What is REMIT and how does it regulate European energy trading?: REMIT is the EU regulation banning insider trading and market manipulation in wholesale energy markets. It covers electricity, gas, and LNG spot and derivatives, and requires market participants to report trades and inside information.
What changed in REMIT in April 2026?: ACER confirmed on 22 April 2026 that the recast REMIT rules enter force on 29 April with no transition relief. Contracts on 28 April use the old one-month reporting window; identical contracts on 29 April use the new 14-day window, with no grace period.Source: ACER
What is the REMIT compliance paradox in 2026?: Market participants must comply with the recast REMIT rules from 29 April 2026, but ACER's public consultation on transaction reporting guidelines runs to 12 June 2026. Participants are required to follow rules still formally open to revision, with no grace period.Source: ACER
Does REMIT apply to LNG trading?: Yes. REMIT covers wholesale LNG markets including spot transactions and derivatives. ACER updated its LNG price assessment methodology in April 2026 and convened a dedicated Expert Group, reflecting growing LNG market significance after the Hormuz disruption.Source: ACER
When is the first REMIT 2.0 transaction reporting deadline?: The first REMIT 2.0 14-day transaction reporting deadline lands around 12 May 2026, approximately two weeks after the recast instruments entered force on 29 April with no grace period.Source: ACER
What is the REMIT compliance paradox and how does it affect energy traders?: The REMIT recast entered force on 29 April 2026 but ACER's consultation on the transaction reporting guideline runs to 12 June. Participants must comply from entry-into-force against guidance still formally open to revision, with no simultaneity waiver or grace period.Source: ACER
What new powers does ACER have under REMIT since 2024?: The 2024 REMIT amendments gave ACER direct investigatory and sanctioning authority, the most significant expansion since the 2019 REMIT II update. ACER can now directly investigate and fine market participants rather than only coordinating national regulator actions.Source: ACER / European Commission
Does REMIT 2.0 apply to non-EU energy trading firms?: Yes. Non-EU reporting intermediaries currently serving European energy markets receive no grandfather clause under the April 2026 recast. They must establish Registered Reporting Mechanisms and Inside Information Platforms within the EU or comply from 29 April.Source: ACER
What is the REMIT 2.0 first reporting deadline in 2026?: The first 14-day transaction reporting deadline under REMIT 2.0 landed around 12 May 2026, two weeks after the recast entered force on 29 April. ACER's public consultation on transaction reporting guidelines remains open until 12 June, meaning compliance is required against guidance still subject to revision.Source: ACER
What is REMIT and why does it matter for energy traders?: REMIT prohibits insider trading and market manipulation in EU wholesale energy markets. Its 2026 recast shortened the reporting window to 14 days and gave ACER direct sanctioning powers for the first time.Source: REMIT / ACER
What was the first REMIT 2.0 deadline in 2026?: The T+10 transaction reporting deadline landed on 12 May 2026, two weeks after the recast framework entered force on 29 April.Source: ACER
Why did energy market suspicious transaction reports double in 2025?: ACER's 8 May report showed 204 STORs filed by national regulators in 2025, double 2024 levels, attributed to TTF volatility driven by Hormuz disruption and improved national surveillance.Source: ACER enforcement report
Can energy companies outside the EU be fined under REMIT?: Non-EU reporting intermediaries receive no grandfather clause under the April 2026 recast; they face full compliance requirements with no phase-in under ACER's direct sanctioning authority.Source: REMIT 2024 amendments

Background

The first REMIT 2.0 T+10 transaction reporting deadline landed on 12 May 2026 — two weeks after the recast framework entered force on 29 April. ACER's enforcement report, published 8 May, showed 204 STORs (Suspicious Transaction and Order Reports) filed by national regulators in 2025, double the 2024 figure. ACER called for 'targeted improvements in surveillance by trading intermediaries' (PPATs). No enforcement action was announced in the first week; the guidance consultation runs to 12 June. Market participants are therefore required to comply with REMIT 2.0 against guidance formally open to revision — the compliance paradox that entered force on 29 April remains structurally unresolved.

REMIT (Regulation on Wholesale Energy Market Integrity and Transparency) was originally adopted in 2011 to prohibit insider trading and market manipulation in EU wholesale energy markets. The 2019 REMIT II update extended its scope; 2024 amendments granted ACER direct investigatory and sanctioning authority. The April 2026 recast introduces a new 14-day reporting window (replacing the prior one-month window), a new exposure reporting obligation, and tightened standards for non-EU reporting intermediaries. REMIT covers spot and derivative markets for electricity, natural gas, and LNG.

The doubling of STORs to 204 in a single year is the most significant enforcement signal in REMIT's fifteen-year history. Whether this reflects genuine market manipulation in a volatile year — TTF swung from EUR 38 to EUR 53 in April alone — or improved national regulator detection capability is unresolved. ACER's new direct sanctioning powers, untested before 29 April 2026, provide the enforcement instrument; the mid-June guidance close is the next procedural gate before first enforcement action is expected.

REMIT, the Regulation on Wholesale Energy Market Integrity and Transparency, underwent its most significant revision in a decade in April 2026 when ACER published two new implementing instruments: a recast Implementing Regulation replacing the 2014 data-reporting framework and a companion Delegated Regulation standardising oversight of Registered Reporting Mechanisms and Inside Information Platforms. ACER confirmed on 22 April that both enter force on 29 April 2026 with no general transition relief and no simultaneity waiver. A compliance paradox exists: contracts on 28 April fall under the old one-month reporting window; identical contracts on 29 April fall under the new 14-day window, with no grace period. The public consultation on REMIT transaction reporting guidelines runs to 12 June 2026, meaning participants must comply against guidance still open to formal revision.

REMIT was originally adopted in 2011 to prohibit insider trading and market manipulation in EU wholesale energy markets. The 2019 update (REMIT II) extended its scope and gave ACER enhanced coordination powers. The 2024 amendments went further, granting ACER direct investigatory and sanctioning authority. REMIT covers spot and derivative markets for electricity, natural gas, and LNG, and imposes mandatory reporting obligations on market participants via Registered Reporting Mechanisms and Inside Information Platforms. Non-EU reporting intermediaries receive no grandfather clause under the April 2026 recast.

The April 2026 revision is timely but contentious: European gas markets have experienced extreme volatility, with TTF trading in a EUR 38-53 range in April, driven by Hormuz signal noise, LNG cargo diversions, and structural supply removal. Market surveillance under REMIT is under heightened scrutiny as rapid price swings invite questions about manipulation versus genuine supply disruption; precisely the environment ACER's new investigatory powers were designed for.

How the World Sees Them

ACER

The doubling of STORs to 204 gives ACER political cover to deploy its new direct sanctioning powers for the first time; the question is whether the first sanction lands before or after the June guidance close.

Energy traders

At TTF volatility levels seen in April 2026 (EUR 38-53/MWh range), every large swing triggers STOR review; the 204-STOR figure may increase further through the injection season.

EU energy market participants

The compliance paradox — live rules, open guidance — creates legal exposure for trading intermediaries who must self-certify compliance against a standard still formally being consulted on.

Non-EU reporting intermediaries

No grandfather clause means non-EU firms face immediate compliance costs with no phase-in, creating a competitive disadvantage versus EU-based equivalents.