ACER, the EU Agency for the Cooperation of Energy Regulators, published four compliance documents on the morning of Wednesday 29 April, the entry-into-force day for the recast REMIT regulation that polices wholesale electricity and gas trading across the bloc 1. The package contains an open letter on the recast Implementing Regulation, a second open letter on the new Delegated Regulation governing Registered Reporting Mechanisms (RRMs, the regulated trade-data submission entities) and Inside Information Platforms (IIPs, the regulated venues for material-non-public-information disclosure), a manual for new market participants, and a transaction reporting specification.
For trading desks running cross-border power and gas books, the most operational change is the reporting-window cliff. The old REMIT framework allowed a one-month settlement window for transaction reports; the recast framework cuts that to 14 days with no grandfather clause and no simultaneity waiver. ACER had confirmed the no-waiver position on 22 April and opened the implementing consultation on 16 April ; the four 29 April documents are the operational delivery. A contract booked on Tuesday 28 April still reports under the old monthly window. The same contract booked on Wednesday clears compliance audit a fortnight earlier. Compliance teams have spent the past week reconciling cross-border contracts booked across the midnight cliff.
The structurally novel piece is not the 14-day window but the new exposure reporting obligation. Market participants must now submit aggregate position exposure on standardised templates separate from trade-level reporting. Trade-level data under the 2014 framework gave ACER granular transaction visibility but limited aggregate position visibility; the exposure template is designed to surface concentration risk that trade-level data masked. In practice, the new template narrows what counts as proprietary information for trading-desk hedging programmes. Non-EU reporting intermediaries face revocation risk under the Delegated Regulation's RRM authorisation framework, which carries no grandfather clause for firms outside the EU's regulatory perimeter.
ACER fixed the annual REMIT workshop for 11 June 2026, the first formal industry feedback venue under the new framework. The workshop date sits inside the Court-of-Justice referral window The Commission opened the same day against three member states on the consumer-price directive, and inside the consultation period that closes 12 June on the implementing rules still open to revision. The first ACER REMIT 2.0 enforcement action under the 14-day window is the next regulatory marker.
