Market-Based Rate Authorization for Battery Energy Storage Systems
Summary
FERC's Office of Energy Market Regulation issued a letter order accepting market-based rate authority filings from Vaca Dixon BESS LLC and Arges BESS LLC. The order approves tariffs under dockets ER26-729 and ER26-730, granting the battery energy storage systems authorization to sell power at market-based rates. This is a routine administrative acceptance of a completed application process.
What changed
FERC issued a delegated order on April 6, 2026, accepting market-based rate filings submitted by Vaca Dixon BESS LLC and Arges BESS LLC on December 11, 2025, as amended on February 10, 2026. The order grants market-based rate authority under dockets ER26-729 and ER26-730, allowing these battery energy storage system entities to charge market-based rates for power sales under approved tariffs.
No immediate action is required by market participants. This is a routine acceptance of a completed application demonstrating the applicants satisfy FERC's market power analysis requirements. Energy companies operating or planning battery storage assets seeking market-based rate authority should ensure applications include appropriate market power studies and tariff schedules consistent with FERC requirements.
Archived snapshot
Apr 6, 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: 20260406-3015
Details Document: 04/06/2026
Filed: 04/06/2026
Posted: 04/06/2026 10:55:30 AM
First Received Date: 04/06/2026 10:44:27 AM
Security Level: Public
Official: Yes
E-filing: No
Non-decisional: No
Category: Issuance
Library: Electric
Aperture: 0
File Type:
Description* :** Letter order accepting Vaca Dixon BESS LLC's et al. 12/11/2025, as amended on 02/10/2026, filing of an application for market-based rate authority with accompanying tariffs under ER26-729 et al.
File List
| Docket | Sub-Docket | Type |
| --- | --- | --- |
| ER26-729 | 000 | On Document |
| ER26-729 | 001 | On Document |
| ER26-730 | 000 | On Document |
| ER26-730 | 001 | On Document |
| Document Class | Document Type |
| --- | --- |
| Order/Opinion | Delegated Order |
| Correspondent | Last Name | First Name | MI | Role/Org |
| --- | --- | --- | --- | --- |
| RECIPIENT | * | * | | VACA DIXON BESS LLC |
| RECIPIENT | * | * | | ARGES BESS LLC |
| AUTHOR | Poré | A | S | OFFICE OF ENERGY MARKET REGULATION |
Named provisions
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