Documents and Publications

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.

The report examines the role of cross-zonal electricity trade in shaping a more integrated and efficient EU electricity market. 

This guidance provides practical recommendations to help national distribution grid operators align with Europe’s decarbonisation goals and turn grid development into a driver of the clean energy transition. 

Covering 50 decisions made between 2014 and 2024, the report provides insights into how these decisions determine the cost distribution of major cross-border projects and support project development.