FEDERAL ENERGY REGULATORY COMMISSION
WASHINGTON, DC 20426

OFFICE OF ENERGY MARKET REGULATION

New York Independent System

Operator, Inc.

Docket No. ER21-890-000

Issued: 3/8/2021

David Allen

New York Independent System Operator, Inc.

10 Krey Boulevard

Rensselaer, NY 12144

Reference:   Clarification to Tailored Availability Metric Tariff Provisions

On January 15, 2021, the New York Independent System Operator, Inc. (NYISO)
filed revisions to its Market Administration and Control Services Tariff that provide
clarity to its tailored availability metric rules (TAM Rules).1  The proposed tariff
revisions clarify that the TAM Rules do not apply to Special Case Resources and that
new metrics will apply to all Intermittent Power Resources, which include landfill gas
resources.

Pursuant to the authority delegated to the Director, Division of Electric Power Regulation - East, under 18 C.F.R. § 375.307 (2020), your submittal is accepted for filing, effective March 17, 2021, as requested.

The filing was noticed on January 15, 2021, with comments, interventions, and

protests due on or before February 5, 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 outof-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

1 New York Independent System Operator, Inc., NYISO Tariffs, NYISO MST,

5.12 MST Requirements Applicable to Installed Capacity Suppl, 36.0.0.

Docket No. ER21-890-000- 2 -

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 the applicant.

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