FERC Accepts CAISO Avangrid EIM Cancellation

FERC eLibrary: All Orders - ChangeBridge

Published April 2nd, 2026

Detected April 3rd, 2026

Summary

The Federal Energy Regulatory Commission issued a letter order accepting the California Independent System Operator Corporation's February 27, 2026 filing of Notice of Cancellation of the Energy Imbalance Market Implementation Agreement with Avangrid Renewables LLC. The acceptance affects multiple related dockets spanning ER26-1535 through ER26-1554, formalizing the termination of Avangrid's participation in the CAISO EIM.

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What changed

FERC's Office of Energy Market Regulation issued a delegated order accepting CAISO's notice to cancel the EIM Implementation Agreement with Avangrid Renewables. The acceptance covers 14 related dockets (ER26-1535 through ER26-1554), formally recognizing the termination of Avangrid's Energy Imbalance Market participation. This is a routine administrative acceptance with no new obligations imposed.

No compliance actions are required from other market participants. CAISO should update its EIM participant records to reflect the removal of Avangrid Renewables. The cancellation has no impact on other EIM participants and does not trigger any reporting or transition requirements for remaining market members.

What to do next

Update internal EIM participant records to reflect Avangrid Renewables removal
Retain documentation of cancelled agreement for records

Source document (simplified)

Document Info for Accession Number: 20260402-3009

Details Document: 04/02/2026
Filed: 04/02/2026
Posted: 04/02/2026 08:55:49 AM
First Received Date: 04/02/2026 08:31:33 AM
Security Level: Public
Official: Yes
E-filing: No
Non-decisional: No
Category: Issuance
Library: Electric
Aperture: 0
File Type:
Description* :** Letter order accepting the California Independent System Operator Corporation's 02/27/2026 filing of Notice of Cancellation of EIM Implementation Agreement with Avangrid Renewables; etc. under ER26-1535 et al.
File List

| Docket | Sub-Docket | Type |
| --- | --- | --- |
| ER26-1535 | 000 | On Document |
| ER26-1536 | 000 | On Document |
| ER26-1537 | 000 | On Document |
| ER26-1539 | 000 | On Document |
| ER26-1540 | 000 | On Document |
| ER26-1541 | 000 | On Document |
| ER26-1542 | 000 | On Document |
| ER26-1544 | 000 | On Document |
| ER26-1546 | 000 | On Document |
| ER26-1549 | 000 | On Document |
| ER26-1550 | 000 | On Document |
| ER26-1552 | 000 | On Document |
| ER26-1553 | 000 | On Document |
| ER26-1554 | 000 | On Document |

| Document Class | Document Type |
| --- | --- |
| Order/Opinion | Delegated Order |

| Correspondent | Last Name | First Name | MI | Role/Org |
| --- | --- | --- | --- | --- |
| RECIPIENT | * | * | | CALIFORNIA INDEPENDENT SYSTEM OPERATOR CORPORATION |
| AUTHOR | Poré | A | S | OFFICE OF ENERGY MARKET REGULATION |