NYISO Tariffs --> Market Administration and Control Area Services Tariff (MST) --> 26 MST Attachment K - Creditworthiness Requirements For Cust --> 26.13 MST Att K Retention of a Withdrawing Customer’s Collat
RCC = [∑N4 (Avg 4TrueUp *Initial 4 Month)] + [∑NF (AvgFinalTrueUp * Initial Final)](AFA x F) + (ASA x S)
RCC = Retained Customer Collateral. The amount of secured a Customer’s cash deposit or letter of credit to be retained required following the a Customer’s withdrawal from the ISO-Administered Markets.
N4= Each month with an initial settlement without an associated 4 month settlement
NF= Each month with an initial settlement without an associated final bill close-out
Avg4TrueUp = Most recent six month rolling average percentage credit exposure of 4 month settlements to associated initial settlements, not to exceed a market-wide maximum percentage reasonably determined by the ISO
AvgFinalTrueUp= Most recent six month rolling average percentage credit exposure of final bill close-outs to associated 4 month settlements, not to exceed a market-wide maximum percentage reasonably determined by the ISO
Initial 4 Month= Initial settlement for the month N4
Initial Final= Initial settlement for the month NF
F =Number of four-month true-ups remaining until all of the Customer’s monthly invoices are finalized by the ISO.
ASA = Average adjustment to the Customer’s initial invoices in its six-month true-ups calculated over the prior six months.
Effective Date: 2/18/2015 - Docket #: ER15-470-000 - Page 1