Documents and Publications

The report examines whether Europe's electricity, gas and hydrogen networks are adapting to changing energy needs, and what this means in terms of investment costs, delays and costs for consumers.

The report examines the progress of EU market integration and covers key developments across all market timeframes, as well as trends in cross-zonal capacity availability and congestion management.

The report analyses household electricity and gas prices, bills, affordability and what the shift to electrification means for consumers.

In summer 2024, Southeast Europe experienced a sustained period of electricity price spikes. This report analyses the main drivers behind it and lays out measures to increase cross-zonal capacity and system flexibility in the region to mitigate their reoccurrence in the future.

This report outlines key developments in European energy markets in 2025, with a focus on the evolving interaction between gas and electricity. It sets out ACER’s recommendations to step up energy market integration efforts to support decarbonisation, energy security and competitiveness goals.

ACER publishes its report on the implementation of the inter-transmission system operators compensation mechanism (ITC) for 2024.

This report covers Regional Coordination Centres' self-reporting efforts in 2024 and, for the first time, more detailed information on 4 tasks requested by ACER.

ACER’s 2025 report on security of EU electricity supply looks at whether Europe had adequate electricity supply in 2024, assesses risk preparedness and cross-sectoral interactions and highlights opportunities to improve efficiency through greater transparency and coordination.

ACER’s 2025 electricity Monitoring Report reviews progress in integrating EU electricity markets. It examines forward, day-ahead, intraday and balancing markets, and identifies where rules and projects are delayed.