ACER holds its annual REMIT workshop with the European Commission on Thursday 11 June, and the transaction-reporting guidance consultation closes the next day, Friday 12 June1. ACER is the EU's energy-regulator agency; REMIT, the Regulation on Wholesale Energy Market Integrity and Transparency, is the framework prohibiting manipulation and insider trading in gas and power. The workshop covers secondary reporting legislation, market surveillance and the agency's expanded cross-border investigatory powers, which activate in the second half of 2026.
Compliance desks should read the sequencing closely: the workshop runs the day before the rulebook it discusses is locked. REMIT 2.0's first T+10 reporting deadline already landed on 12 May, and ACER logged 204 suspicious-transaction reports in 2025, double the prior year, before the guidance was even finalised.
From H2 2026, ACER can open cross-border manipulation investigations directly rather than refer them to national regulators. ACER confirmed the 11 June venue as an enforcement event, not a storage-policy one, in its late-May announcement. No enforcement action under the expanded powers has been announced yet.
