PETITION BY TNEB TO INVESTIGATE ANY GAMING BY THE GENERATORS PETITION NO:- 90/2005 CERC HEARING ON 06-OCT-05

PRESENTATION OVERVIEW  CERC TARIFF ORDER – RELEVANT ABSTRACT CERC TARIFF ORDER – RELEVANT ABSTRACT  INSTALLED CAPACITY OF ISGS IN SR INSTALLED CAPACITY OF ISGS IN SR  UI SUMMARY UI SUMMARY  EXCESS GENERATION BY ISGS EXCESS GENERATION BY ISGS  STATEMENT OF DC,SCHEDULE AND ACTUAL GENERATION STATEMENT OF DC,SCHEDULE AND ACTUAL GENERATION  DC, SCHEDULE AND ACTUAL DRAWAL GRAPHS DC, SCHEDULE AND ACTUAL DRAWAL GRAPHS

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CERC TARIFF ORDER- RELEVANT ABSTRACT (i) “Any generation up to 105% of Declared Capacity in any time block of 15 minutes and averaging up to 101% of the average Declared Capacity over a day shall not be construed as gaming, and generator shall be entitled to UI charges for such excess generation above the scheduled generation (SG). (ii) For any generation beyond the above prescribed limits, the Regional Load Despatch Centre shall investigate so as to ensure that there is no gaming and if gaming is found by the Regional Load Despatch Centre, the corresponding UI charges due to the generating station on account of such extra generation shall be reduced to zero and the amount shall be adjusted in UI account of beneficiaries, in the ratio of their capacity share in the generating station.” Central Electricity Regulatory Commission (Terms and Conditions of Tariff) Regulations,2004,Dated 26 th March 2004 of clause 24 of 2 is as follows:

SOUTHERN REGIONAL GRID Inter State Generating Stations in the Region participating in the UI mechanisem: Ramagundam STPS 1-6 : 2100 MW (200x x4) Ramagundam STPS 7 : 500 MW NLC TPS 2 / I : 630 MW (210 x 3) NLC TPS 2 / II : 840 MW (210 x 4) NLC TPS 1(EXP.) : 420 MW (210X2) TALCHER STAGE II : 2000 MW (500X4) situated in ER

SUMMARY OF UI – 141 WKS (FROM 01/JAN/03 TO 11/SEPT/05) WEEK WISE UI AMOUNT Total UI in MUs Total amount in Crores Rs. Average rate of UI in paise/unit AP (S) KAR (P) KER (P) TN (P) RSTPS (1-6) (S) RSTPS UNIT (S) NLC II/ (S) NLC II/ (S) NLCEXP (S) TALST (S) UI IN MU (+) OVER DRAWAL BY STATES (+) OVER GENERATION BY GENERATORS ( - ) UNDER DRAWAL BY STATES ( - ) UNDER GENERATION BY GENERATORS TOTAL AMOUNT ( + ) PAYABLE TO THE POOL ( - ) RECEIVABLE FROM THE POLL P - PURCHASE PRICE S - SELLING PRICE

SUMMARY OF UI –65 WKS (FROM 01/JAN/03 TO 29/MAR/04) Total UI in MUs Total amount in Crores Rs. Average rate of UI in paise/unit AP (S) KAR (P) KER (P) TN (P) RSTPS (1-6) (S) RSTPS UNIT 7 NLC II/ (S) NLC II/ (S) NLCEXP (S) TALST ( P) UI IN MU (+) OVER DRAWAL BY STATES (+) OVER GENERATION BY GENERATORS ( - ) UNDER DRAWAL BY STATES ( - ) UNDER GENERATION BY GENERATORS TOTAL AMOUNT ( + ) PAYABLE TO THE POOL ( - ) RECEIVABLE FROM THE POLL P - PURCHASE PRICE S - SELLING PRICE WEEK WISE UI AMOUNT

SUMMARY OF UI – 76 WKS (FROM 29/MAR/04 TO 11/SEPT/05) Total UI in MUs Total amount in Crores Rs. Average rate of UI in paise/unit AP (S) KAR (P) KER (P) TN (P) RSTPS (1-6) (S) RSTPS UNIT (S) NLC II/ (S) NLC II/ (S) NLCEXP (S) TALST ( S) UI IN MU (+) OVER DRAWAL BY STATES (+) OVER GENERATION BY GENERATORS ( - ) UNDER DRAWAL BY STATES ( - ) UNDER GENERATION BY GENERATORS TOTAL AMOUNT ( + ) PAYABLE TO THE POOL ( - ) RECEIVABLE FROM THE POLL P - PURCHASE PRICE S - SELLING PRICE WEEK WISE UI AMOUNT

DECLRATION OF ACTUAL DC BY NTPC STATIONS OVER NORMATIVE DC RSTPS (U1 - U6 ) Month Average Normative DC Average Actual DC Average Additional DC Maximum Additional DC Extra Available Energy To Constituents (in MW) (in % ) (in MW) (in %) Dec Jan Feb Mar Apr May

GRAPHS OF DC, SCHEDULE AND ACTUAL DRAWAL NTPC –RSTPSRSTPS –RSTPS UNIT 7RSTPS UNIT 7 –TALCHER STAGE 2TALCHER STAGE 2 NLC –NLC STAGE 2/1NLC STAGE 2/1 –NLC STAGE 2/2NLC STAGE 2/2 –NLC TPS1 EXPANSIONNLC TPS1 EXPANSION TNEB

DC,SCHEDULE AND ACTUAL DRAWAL NTPC –RSTPSMWMUMWMU -TALCHER STAGE 2MWMUMWMU NLC –NLC STAGE 2/1 MWMUMWMU –NLC STAGE 2/2 MWMUMWMU –NLC TPS1 EXPANSION MWMUMWMU