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Settlement systems under ABT

Settlement systems under ABT. WHAT IS SETTLEMENT ?. Settlement means “Entire process of payment/ receipt/ adjustment/ reconciliation for the commodity/ services bill for the period under consideration” To be FAIR and EQUITABLE

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Settlement systems under ABT

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  1. Settlement systems under ABT

  2. WHAT IS SETTLEMENT ? • Settlement means “Entire process of payment/ receipt/ adjustment/ reconciliation for the commodity/ services bill for the period under consideration” • To be FAIR and EQUITABLE • To RECOVER DUES at the EARLIEST (Billing Cycle) • TRANSPERANCY • Dispute Resolution • Reconciliation

  3. Settlement Principles As per Regulations • What charges to be settled ? …. • Who will collect ? • Billing @ What periodicity? (Billing Cycle) • Bill date • Due Date for allowing Rebate • Due Date for Levying Surcharge • Rebate Rate • Surcharge rate As per BPSA/ PPA/ BPTA / Regulations • Payment Security Mechanism • Arbitration • Dispute Resolution • Legal Jurisdiction

  4. Receipts by the Generator • Capacity Charge based on declared generation availability. • Energy charges for the energy requisitioned/ scheduled. • UI charges (at low frequency operation): If UI is positive generator will receive. AG > SG If UI is negative generator will pay. AG < SG (This will be worked out for each time block) Receipts = A+B±C+incentive..

  5. Payment by the beneficiaries A. Capacity charge in proportion to the Entitlement (shares) of the declared availability. B. Energy charge for the energy scheduled by the constituent. • UI charges (During low frequency operation): If UI is negative beneficiary will receive. AD < SD If UI is positive beneficiary will pay. AD > SD (This will be worked out for each time block ) payments=A+B±C+ proportionate incentive.

  6. Unscheduled Interchange (UI) • A generator generates more than the schedule, thereby increasing the frequency. • A generator generates less than the schedule, thereby decreasing the frequency. • A beneficiary overdraws power, thereby decreasing the frequency. • A beneficiary underdraws power, thereby increasing the frequency. Incetivise Help to Grid Penalise Hurt to Grid

  7. SETTLEMENT SYSTEM Total capacity charge payable to CGS-1 for the day = x1 * capacity charge rate of CGS-1 Total Energy charge payable to CGS-1 for the day = x1’ * Energy charge rate of CGS-1 4 Total capacity charge payable by SEB-A for the day = a1 * capacity charge rate of CGS-1 + a2 * -do- CGS-2 + a3 * -do- CGS-3 Total Energy charge payable by SEB-A for the day = (a1’) * Energy charge rate of CGS-1 ( 4 ) + (a2’) * -do- CGS-2 ( 4 ) + (a3’) * -do- CGS-3 ( 4 ) All capacity charge and Energy charge payments to be made by SEBs directly to CGS. SRLDC/Comml/IEGC/38

  8. SETTLEMENT SYSTEM Actual (metered) injection of CGS-1 in the time block = X1MWh. Excess injection = (X1 – x1’ ) MWh. 4 Amount payable to CGS-1 for this =(X1-x1’) * pool price for the block. 4 SEB-A’s scheduled drawl for time block = a1’+a2’+a3’ = a’ MW (ex-CGS Bus) SEB-A’s NET drawal schedule = (a’ – Notional Transm. Loss) MW = (a’ – Notional Transm. Loss)= A’ MWH 4 Actual (metered) net drawal of SEB-A during time block = A MWH Excess drawal by SEB-A = (A-A’) MWh. Amount payable by SEB-A for this = (A-A’) * pool price for the block. All above payments for deviations from schedules to be routed through a pool A/C operated by RLDC SRLDC/Comml/IEGC/39

  9. UI - A RATIONAL AND SCIENTIFIC VECTOR • BALANCING MARKET • MERIT ORDER OPERATION • TRANSPARENCY • NEUTRALITY • SIMPLICITY • PRICE SIGNAL EASILY AVAILABLE • NO NEED TO NEGOTIATE ANY PRICE • EASY SETTLEMENT • EASY TO UNDERSTAND AND IMPLEMENT • EASE OF REGULATION

  10. Energy Charges Energy Charges =Rate of Energy Charges x Schedule.Generation (Ex-Bus) Unscheduled Interchange (UI) Variation in actual Generation / Drawal and Scheduled Generation / Drawal shall accounted for through U.I UI for Generator = Actual Generation – Scheduled Generation UI for Beneficiaries = Total Actual drawal – Total Scheduled Drawal UI worked out for 15 minutes time block.

  11. 1000 MW Forecast ex-bus capability of power plant 800 Declared Capability for which Capacity charges Are recieveable by ISGS Gen.Sched. for which Energy charges Are recieavable by ISGS 600 SEB - A’s entitlement (40%) 400 200 0 0 6 12 18 HRS 24 Schedule for which Energy charges Are payable by SEB- A Entitlement for which Capacity charges Are payable by SEB-A

  12. Schedule, Actual & UI Unscheduled Interchange

  13. Slope 47.0 ps/ u UI rates specified for 49.5-50.2 Slope 15.5 ps/ u

  14. Billing and Payment of UI • UI charges inherent part of Tariff – not a penalty • UI charge is settled through on weekly basis • RPC issues the account statement every Tuesday for previous 2 week period • Due date for payment 10 days after issue of a/c • Disbursement to receivables within 2 days thereafter

  15. Under drawl by SEB-A Over Gen. By ISGS-1 UI import from IR-1 Regional Pool System frequency UI Rate Under gen. By ISGS-2 UI Export to IR-2 Over drawl by SEB-B No one to onecorrespondence Energy transactions of UI from/to Pool

  16. Operation of Pool Separate Pool a/cs operated by RLDCs on behalf of REBs for UI, IRE and Reactive charges Payable by SEB-B Payable by IR-2 at its UI rate Payable by ISGS-2 Regional Pool Receivable by ISGS-1 (up to DC) Receivable by IR-1 at its UI rate Receivable by SEB-A No one to one correspondence No cross adjustments allowed between the constituents

  17. Summary of Settlement Note : All the above charges except UI charges are based only on paper calculations. Only UI charges are based on actual meter readings

  18. UI IN SR (FROM 01/01/03 TO 01/05/2011) OVERVIEW TOTAL UI TURNOVER :- 27,275 MU TOTAL UI AMOUNT DISBURSED:- 9,832 CR AVG WEEKLY TRANSACTION:- 63 MU AVG WEEKLY UI AMOUNT DISBURSED:- 23 CR

  19. SUMMARY OF SR UI – 435 WKS(FROM 01/JAN/03 TO 01/MAY/11)

  20. UI EXCHANGES AND AVG. RATES IN RESPECT OF DIFFERENT CONSTITUENTS IN SR FOR THE PERIOD FROM 01/JAN/03 TO 01/MAY/11 2607MU 3765MU 4827MU 254MU 7455MU 2117MU 7755MU 279MU 9704MU 3396MU AP KAR KER TN PON 7769MU 1879MU 1177MU 1760MU 635MU

  21. IR EXCHANGES OF SR IN THE FORM OF UI TILL 05-DEC-2010 (414 WEEK) Note: From 03.05.10, SRPC is computing the inter-regional UI of SR on NEW grid frequency.

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