On 26 March 2026, ACER released important updates to its REMIT framework, including revisions to the Manual of Procedures (MoP) and the FAQs on inside information reporting.
On 26 March 2026, ACER released important updates to its REMIT framework, including revisions to the Manual of Procedures (MoP) and the FAQs on inside information reporting.
Under REMIT, inside information is defined as information that is:
Typical examples include outages, maintenance events, or disruptions affecting electricity or gas infrastructure.
Timely and accurate disclosure ensures a level playing field for all market participants and strengthens market transparency.
The latest update focuses primarily on Annex VII of the MoP, introducing several important improvements:
ACER confirmed that EIC codes for affected assets are now mandatory, improving standardisation and traceability.
Updated FAQs (Version 9.0, March 2026) provide additional clarity and align with the revised REMIT regulation.
While the update does not introduce entirely new obligations, it significantly clarifies how inside information must be structured and maintained in practice.
Issue updates as new versions instead of modifying previous messages. Full traceability of how information evolves over time.
Clearer guidance on handling overlapping unavailability events and precise expectations around asset identification.
Reporting must follow defined formats and validation rules. Incorrect submissions are subject to rejection and re-reporting.
To stay compliant, companies should:
In practice, this update raises the bar not by changing the rules — but by making expectations around implementation much more precise.
This transition period allows companies to update systems, processes, and reporting workflows.
The update highlights ACER's focus on:
Standardised reporting practices
Higher data quality & consistency
Greater market transparency
Companies should review their reporting setup, including:
Stay compliant, reduce operational risk, and ensure high-quality reporting — even as regulations evolve.