Open Access

Open Access in ISTS: CERC OA Regulations 2008 Collective transactions : Both Buyers and Sellers of to bear transmission charges and absorb transmission losses Inter-Regional links -No Separate treatment. Emphasis on “Scheduling” rather than “Reservation” SLDC consent mandated along with application In case of Congestion for Advance Reservation, e-Bidding without Price Cap Exit Option provided with payment of up to 2 days open access charges.

- First Come First Serve - Day ahead - Contingency Open Access in ISTS CERC OA Regulations 2008 Products – Short term Access - Advance - First Come First Serve - Day ahead - Contingency

Deadline for issue of approval by Nodal RLDC Time lines for various Categories of Applications Sl. No. Type of Application Deadline for applying OA required for * Deadline for issue of approval by Nodal RLDC 1 Advance Application 10 days prior to close of Month-1 M2 25th of M1 5days close of Month-1 M3 Last day of M1 Last day of Month-1 M4 5th of M2 2 First Come First Serve FCFS for the same month M1 3 days before start of transaction FCFS 4 days before commencement 28th of M1 3 Day Ahead Day Ahead (Day-1 or 1500 hrs. of Day-3) D4 On D3After receipt of Power Exchange schedules for D-4 4 Contingency After 15hrs on Day-3 or 1.5 hours before start of OA Within 6 blocks before start of OA * M-1 : Month-1 (Current month), M-2- Next month and so on, D-1 Day-1 and so on

Time Line for Advance, FCFS, DA and Contingency Applications 1500hrs 1.5hrs 20 25 5 Deadline for submission of DA Applications for transactions on D0 Processing time for RLDCs Last Day for submission of Applications for transactions in M2, M3, M4 Deadline for submission of Contingency Applications for transactions during D0

Processing of Advance Applications for next 3 months 10/5/1 day (17.30hrs) prior in a month for 2nd/3rd/4th month Dead Line for Receipt of Application Request for Consent from other RLDCs Next Day to due date(12.00hrs) Issue of Consent by RLDC SAME DAY 20.00HRS Next day 12.00hrs Request Applicant for a revised Tr. Cap. Next day 12.00hrs WITHIN 5 DAYS No Check for any Tr. Congestion ? Yes Approval Still Tr. Congestion ? Next day 11.00hrs No Revised MW/Duration by Applicant Yes E-bidding 4th day after due date 3 working days after issue. Commence- ment of Tx. Approval Payment of STOA ch. WITHIN 5 DAYS

Processing of FCFS Applications for next month 5/4 day (17.30hrs) prior in a month for Dead Line for Receipt of Application Request for Consent from other RLDCs Next Day to due date(12.00hrs) Issue of Consent by RLDC SAME DAY 20.00HRS Next day 12.00hrs Approve Applcations received in a day on pro-rata Yes No Check margin is there ? WITHIN 5 DAYS No Any margin left ? Yes 4th day after due date 3 working days after issue. Commence- ment of Tx. Approve Applications Received in next day on pro-rata Payment of STOA ch.

REVISON OF SCHEDULE Only in case of “Advance Scheduling” or “First-Cum-First Served basis” minimum five (2) days notice (5days in 2008 Regn) Transmission Charges and Operating Charges for 2 days (5days in 2008 Regn) Margin Available – could be utilized for scheduling of other Open Access Transactions

CURTAILMENT IN CASE OF TRANSMISSION CONSTRAINTS Allocation/Reallocation of ISGS power Transmission constraint or to maintain grid security curtailed in the manner, which in the opinion of RLDC, would relieve transmission constraints/ enhance grid security Open Access Bilateral Transactions would generally be curtailed first followed by the Collective Transactions Rerouting allowed without curtailment refund of Transmission Charges for unused capacity

COMMERCIAL CONDITIONS All Payment related to Open Access ST Charges by Applicant to the Nodal RLDC within three working days from the date of acceptance Energy charges to be settled among the parties Losses adjusted in kind Application Fees (as per Para 7 of Regulation) non-refundable fee of Rupees five thousand (Rs.5000/-) only Transmission charges (Para 16 of Regulation) Intra-region (Rs.80/MWh) Adjacent Region (Rs. 160/MWh) Wheeling (Rs.240/MWh) STU charges – as specified by respective SERCs or Rs. 80/MWh Operating charges (as per Para 17 of Regulation) Rs. 2000/- per day each RLDCs/SLDCs involved

DISBURSAL OF PAYMENT Disburse the Open Access Charges 10th day of the next month Transmission Charges and Operating Charges – for State System Concerned STUs/SLDCs Refund due to curtailment 15th day of the next month Reconcile the Open Access Charges

OA laid Foundation for Market development STOA – SUCCESS STORY Developed in consultation with all stakeholders Applications Processed (Since Beginning) > 60,000 No. Volume (Approved Energy) (Since Beginning) > 190BUs Applications Approved > 95 % Refusal/Non-consent by SLDCs > 3 - 4 % Refusal due to system constraints < 0.5 % OA laid Foundation for Market development 12

Full utilisation of IR links for STOA STOA – SUCCESS STORY Robust Financial Settlement System Near Dispute free implementation Logistics/infrastructure -In-house Confidence Building & Dissemination of knowledge Full utilisation of IR links for STOA 13

ST charges under OA w.e.f 01.04.11, ST charges as per Point of Connection charge Both seller and buyer to bear losses in kind as per the applicable Zonal losses

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