In December 2025, NRAs of Continental Europe Synchronous Area asked for a six-month extension to decide on the minimum activation period of frequency containment reserves. With its Decision 01/2026, ACER prolonged the NRAs' deadline until 17 June 2026.
ACER publishes its Opinion on the Integrated Model report for EU electricity, gas and hydrogen infrastructure planning, submitted in October by ENTSO-E and ENTSOG and prepared with support from ENNOH.
ACER issues today its guidance on the information to be voluntarily submitted for the monitoring of operational reliability performance indicators related to cybersecurity in the electricity sector.
Mr Bogdan Chirițoiu takes over as the new Chair of the Administrative Board of the EU Agency for the Cooperation of Energy Regulators (ACER), and Mr Tomasz Dąbrowski as the Vice-Chair.
ACER publishes a position paper introducing output performance indicators to measure the performance of grid-enhancing technologies in electricity transmission.
ACER releases its multi-annual programming document 2026-2028, outlining its strategic goals and priorities for the coming years, including its 2026 work programme.
ACER publishes its Recommendation on how national regulatory authorities (NRAs) should report barriers to non-fossil flexibility in their flexibility needs assessments.
ACER publishes its Decision amending the European Resource Adequacy Assessment methodology, following the proposal submitted by the European Network of Transmission System Operators for Electricity (ENTSO-E) in November 2025.
