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IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION NOTIFIED ON 30.03.2009 APPLICABLE FROM 01.04.2009. STATE LOAD DESPATCH CENTRE.

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Presentation on theme: "IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION NOTIFIED ON 30.03.2009 APPLICABLE FROM 01.04.2009. STATE LOAD DESPATCH CENTRE."— Presentation transcript:

1 IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION NOTIFIED ON APPLICABLE FROM STATE LOAD DESPATCH CENTRE

2 IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION DATED APPLICABLE FROM SN.Prior to After Frequency range for unscheduled inter change charge for frequency range below 50.5Hz. to 49.0Hz. The rate of UI below 50.5Hz. and upto 49.80Hz. linear in 0.02Hz. step at 8Ps/Unit for each step. Below 49.8Hz, linear in 0.02Hz. step in 18Ps per unit. The maximum UI rate is Rs.10/Unit. Frequency range for unscheduled inter change charge for frequency range below 50.3Hz. to 49.2Hz. The rate of UI below 50.3 and upto 49.5Hz. linear in 0.02Hz. step at 12Ps/Unit for each step. Below 49.5Hz and upto 49.2Hz. linear in 0.02 Hz step in 17Ps per unit 2.UI Cap for generators For coal, lignite and APM gas fired generations, the cap is 406Ps/Unit for over generation. UI Cap for generators For coal, lignite and APM gas fired generations, the cap is 408s/Unit for over generation or under generation in the frequency range between 50.3Hz and upto 49.2Hz.

3 IMPLICATION OF NEW REGIME AS PER CERC REGULATION ON UI SETTLEMENT MECHANISM ISSUED ON APPLICABLE FROM S N.Prior to After UI Cap for states NIL OD shall not exceed 12%age of its scheduled drawal or 150MW wherever is lower when frequency is below 49.5Hz and 3% on daily aggregate basis. Under generation of electricity from a generating station shall not exceed 12% of the scheduled injection when a frequency is below 49.5Hz and 3% on daily aggregate basis. 4Penalty for deviation For generators : In case of over generation, the same is restricted 105% of DC in a time block and 101% during the day is eligible for UI and capped at 406Ps/Unit For states: Same rates of UI are applicable for OD / UD For generators : for over generations, the cap is 408Ps/ Unit for over generation or under generation in the freq range between 50.3Hz and upto 49.2Hz. For under generations, when freq. is below 49.2Hz, the generating stations using coal, lignite or gas supplied under APM as fuel, additional unscheduled inter change charge equivalent to 40% of UI cap rate i.e Ps/Unit. For States: For over drawal during frequency below 49.2Hz, additional unscheduled inter change charge at the rate equivalent to 40% of the UI rate corresponding to frequency of 49.2Hz.i.e.1029 Ps/Unit.

4 IMPLICATION OF NEW REGIME AS PER CERC REGULATION ON UI SETTLEMENT MECHANISM ISSUED ON APPLICABLE FROM S. N.Prior to After Reporting of Deviation from schedule : NIL RLDC shall prepare and publish on its website the records, on monthly basis of UI accounts specifying the quantum of over drawal / under generation and corresponding amount of UI paid / received for each beneficiaries or generating station for time blocks when the frequency was below 49.2Hz and between 49.5 – 49.2Hz separately.

5 IMPLICATION OF NEW REGIME AS PER CERC REGULATION ON UI SETTLEMENT MECHANISM ISSUED ON APPLICABLE FROM S. N.Prior to After Reporting of Deviation from schedule : NIL RLDC shall prepare and publish on its website the records, on monthly basis of UI accounts specifying the quantum of over drawal / under generation and corresponding amount of UI paid / received for each beneficiaries or generating station for time blocks when the frequency was below 49.2Hz and between 49.5 – 49.2Hz separately.

6 UI Account as per new CERC Regulation dated (for the week 47/FY0809) All FIGURES IN Rs LACS Sr No. (1) INTRASTATE UTILITY (2) RECEIVING (3) PAYING (4) DIFFERENCE OF INTER STATE UI & INTRASTATE UI ADJUSTMENT AS PER THE DECISION TAKEN IN THE MEETING HELD IN SLDC ON & (5) ADJUSTED U.I.AMOUNT (6) UI Amount with capping of Coal based generators (7) Diff_UI Amount or Pool balance due to Capping (8)=(7)- (6) Additiona l UI amount (9) NET UI Amount (10)=(9)+(7) for Th Gen station & (9)+(6) for others 1I.P.STN RPH G.T.STN IPGCL PRAGATI BTPS BYPL BRPL NDPL NDMC MES TOTAL

7 ABSTRCT OF UI AMOUNT (-) indicates recievable & (+) indicates payable All FIGURES IN Rs LACS Sr No. UTILITY RECEIVING PAYING Amount for Cuurent Week 1I.P.STN RPH G.T.STN IPGCL PRAGATI BTPS BYPL BRPL NDPL NDMC MES Regional UI NRPC Pool balance of additional UI Pool balance of capping TOTAL

8 UI FOR NDPL DatesScheduled Drawal in Mus Actual Drawal in Mus UI Energy in Mus Admissible un adjusted UI amount in Rs. Lacs Adjusted UI amount in Rs Lacs Additional UI energy in Mus (Overdrawal below 49.2 hz) Additional UI Charge in Lacs NET UI AMOUNT Total

9 UI FOR BRPL DatesScheduled Drawal in Mus Actual Drawal in Mus UI Energy in Mus Admissible un adjusted UI amount in Rs. Lacs Adjusted UI amount in Rs Lacs Additional UI energy in Mus (Overdrawal below 49.2 hz) Additional UI Charge in Lacs NET UI AMOUNT Total

10 UI FOR BYPL DatesScheduled Drawal in Mus Actual Drawal in Mus UI Energy in Mus Admissible un adjusted UI amount in Rs. Lacs Adjusted UI amount in Rs Lacs Additional UI energy in Mus (Overdrawal below 49.2 hz) Additional UI Charge in Lacs NET UI AMOUNT Total

11 UI FOR NDMC DatesScheduled Drawal in Mus Actual Drawal in Mus UI Energy in Mus Admissible un adjusted UI amount in Rs. Lacs Adjusted UI amount in Rs Lacs Additional UI energy in Mus (Overdrawal below 49.2 hz) Additional UI Charge in Lacs NET UI AMOUNT Total

12 UI FOR MES DatesScheduled Drawal in Mus Actual Drawal in Mus UI Energy in Mus Admissible un adjusted UI amount in Rs. Lacs Adjusted UI amount in Rs Lacs Additional UI energy in Mus (Overdrawal below 49.2 hz) Additional UI Charge in Lacs NET UI AMOUNT Total

13 UI FOR GT Date s Declared Ex-bus Capacity in Mus Scheduled Ex-bus generation in Mus Actual Ex- bus generation in Mus UI Energy in Mus Admissibl e UI energy in Mus UI Amount in Rs. Lacs Admissible un adjusted UI amount in Rs. Lacs ADDITIONA L UI AMOUNT IN LACKS (Undergene ration below 49.2 Hz) Adjusted UI amount in lacks NET UI Tota l

14 UI FOR PPCL Dates Declared Ex-bus Capacity in Mus Scheduled Ex-bus generation in Mus Actual Ex- bus generation in Mus UI Energy in Mus Admissible UI energy in Mus UI Amount in Rs. Lacs Admissible un adjusted UI amount in Rs. Lacs ADDITIONAL UI AMOUNT IN LACKS(Unde rgeneration below 49.2 hz) Adjusted UI amount in lacks NET UI Total

15 UI FOR IP Dates Declared Ex-bus Capacity in Mus Scheduled Ex-bus generation in Mus Actual Ex- bus generation in Mus UI Energy in Mus Admissibl e UI energy in Mus ADDITIONAL UI AMOUNT IN LACKS(Und ergeneration below 49.2 Hz) Adjusted UI amount in lacks w/o capping Adjusted UI amount in lacks with capping NET UI Total

16 UI FOR RPH DatesDeclared Ex-bus Capacity in Mus Scheduled Ex-bus generation in Mus Actual Ex- bus generation in Mus UI Energy in Mus Admissible UI energy in Mus ADDITIONAL UI AMOUNT IN LACKS( Undergeneratio n below 49.2 hz) Adjusted UI amount in lacks Adjusted UI amount in lacks with capng NET UI Total

17 UI FOR BTPS DatesDeclared Ex- bus Capacity in Mus Scheduled Ex-bus generation in Mus Actual Ex- bus generation in Mus UI Energy in Mus ADDITIONA L UI AMOUNT IN LACKS( Undergener ation below 49.2 Hz) UI AMOUNT WITH CAPPING Adjusted UI amount in lacks Adjusted UI amount in lacks with capng NET UI Total

18 APPROVEL OF METHODOLOGY ADOPTED FOR DRAW OUT OF OVERDRAWAL OF DISCOM BETWEEN 49.5 Hz & 49.2 HZ AS PER LIMITS DEFINED BY DERC AND ADJUSTMENT REGARDING MISMATCH ARISING IN UI ACCOUNT DURING THE INTERIM PERIOD i.e TO AS PER DERC ORDER DATED THE LIMITS AS PER DERC ORDER ARE AS FOLLOWS: Over Drawal Allowed S.NO.Name of the utility % of its scheduled drawalMW 3% on daily aggregate basis 1BRPL12%573% 2NDPL12%383% 3BYPL12%353% 4NDMC12%173% 5MES12%33% TOTAL150


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