Regulatory primer
REMIT
Regulation (EU) 1227/2011 — Wholesale Energy Market Integrity and Transparency · European Union · In force since 28 December 2011; REMIT II amendments effective 2024
REMIT is the EU regulation prohibiting market manipulation + insider trading in wholesale energy markets. ACER (Agency for the Cooperation of Energy Regulators) and national regulatory authorities (NRAs) supervise. AI-driven trading + bidding in wholesale energy markets must demonstrate market-conduct compliance per-decision.
What it is
REMIT covers wholesale energy products (electricity + natural gas contracts traded between market participants, plus transport contracts on transmission grids). It prohibits market manipulation (Art. 5) + insider trading (Art. 3) + requires transparency in the wholesale market (Art. 4).
REMIT II (Regulation (EU) 2024/1106, amendments to REMIT) entered into force May 2024. Expanded scope to include intraday products + algorithmic-trading-specific obligations. Tightened reporting + enhanced ACER's powers.
Enforcement: ACER at EU level + NRAs at member-state level. Penalties vary by national implementation but commonly include large monetary fines (often %-of-turnover-based) + market-participation bans.
Who's in scope
- Market participants entering into transactions in wholesale energy products that are required to be reported to ACER.
- Persons professionally arranging transactions (PPATs) — brokers + matched-principal trading firms.
- Operators of organised market places (OMPs) — exchanges, brokers, trading venues.
- AI-driven trading systems used by any of the above are within scope through the conduct + supervision of the market participant operating them.
Key obligations
Art. 3 — insider trading prohibition
Prohibits using inside information to acquire, dispose of, or attempt to acquire/dispose of wholesale energy products. Recommending or inducing another person to do so on the basis of inside information is also prohibited.
Art. 5 — market manipulation prohibition
Prohibits entering transactions or issuing orders giving misleading signals as to supply/demand/price; securing prices at artificial levels; using fictitious devices/contrivances; disseminating false or misleading information.
Art. 4 — publication of inside information
Market participants must publicly disclose inside information relating to their business or facilities without delay. Effective + timely disclosure obligations.
Art. 8 — reporting of transactions + orders to ACER
Market participants must report transactions + orders to ACER via Registered Reporting Mechanisms (RRMs). Detailed data fields specified by implementing acts.
Art. 15 — obligation to cooperate with investigations
Market participants must provide ACER + NRAs with information + records on request. Includes algorithmic-trading logic + parameters when investigating manipulation suspicions.
REMIT II additions — algorithmic trading
Notification of algorithmic-trading activities to NRAs. Documentation of algorithmic-trading systems. Risk controls + circuit breakers. Annual self-assessment.
Timeline + applicability
- 28 Dec 2011REMIT entered into force.
- 29 Jun 2013First implementing regulation (data reporting) entered into force.
- 8 May 2024REMIT II amendments (Reg. (EU) 2024/1106) entered into force. Expanded scope + algorithmic-trading obligations.
What's still being worked out
Areas where the regulation's interpretation is genuinely unsettled. Vendor pages skip this; we don't. Your counsel is the right venue for definitive guidance on your deployment.
- Where REMIT's market-manipulation prohibition stops + legitimate algorithmic-trading optimisation continues — ACER guidance is evolving.
- REMIT vs MAR (Market Abuse Regulation) overlap for energy products traded on regulated markets — concurrent supervision is normal but enforcement priority varies.
- Algorithmic-trading documentation requirements — what level of code/configuration disclosure ACER + NRAs can demand.
- Cross-border investigation coordination — ACER + multiple NRAs concurrently active is common; resolution-mechanism practice continues to develop.
- How AI-driven trading systems differ from rule-based algorithmic trading under REMIT II — not yet definitively addressed in supervisor guidance.
Sectors most affected
Primary sources
Where Promethean fits
For AI-driven trading + bidding + dispatch decisioning in wholesale energy markets, Promethean's L12 chain provides the per-decision audit trail ACER + NRAs increasingly demand during investigations. Each decision (buy / sell / hold + price + volume) becomes an L12 entry with spec hash (algorithm configuration), input hash (market context), output canonical hash (the decision), modelIdentity (which model), reviewer verdict where applicable. ACER asking 'why did your system bid X at hour Y' gets a verifiable answer from the chain + verify.mjs, not a regression run.
What Promethean does NOT solve
- Trading-algorithm design or risk controls — operator's quantitative + trading-engineering function.
- RRM transaction reporting — that's a separate ACER-supervised reporting infrastructure.
- Pre-trade compliance controls (position limits, circuit breakers) — operator's trading-platform safeguards.
- Investigation cooperation strategy — that's the operator's legal + compliance function.
FAQ
Are AI-driven trading systems in REMIT scope?
Yes — to the extent the AI system is used by a market participant entering transactions in wholesale energy products. The market participant remains responsible for compliance regardless of whether decisions are made by humans, rule-based algorithms, or AI models. REMIT II adds specific algorithmic-trading-notification + documentation requirements.
What does ACER inspect when investigating suspected manipulation?
Order + transaction records (reported via RRMs), trading-system documentation, algorithmic-trading logic (where applicable), internal communications, market-participant filings (Art. 4 disclosures). For AI-driven systems, the algorithmic-trading documentation must enable ACER to reconstruct the system's behaviour at any point — which is where verifiable per-decision audit-trail evidence materially helps.
How does REMIT interact with MiFID II / MAR?
Energy products can be financial instruments under MiFID II (when traded as derivatives on regulated markets) — MAR applies in parallel. REMIT covers spot + physical wholesale-energy products; MAR covers financial-instrument segments. Practical overlap requires concurrent compliance + cooperative supervision between ACER + national financial-market authorities.
What's new in REMIT II for AI trading?
REMIT II (Reg. 2024/1106): expanded scope to include intraday markets + new product types, mandatory notification of algorithmic-trading activities to NRAs, documentation of algorithmic-trading systems, mandatory risk controls + circuit breakers, annual self-assessment of compliance, enhanced ACER powers including direct on-site inspections + sanctioning powers.
Does REMIT apply to retail-energy AI (smart-metering, demand-response)?
REMIT covers wholesale, not retail. Retail-energy AI (smart-metering analytics, demand-response optimisation for end consumers, EV-charging tariff personalisation) is outside REMIT direct scope but engages adjacent regimes — GDPR for personal-data processing, AI Act §2 for critical-infrastructure AI safety components, sector-specific national regulation.