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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 30.03.2009 APPLICABLE FROM 01.04.2009. STATE LOAD DESPATCH CENTRE

2 IMPLICATION OF NEW UI REGIME AS PER CERC REGULATION DATED 30.03.2009 APPLICABLE FROM 01.04.2009. SN.Prior to 31.03.2009After 31.03.2009 1Frequency 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 30.03.2009 APPLICABLE FROM 01.04.2009. S N.Prior to 31.03.2009After 31.03.2009 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. 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. 571.20Ps/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 30.03.2009 APPLICABLE FROM 01.04.2009. S. N.Prior to 31.03.2009After 31.03.2009 5Reporting 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 30.03.2009 APPLICABLE FROM 01.04.2009. S. N.Prior to 31.03.2009After 31.03.2009 5Reporting 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 30.03.09 (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 04.04.07 & 10.04.08 (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.STN0.000004.48651-0.055314.431202.83652-1.594670.296683.13321 2RPH0.000000.50689-19.76073-19.25384-20.55811-1.304270.23173-20.32638 3G.T.STN.7.450120.000001.76994-5.68018 1.10004-4.58015 IPGCL7.450124.99340-18.04610-20.50282-17.72158-2.898941.62845-21.77332 4PRAGATI28.927970.00000-0.84073-29.76870 0.36799-29.40071 5BTPS77.955330.00000-2.09058-80.04591-59.3587420.687170.31128-59.04746 6BYPL390.342900.00000-21.09753-411.44042 6.84912-404.59131 7BRPL0.0000098.66108-3.0808495.58024 23.93787119.51811 8NDPL0.00000242.90314-48.87707194.02607 16.35791210.38398 9NDMC679.800170.00000-34.48776-714.28793 0.67764-713.61029 10MES173.652560.00000-6.54346-180.19603 0.00000-180.19603 TOTAL1358.12906346.55762-135.06407-1146.63550 17.7882250.13025-1078.71703

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.STN0.000003.13321 2RPH20.326380.00000-20.32638 3G.T.STN.4.580150.00000-4.58015 IPGCL24.906523.13321-21.77332 4PRAGATI29.400710.00000-29.40071 5BTPS59.047460.00000-59.04746 6BYPL404.591310.00000-404.59131 7BRPL0.00000119.51811 8NDPL0.00000210.38398 9NDMC713.610290.00000-713.61029 10MES180.196030.00000-180.19603 11Regional UI NRPC0.000001146.63550 12Pool balance of additional UI50.130250.00000-50.13025 13Pool balance of capping17.788220.00000-17.78822 TOTAL1479.67079 0.00000

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 1614.43627214.7156960.279424-1.93440-2.086630.0000000.00000-2.08663 1714.72836215.2716710.54330924.0693431.912070.0438921.2904333.20250 1814.80616715.1437020.33753518.70487-4.353490.0913152.68465-1.66884 1914.61915015.3117100.69256039.4376021.370230.0291160.8560222.22624 2013.79803415.3066901.50865689.4835492.784430.1588694.6707697.45519 2114.13921114.5150270.37581617.7205413.963590.0533541.5686015.53219 2213.39455214.3211080.92655655.4216540.435870.1798455.2874545.72332 Total99.921749104.5856054.663856242.90314194.026070.55639116.35791210.38398

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 1620.36343019.930210-0.433220-2.87814-3.104630.0055480.16311-2.94152 1719.71102919.7138340.00280524.3823432.327060.0715592.1038334.43089 1820.73751920.102294-0.635226-6.72302-7.437900.1176763.45967-3.97823 1920.18705819.818130-0.368928-5.00688-5.436620.0368401.08311-4.35352 2018.81871919.4023140.58359440.3037341.790460.1374754.0417545.83222 2119.03027319.4851700.45489834.1782126.932040.0377191.1089428.04098 2218.06382718.0902930.02646614.4048410.509840.40739611.9774522.48728 Total136.911855136.542245-0.36961098.6610895.580240.81421323.93787119.51811

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 1613.79334511.406992-2.386352-113.64509-122.588370.0000000.00000-122.58837 1712.07792411.195310-0.882615-47.76829-41.044990.0000000.00000-41.04499 1813.13300111.786996-1.346005-65.38624-72.338960.0000000.00000-72.33896 1912.77337711.735454-1.037923-52.93906-57.482790.0063280.18604-57.29675 2011.82648511.676766-0.149720-6.88711-6.600800.0536821.57825-5.02255 2112.13359711.622033-0.511564-35.01408-36.971990.0479391.40942-35.56257 2212.41163611.090471-1.321165-68.70303-74.412520.1250143.67540-70.73712 Total88.14936680.514022-7.635344-390.34290-411.440420.2329636.84912-404.59131

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 165.0255172.566659-2.458858-101.86160-109.877580.0000000.00000-109.87758 173.5646522.559847-1.004805-52.12713-44.790330.0212990.62620-44.16414 184.6572952.610010-2.047285-108.18179-119.685080.0000000.00000-119.68508 194.4346722.567762-1.866910-102.74910-111.568010.0000000.00000-111.56801 203.8640922.543885-1.320207-75.19731-72.071280.0017500.05144-72.01984 214.2815392.234281-2.047258-121.61368-128.414050.0000000.00000-128.41405 224.0143341.953063-2.061271-118.06956-127.881600.0000000.00000-127.88160 Total29.84210217.035507-12.806595-679.80017-714.287930.0230490.67764-713.61029

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 161.0309150.527369-0.503546-19.13828-20.644360.0000000.00000-20.64436 171.0284910.519858-0.508633-24.72170-21.242160.0000000.00000-21.24216 181.0566620.519627-0.537035-26.60829-29.437630.0000000.00000-29.43763 191.0073100.500870-0.506440-26.37728-28.641230.0000000.00000-28.64123 200.8120880.482978-0.329110-18.16691-17.411700.0000000.00000-17.41170 210.8928620.449887-0.442975-25.54169-26.969920.0000000.00000-26.96992 221.0239000.433735-0.590165-33.09842-35.849030.0000000.00000-35.84903 Total6.8522273.434324-3.417903-173.65256-180.196030.0000000.00000-180.19603

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 164.6360004.0432564.1107420.067486 -2.80211 0.03077-3.02262-2.99186 174.5425003.5725203.273184-0.299336 7.81121 0.0000010.35641 184.1340002.993444 0.000000 0.00000 193.8100003.2994093.3630000.063591 -3.49528 0.00000-3.79528 203.6840003.1313983.1830170.0516190.048755-3.13507-2.969230.06890-2.84580-2.77690 214.2047503.2172663.2897940.072528 -4.41397 0.00845-4.66078-4.65234 223.3300002.7502362.8258610.0756250.041483-3.39022-1.580740.99193-1.71211-0.72018 Tota l28.34125023.00752923.0390420.031513-0.005494-9.42543-7.450121.10004-5.68018-4.58015

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 165.7920005.6844505.7950400.110590 -3.53735 0.00000-3.81572 174.7340004.6867914.7761680.089377 -4.88030 0.00000-4.19341 184.7350004.6871694.7767740.0896050.088879-6.17279-6.124150.00000-6.77535 194.7520004.6988924.7665800.0676880.067687-4.29028 0.00000-4.65851 204.8000004.7400004.8082380.068238 -3.70784 0.08208-3.55370-3.47162 214.8350004.6690324.7587860.089754 -5.40414 0.01139-5.70632-5.69494 223.1867503.1445703.1627020.018132 -0.98391 0.27452-1.06568-0.79116 Total32.83475032.31090432.8442880.5333840.532657-28.97661-28.927970.36799-29.76870 - 29.40071

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 161.644500 1.6589050.0144050.0109600.00547-0.651041-0.508745-0.50328 171.908417 1.840495-0.067921-0.0686180.083255.4079303.7277423.81100 182.254083 2.243157-0.010926-0.0111490.07170-0.175305-0.184127-0.11242 192.251000 2.2660780.0150780.0143870.01968-0.860564-0.607617-0.58794 202.214417 2.2259700.0115540.0064740.00733-0.343814-0.243168-0.23584 212.001333 1.998300-0.003034-0.0050890.042070.3482020.1710540.21313 221.804000 1.787992-0.016008-0.0163370.067170.7057880.4813860.54856 Total14.077750 14.020899-0.056851-0.0693720.296684.431202.836523.13321

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 162.208000 2.198263-0.009737 0.00000-20.45162-21.65065 172.208000 2.159098-0.048902 0.163953.391222.483942.64790 182.212500 2.210211-0.002289 0.03323-0.00441-0.026330.00690 192.208000 2.2094880.001488 0.00000-0.27186-0.14904 202.208000 2.2192230.011223 0.00667-0.76728-0.45285-0.44618 212.228000 2.2311140.003114 0.00955-0.15399-0.12367-0.11412 222.208000 2.2225610.014561 0.01833-0.99590-0.63951-0.62118 Total15.480500 15.449958-0.030542 0.23173-19.25384-20.55811 - 20.32638

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 1615.38875014.82625015.1542600.3280100.00000-11.73851-15.181922-12.728946-12.72895 1715.60000015.25625015.6870240.4307740.04419-13.35715-13.849539-11.478003-11.43381 1815.55625015.52500015.7711440.2461440.00807-8.04483-14.137479-9.001220-8.99315 1915.57650015.45650015.7586880.3021880.07429-10.86938-15.855329-11.928347-11.85405 2011.993750 12.1279560.1342060.00850-4.16028-6.785170-4.044691-4.03619 2113.276250 13.4793240.2030740.00000-4.23386-6.668422-4.493547-4.49355 2214.922000 15.0881280.1661280.17622-5.22518-7.568047-5.683988-5.50777 Total102.313500101.256000103.0665241.8105240.31128-57.62919-80.04591-59.35874-59.04746

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. 01.04.09 TO 20.04.09 AS PER DERC ORDER DATED 21.04.09 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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