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STATE LOAD DESPATCH CENTRE

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Presentation on theme: "STATE LOAD DESPATCH CENTRE"— Presentation transcript:

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

2 IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION DATED 30. 03
IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION DATED APPLICABLE FROM SN. Prior to After 1 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. 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 3. 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. 4 Penalty 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 5 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 5 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 30. 03
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) Additional UI amount (9) NET (10)=(9)+(7) for Th Gen station & (9)+(6) for others 1 I.P.STN 2 RPH 3 G.T.STN. IPGCL 4 PRAGATI 5 BTPS 6 BYPL 7 BRPL 8 NDPL 9 NDMC 10 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 1 I.P.STN 2 RPH 3 G.T.STN. IPGCL 4 PRAGATI 5 BTPS 6 BYPL 7 BRPL 8 NDPL 9 NDMC 10 MES 11 Regional UI NRPC 12 Pool balance of additional UI 13 Pool balance of capping TOTAL

8 UI FOR NDPL Dates Scheduled 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 16 17 18 19 20 21 22 Total

9 UI FOR BRPL Dates Scheduled 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 16 17 18 19 20 21 22 Total

10 UI FOR BYPL Dates Scheduled 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 16 17 18 19 20 21 22 Total

11 UI FOR NDMC Dates Scheduled 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 16 17 18 19 20 21 22 Total

12 UI FOR MES Dates Scheduled 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 16 17 18 19 20 21 22 Total

13 UI FOR GT 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 (Undergeneration below 49.2 Hz) Adjusted UI amount in lacks NET UI 16 17 18 19 20 21 22 Total

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(Undergeneration below 49.2 hz) Adjusted UI amount in lacks NET UI 16 17 18 19 20 21 22 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 Admissible UI energy in Mus ADDITIONAL UI AMOUNT IN LACKS(Undergeneration below 49.2 Hz) Adjusted UI amount in lacks w/o capping Adjusted UI amount in lacks with capping NET UI 16 17 18 19 20 21 22 Total

16 UI FOR RPH 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 ADDITIONAL UI AMOUNT IN LACKS( Undergeneration below 49.2 hz) Adjusted UI amount in lacks Adjusted UI amount in lacks with capng NET UI 16 17 18 19 20 21 22 Total

17 UI FOR BTPS Dates Declared Ex-bus Capacity in Mus
Scheduled Ex-bus generation in Mus Actual Ex-bus generation in Mus UI Energy in Mus ADDITIONAL UI AMOUNT IN LACKS( Undergeneration below 49.2 Hz) UI AMOUNT WITH CAPPING Adjusted UI amount in lacks Adjusted UI amount in lacks with capng NET UI 16 17 18 19 20 21 22 Total

18 % of its scheduled drawal 3% on daily aggregate basis
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 drawal MW 3% on daily aggregate basis 1 BRPL 12% 57 3% 2 NDPL 38 3 BYPL 35 4 NDMC 17 5 MES TOTAL 150


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