Documents and Publications

The report tracks remaining Russian gas contracts to the EU during the phase-out of Russian gas imports, as mandated by the REPower Gas Regulation. This is the first report produced under the Regulation, the next one is due on 1 July 2027.

The report explores how the EU can balance gas decarbonisation with the three pillars of EU energy policy - sustainability, security of supply and industrial competitiveness and affordability.

This report assesses contractual congestion in EU gas markets, covering 2024 and 2025. ACER finds that contractual congestion eased, pointing to a new equilibrium in the EU gas market following the 2022 market crisis.
 

This ACER LNG report reviews key market trends in 2025 and the implications for Europe’s energy security, including the risks linked to tensions in the Middle East.

This report analyses the preparedness of persons professionally arranging transactions (PPATs) to detect and report suspicious behaviour. PPATs are trading intermediaries such as energy exchanges, organised market places (OMPs) or brokers, who arrange or facilitate transactions in wholesale energy products.

This report focuses on national regulatory authorities’ (NRAs’) analysis of suspicious transaction and order reports (STORs) submitted by PPATs, their enforcement actions and penalties.

This report provides an overview of European gas wholesale markets trends during the winter season, covering the period from October 2025 to March 2026. It also explores the evolving impact of the Middle East conflict on European gas markets.

This report assesses whether the proposed reference price methodology for Latvia complies with the requirements of the EU binding Network Code on Harmonised Transmission Tariff Structures.

This report assesses whether the proposed reference price methodology for Denmark complies with the requirements of the EU binding Network Code on Harmonised Transmission Tariff Structures.