ENTSO-E welcomes the approval of the European Resource Adequacy Assessment (ERAA) 2024 by the Agency for the Cooperation of Energy Regulators (ACER). ENTSO-E is responsible for developing a pan-European monitoring assessment of power system resource adequacy of up to 10 years ahead, analysing possible events that could adversely affect the balance between electricity supply and demand. With its full pan-European scope, the ERAA provides a complementary view to national and regional resource adequacy assessments. 

This ACER decision affirms the importance of ERAA for supporting governments and policy makers on matters of  security of supply, such as the introduction of capacity mechanisms (CMs). ACER has also confirmed in its decision the steps taken by ENTSO-E and its member TSOs - in coordination with stakeholders and authorities - to ensure high-quality and transparent adequacy assessments. 

ENTSO-E acknowledges the valuable input provided by ACER and other stakeholders throughout this process and remains committed to enhancing the ERAA’s robustness and accuracy. Nevertheless, ENTSO-E regrets that  the ACER decision includes a number of unilateral amendments to the ENTSO-E analysis which impacts the security assessments of several Member States. 

ENTSO-E is currently working on the next ERAA 2025, which will be published by the end of this year. In parallel, the ERAA methodology is under review and was published for public consultation. Two webinars were organised on 20 August 2025, the recordings can be found here