ABT FOR STAKEHOLDERS IN STATE SYSTEM AN APPROACH
THE STAKE HOLDERS n DISCOMS n GENCO n IPP’S n CPP’S n TRANSCO
DISCOMS- ROLES&RESPONSIBILITIES LOAD FORECASTING FOR THEIR CONTROL AREA n MANAGE LOAD IN REALTIME n ECONOMICALLY COMMIT EMBEDDED GENERATION, IF ANY n ENCOURAGE CPP’S n
TRANSCO- ROLES&RESPONSIBILITIES ‘PASS THROUGH’ ROLE n OPERATE SETTLEMENT SYSTEM n SCHEDULING FUNCTIONS n OPTIMISATION OF RESOURCES n BILATERALS AMONGST DISCOMS, GENCO’S /IPP’S UNREQUISITIONED POWER n INTER REGIONAL BILATERALS IN CONSULTATION WITH SRLDC n FACILITATOR n
GENCO- ROLES&RESPONSIBILITIES DECLARE AVAILABILITY n CO-ORDINATE WITH DISCOMS/ TRANSCO FOR MAINTENANCE SCHEDULES n AGGRESSIVE MAINTENANCE METHODS n KEEP VARIABLE COSTS LOW n
IPP’S SIMILAR TO GENCO IF THE ARE NOT EMBEDDED n IF EMBEDDED, DISCOMS WOULD SCHEDULE n VARIABLE COSTS – THE DECIDING FACTOR n
THE REGULATOR
WHAT NEEDS TO BE DONE INFRASTRUCTURE METERING TO BE ESTABLISHED n TELEMETRY AND CONTROL CENTRES IN EACH DISCOMS WITH ADEQUATE COMMUNICATION n n n MAY ‘PIGGY-BACK’ ON ULDC SYSTEM AT FIRST SETTLEMENT SYSTEM - INFRASTRUCTURE
WHAT NEEDS TO BE DONE -SYSTEM n n ALLOCATIONS TO BE MADE TREATMENT OF n n PUMPED STORAGE n n IRRIGATION HYDRO IPP’S BILATERALS DESPATCHED BY APTRANSCO ON UI BASIS RUN LIKE A PROFIT CENTRE/CONTROL SREA SETTLEMENT SYSTEM TO BE FINALISED UI RATE TO BE DECIDED
ALLOCATION TABLE (MW) SAMPLE FOR AP SYSTEM DISCOM VTS RYTPS RTS-B INSTALLED CAP (MW) 1260 1000 1170 420 62. 5 30 3963 9 4 593 29 14 1852 9 4 555 15 7 963 SIMHADRI KTS EPDCL 188 150 175 CPDCL 589 467 547 NPDCL 177 140 164 SPDCL 306 243 284 n 63 196 59 102 ALLOCATION OF HYDRO NTS TOTAL
‘ABT’ LIKE MECHANISM FOR DISCOMS n n n n GENCO GIVES STATION WISE AVAILABILITY FOR DAY AHEAD TRANSCO RECIEVES ISGS AVAILABILITY FOR THE DAY AHEAD TRANSCO BROADCASTS THE SAME TO DISCOMS REVERT BACK WITH REQUISITIONS TRANSCO FINALISES AFTER DUE CONSIDERATION AND ECONOMISING INFORMS ISGS REQUISITIONS TO RLDC. BROADCASTS FINAL SCHEDULE TO DISCOMS
‘ABT’ LIKE MECHANISM FOR DISCOMS: COMPLEXITIES n NUMBER OF DISCOMS, IPP’S, GENCO n n n n MANY TIE-LINES TO BE MONITORED METERING FOR GENERATORS. LARGE NUMBER OF ENERGY METERS WOULD BE REQUIRED RATIONALISED MAINTENANCE OF GENERATORS DILUTION IN MARKET POWER UI RATE – TO REFLECT ‘LOCAL’ FACTORS? IPP’S n n LARGE IPP’S CAN BE TREATED AT PAR WITH GENCO UNITS SMALL IPP’S CAN BE EMBEDDED PPA’S HAVE TO BE REWORKED IRRIGATION HYDRO – TO BE INSULATED?
ADVANTAGES n ECONOMIC OPERATION n n n n CHEAPER GENERATORS ARE ENCOURAGED ONUS ON DISCOMS TO MANAGE LOADS REALISTIC REQUISITIONS CAPTIVES AND IPP’S HARNESSED INTER DISCOM BILATERALS GENCO MAINTENANCE SCHEDULES WOULD BE AGRESSIVE CONTROL OVER UI QUANTUM(HEAVY UNDER/OVER DRAWALS WOULD BE THING OF THE PAST)
POWERGRID’S STRENGTHS n n n ABT SCHEME IN IMPLEMENTED AND OPERATIONAL IN ALL REGIONS ABOUT XXXX SPECIAL ENERGY METERS ALREADY IN PLACE. EXPERIENCE IN HANDLING THE SETTLEMENT SYSTEM SCHEDULING PROCESS AUTOMATED IN SOUTHERN REGION WITH IN-HOUSE SOFTWARE METER READING PROCESSING, CHECKING ETC ALSO AUTOMATED
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