June 19, 2017
By Electronic Delivery
Honorable Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street, NE
Washington, DC 20426
Re: New York Independent System Operator, Inc.’s Informational Filing Regarding
the Simultaneous Import Limitation Study, Docket No. AD10-2-008
Dear Secretary Bose:
In accordance with Commission Order No. 6971 and Commission staff direction, the New
York Independent System Operator, Inc. (“NYISO”) respectfully submits, for informational
purposes, an amended presentation titled “NYISO 2015 Simultaneous Import Limit
Determination,” dated June 15, 2017.2 The data in this presentation was compiled by the NYISO
in order to assist the New York Transmission Owners in fulfilling their obligations associated
with Commission Order No. 697. This presentation details the NYISO seasonal Simultaneous
Import Limits for 2015, along with the methodology used in developing these limit levels.
The NYISO also submits herewith an affidavit of Allen Hargrave. The affidavit
describes how the NYISO develops Total Transfer Capability (“TTC”) values, Transmission Reliability Margin (“TRM”) values, and Available Transfer Capability (“ATC”) values for External Interfaces and Scheduled Lines.
1 Market-Based Rates for Wholesale Sales of Electric Energy, Capacity And Ancillary Services By Public Utilities, Final Rule, Order No. 697, 119 FERC ¶ 61,295 (June 21, 2007).
2 The NYISO submitted the original presentation titled “NYISO 2015 Simultaneous Import Limit Determination” in this docket on December 19, 2016.
