US Federal Regulation
Order No. 917; Filing Process and Data Collection for the Electric Quarterly Report
This item sits inside Zelica’s Battery & Grid Storage house board.
Key metadata
- Document number
- 2026-05709
- Type
- Rule
- Publication date
- 2026-03-24
- Effective date
- 2026-05-26
- Agencies
- Energy Department, Federal Energy Regulatory Commission
- CFR references
- 18 CFR part 35
- Original source
- Federal Register
FERC EQR Data Modernization & RTO Reporting, May 26, 2026, US
FERC has issued a final rule to significantly update how wholesale electricity market data is reported, effective May 26, 2026. The key changes include: 1. New Data Standard: All Electric Quarterly Reports (EQRs), which detail wholesale power transactions, must now be filed using the eXtensible Business Reporting Language-Comma-Separated Values (XBRL-CSV) standard. This is a technical update aimed at improving data quality and streamlining future reporting. 2. RTO/ISO Transaction Data: Regional Transmission Organizations (RTOs) and Independent System Operators (ISOs) will now be required to produce new reports containing detailed market participant transaction data. This is a significant increase in transparency.
Why it matters
Increased Market Transparency: The new RTO/ISO reporting requirement means more granular and standardized data will be available on how all market participants, including battery storage assets, are transacting in wholesale markets. This can provide valuable insights into market opportunities, pricing, and the operational patterns of storage. Informed Decision-Making: Better quality and more accessible data can help identify grid needs, inform future market design changes that benefit storage, and support strategic planning for grid infrastructure and transmission expansion. Competitive Intelligence: Understanding market dynamics through this enhanced data can help battery storage developers and operators optimize their strategies and demonstrate the value of their assets.
Who is affected
Public utilities (who file EQRs), and critically, RTOs/ISOs who must generate the new transaction reports. All market participants, including battery storage companies, will see their transaction data become more transparent through these RTO/ISO reports.
Key timing
The rule is effective May 26, 2026, providing a substantial lead time for implementation.
Want the broader context around this item? The Battery & Grid Storage board combines curated notes, trackers, and linked signals in one working view.