Docket No. ER21-1283-000 1

FEDERAL ENERGY REGULATORY COMMISSION

WASHINGTON, DC 20426

OFFICE OF ENERGY MARKET REGULATION

New York Independent System Operator, Inc.
Niagara Mohawk Power Corporation

Docket No. ER21-1283-000

Issued: May 3, 2021

Sara B. Keegan

New York Independent System Operator, Inc.

10 Krey Boulevard

Rensselaer, NY 12144

Christopher J. Novak

National Grid

40 Sylvan Road

Waltham, MA 02451

Reference:Transmission Project Interconnection Agreement - Service Agreement No. 2599

On March 5, 2021, New York Independent System Operator, Inc. (NYISO) and Niagara Mohawk Power Corporation (NMPC) d/b/a National Grid (together, Joint Filing Parties) submitted for filing an executed Transmission Project Interconnection Agreement (Interconnection Agreement) entered into by NYISO, National Grid, and New York Transco, LLC, designated as Service Agreement No. 2599 under the NYISO’s Open Access Transmission Tariff (OATT).[1] You state that the Interconnection Agreement is based on and consistent with the pro forma Large Generator Interconnection Agreement contained in Attachment X to the OATT, as modified to address a Transmission Project. You request that the Interconnection Agreement be accepted effective February 19, 2021.

Pursuant to the authority delegated to the Director, Division of Electric Power Regulation – East, under 18 C.F.R. § 375.307, your submittal is accepted for filing, effective February 19, 2021, as requested.[2]

The filing was noticed on March 5, 2021, with comments, interventions, and protests due on or before March 26, 2021. Pursuant to Rule 214 (18 C.F.R. § 385.214), to the extent that any timely filed motions to intervene and any motion to intervene out-of-time were filed before the issuance date of this order, such interventions are granted. Granting late interventions at this stage of the proceeding will not disrupt the proceeding or place additional burdens on existing parties.

This acceptance for filing shall not be construed as constituting approval of the referenced filing or of any rate, charge, classification, or any rule, regulation, or practice affecting such rate or service contained in your filing; nor shall such acceptance be deemed as recognition of any claimed contractual right or obligation associated therewith; and such acceptance is without prejudice to any findings or orders which have been or may hereafter be made by the Commission in any proceeding now pending or hereafter instituted by or against Joint Filing Parties.

This order constitutes final agency action. Requests for rehearing by the Commission may be filed within 30 days of the date of issuance of this order, pursuant to 18 C.F.R. § 385.713.

Issued by: Kurt M. Longo, Director, Division of Electric Power Regulation – East