MISO Tariff Methodology Revisions Accepted
Summary
FERC issued Letter Order 195FERC61,011 accepting Midcontinent Independent System Operator, Inc.'s proposed revisions to its Open Access Transmission, Energy and Operating Reserve Markets Tariff under docket ER26-1264. The revisions include new methodology provisions filed by MISO on February 4, 2026. This acceptance order affects MISO market participants and transmission service providers in the MISO region.
What changed
FERC accepted MISO's tariff methodology revisions filed under ER26-1264 on April 3, 2026. The order approves inclusion of the proposed methodology changes in MISO's Open Access Transmission, Energy and Operating Reserve Markets Tariff. This is a routine acceptance of tariff provisions by the Commission.
MISO market participants and transmission customers should review the accepted methodology revisions to ensure continued compliance with tariff requirements. As this is an acceptance order rather than a proposed rule, no comment period applies. Entities should monitor MISO communications for implementation details regarding the accepted methodology changes.
What to do next
- Review accepted tariff methodology revisions for operational impact
- Update internal compliance procedures to align with new tariff provisions
- Monitor MISO communications for implementation guidance
Archived snapshot
Apr 4, 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: 20260403-3017
Details Document: 04/03/2026
Filed: 04/03/2026
Posted: 04/03/2026 09:35:05 AM
First Received Date: 04/03/2026 09:18:21 AM
Security Level: Public
Official: Yes
E-filing: No
Non-decisional: No
Category: Issuance
Library: Electric
Aperture: 0
File Type:
Description* :** Letter order accepting Midcontinent Independent System Operator, Inc.'s 02/04/2026 filing of proposed revisions to its Open Access Transmission, Energy and Operating Reserve Markets Tariff to include in the Tariff the methodology etc. under ER26-1264.
File List
| Docket | Sub-Docket | Type |
| --- | --- | --- |
| ER26-1264 | 000 | On Document |
| Document Class | Document Type |
| --- | --- |
| Order/Opinion | Commission Order/Opinion |
| Correspondent | Last Name | First Name | MI | Role/Org |
| --- | --- | --- | --- | --- |
| AUTHOR | CLAY | C | D | SECRETARY OF THE COMMISSION, FERC |
| RECIPIENT | * | * | | MIDCONTINENT INDEPENDENT SYSTEM OPERATOR, INC. |
| AUTHOR | * | * | | COMMISSIONERS AND IMMEDIATE STAFF (THE COMMISSION) |
| Associate Type | Associate Numbers |
| --- | --- |
| Ferc Cite Number | 195FERC61,011 |
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