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ACER opens the REMIT reporting annex

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10:53UTC

ACER opened its consultation on the REMIT transaction-reporting annex on 16 July, exactly on schedule, and set the close for 11 September.

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Key takeaway

ACER's REMIT annex consultation closes 11 September, one quarter before cross-border enforcement activates.

ACER, the EU agency that coordinates national energy regulators from Ljubljana, opened its public consultation on the REMIT transaction-reporting annex on 16 July, on exactly the date it had scheduled , and set the close for 11 September ¹. REMIT, the EU Regulation on Wholesale Energy Market Integrity and Transparency, obliges trading firms to report their wholesale energy transactions to the agency; the annex specifies the format and scope of those reports.

The substantive change sits in the scope clarification. The annex covers energy derivative transaction reporting and draws the boundary against Regulation (EU) 648/2012, the EMIR framework governing OTC derivatives, central counterparties and trade repositories ². Where a trade falls determines which reporting pipe it goes down, and firms running both frameworks have been carrying duplicate builds against an unclear line.

The stated audience names who has to answer: market participants, national regulators, registered reporting mechanisms and organised marketplaces. Cross-border REMIT enforcement activates in Q4, so roughly seven weeks remain to comment on the standard, then a single quarter to implement against a final text nobody has seen yet.

Deep Analysis

In plain English

ACER, the EU agency that watches over energy markets to catch price manipulation and unfair trading across borders, enforces its rulebook, REMIT, in every member state. To enforce REMIT properly, ACER needs companies that trade energy contracts to report their trades in a standard format. It has opened a public consultation, running from 16 July to 11 September, asking traders, regulators and market operators for feedback on exactly what that reporting format should cover. This is a technical, behind-the-scenes step, but it matters because it sets up the data ACER will use later this year when its stronger cross-border investigation powers switch on.

Deep Analysis

Root Causes

REMIT's 2024 revision gave ACER direct cross-border investigatory powers, but those powers depend on regulators and trading venues reporting energy-derivative transactions in a consistent format. The consultation exists because that reporting format has to be clarified against EMIR, Regulation (EU) 648/2012's rules for OTC derivatives, clearing houses and trade repositories, before ACER's enforcement teeth can be used with confidence in the data underneath them.

Without an agreed annex, national regulators and reporting mechanisms would be free to interpret reporting scope differently, which would undermine the cross-border investigations the 2024 revision was designed to enable.

What could happen next?

Precedent
A clarified reporting annex gives ACER a firmer evidential basis once its expanded cross-border investigatory powers activate in the second half of 2026, strengthening any future enforcement action against suspected market manipulation.

Sources:ACER

Mentions:ACER →REMIT →

First Reported In

Update #28 · Hormuz premium inverts the German spark spread

ACER· 20 Jul 2026

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Causes and effects

Caused by

ACER lifts price cap to EUR 99,999

ACER's 22 June cross-border price-limit widening scheduled the REMIT annex consultation that opened on 16 July as planned.

Occurred 22 Jun 2026

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This Event

ACER opens the REMIT reporting annex

Firms get roughly seven weeks to shape the reporting standard and a single quarter to build systems against whatever emerges from it.

Different Perspectives

Cross-border power traders

The France-Germany day-ahead spread flipped from a EUR 17.20 German premium on 1 August to a EUR 4.15 French premium on 3 August, the same day French curtailment peaked. They cannot yet attribute the flip to curtailment alone, since a like-for-like overnight comparison shows French nuclear output rising while wind fell and demand returned on the weekday step.

EDF

River-cooling limits took 7.6 GW, 12 per cent of its fleet, offline on 3 August, the highest curtailment since the heatwave began, with an easing forecast to 4.3 GW on 4 August and 3 GW after. It manages the cut as a recurring seasonal constraint, expecting it to lift with river temperature, not repair.

Gasunie

TTF, the Dutch hub it operates, drifted to roughly EUR 55 to 58 per MWh across the window, staying inside its recent range through both the German spark reversal and the French curtailment. It reads a flat hub price as evidence that neither event this window carried enough weight to move the fuel leg on its own.

German gas-fired generators

Record German solar of 18,761 MW on 2 August pushed the clean spark spread to minus 18.48 EUR/MWh, a loss-making day, before it returned to plus 16.20 on 3 August. They now price dispatch against post-solar residual load rather than wind alone, since the sign flipped inside 48 hours on unchanged fuel and carbon costs.

European Commission (DG Energy)

Its implementing-measures register logged transposition notices from only Portugal and Slovakia against Wednesday's Article 94 deadline for Directive (EU) 2024/1788, with 25 states silent. It expects the register to fill only gradually, since filing routinely lags legislating and any infringement track against non-notifying states runs on a slower clock than the deadline itself.

Spain's LNG terminal operators

Spain's 9,145 GWh terminal inventory is the largest single stock in the EU LNG network, an option value that can reroute cargoes wherever the winter strip pays best rather than a cavern gas obligation tied to a fixed date. That flexibility matters more as Germany's cavern shortfall pushes more of the winter security question onto import infrastructure.