – ONLY POLE IN SERVICE TRIPPED SPECIAL PROTECTION SCHEME FOR KUDANKULAM LOSSES IN GRID REDUCED CONSIDERABLY IMPROVEMENT IN SYSTEM SECURITY AND RELIABILITY PROFILE

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

3. FREQUENCY DURATION CURVE 2002-03, 2003-04, 2004-05 & 2005-06 <49.0 49.0 & <50.5 50.5 & Above MaxMin 2005-062.1296.811.0751.0248.42 2004-050.1398.700.1750.9048.62 2003-042.3097.300.4451.1748.18 2002-0349.4848.512.0151.3747.69

4. FREQUENCY SPECTRUM OF SOUTHERN REGION FOR PAST SIX YEARS

5. FREQUENCY DISTRIBUTION HISTOGRAM OF SR DURING LAST 4 YEARS

6. TYPICAL VOLTAGE PROFILE IN SR (BANGALORE) DURING LAST 5 YEARS JAN-02JAN-06

7. VOLTAGE PROFILE OF SOUTHERN REGION FOR PAST SIX YEARS

8. IN SR 17935 MW OF THERMALS OUT OF 19227 MW (93%) HAS VARIABLE COST THAT FALLS IN THE RANGE OF 60PAISE TO 400 PAISE DETAILS>400 Ps/u CAP N D ESC TO EXIT

9. 49.72 HZ

10. Growth Of Inter Regional Energy Exchanges Inter regional Power exchanges have increased manifold

11. Grid performance

12. KOLAR SPECIAL PROTECTION SCHEME

13. KUDANKULAM SPECIAL PROTECTION SCHEME

14. KADAMPARAI ENERGY GENERATED/PUMPED DURING LAST 5 YEARS (MU)

15. KADAMPARAI GENERATION/PUMP ENERGY FROM JAN - 2003 2003200420052006 GENERATOR MODE PUMP MODE GENERATOR MODE PUMP MODE GENERATOR MODE PUMP MODE GENERATOR MODE PUMP MODE JAN39384458007293 FEB394621 005356 MAR3251618003138 APR35402635031224 MAY3743414830463035 JUN2945553545515049 JUL4749504979626042 AUG5455 415025 SEP364830254115 OCT2615004745 NOV2324006459 DEC495300 7063 TOTAL446507328330426369308337

16. TRAINING ON ULDC SYSTEM SLNAME OF THE TRAININGFROMTOParticipantsMan Days 1CISCO ROUTER & NETWORKING19-01-200424-01-200417102 2XA-21 USER LEVEL23-02-200428-02-20041060 3RTNA WORKSHOP29-03-200431-03-20041442 4AIX OPERATING SYSTEM17-05-200422-05-20041590 5XA-21 USER LEVEL21-06-200425-06-2004630 6SYBASE DATABASE ADMIN22-11-200404-12-200419228 7XA-21 USER LEVEL21-02-200523-02-2005721 8NMS TRAINING13-06-200518-06-20051484 9RTU TRAINING27-02-200603-03-20061470 10JAVA FOR SCADA ENVIRONMENT24-04-200629-04-20061696

17. KOLAR RCI CONTROL