NYISO Deficiency Letter - Additional Information Required Within 30 Days
Summary
FERC's Office of Energy Market Regulation issued a deficiency letter to the New York Independent System Operator, Inc. stating that the February 18, 2026 filing under docket ER26-1431 is deficient and requires additional information to be filed within 30 days.
What changed
FERC notified NYISO that its February 2026 filing under ER26-1431 is deficient and requested supplemental information within 30 days. The deficiency letter is a standard procedural step in FERC's review of proposed electric rate revisions.
NYISO must compile and submit the required additional information to FERC before the agency can continue processing the proposed rate revisions. Failure to respond may result in dismissal or further procedural action on the filing.
What to do next
- Submit requested additional information to FERC within 30 days
Archived snapshot
Apr 10, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Document Info for Accession Number: 20260410-3020
Details Document: 04/10/2026
Filed: 04/10/2026
Posted: 04/10/2026 11:19:07 AM
First Received Date: 04/10/2026 11:02:51 AM
Security Level: Public
Official: Yes
E-filing: No
Non-decisional: No
Category: Issuance
Library: Electric
Aperture: 0
File Type:
Description* :** Letter informing New York Independent System Operator, Inc. that the 02/18/2026 filing is deficient and requesting additional information to be filed within 30 days to assist in processing its proposed revisions etc. under ER26-1431.
File List
| Docket | Sub-Docket | Type |
|---|---|---|
| ER26-1431 | 000 | On Document |
| Document Class | Document Type |
|---|---|
| FERC Correspondence With Applicant | Deficiency Letter |
| FERC Correspondence With Applicant | Request for Additional Information |
| Correspondent | Last Name | First Name | MI | Role/Org |
|---|---|---|---|---|
| RECIPIENT | Nielsen | H | S | NEW YORK INDEPENDENT SYSTEM OPERATOR, INC. |
| AUTHOR | Khammal | L | OFFICE OF ENERGY MARKET REGULATION |
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