For the first time, ACER publishes two reports on energy market surveillance, concerning: persons professionally arranging transactions and national energy regulatory authorities (focusing on their analysis of suspicious transaction and order reports).
The Baltic energy regulators (Estonia, Finland, Latvia, Lithuania, Poland and Sweden) requested from ACER a three-month extension to decide on the capacity calculation methodology for long-term timeframes.
On 28 April 2025, a large-scale blackout occurred in Spain and Portugal shortly after 12.30 CEST. An expert panel is being set up by ENTSO-E to investigate the incident.
ENTSO-E submitted its proposal for ERAA 2024 for ACER approval in April 2025. ACER will issue its decision in July 2025. ACER also requested ENTSO-E to propose amendments to the ERAA methodology by mid-October 2025.
ACER has published its opinion on the amended balancing monitoring plan of the European Network Transmission System Operators for Electricity (ENTSO-E), suggesting more flexible reporting timelines, while stressing the need for improved data quality.
ACER approved two proposals from all electricity transmission system operators (TSOs) to amend the implementation frameworks for PICASSO and MARI, the EU platforms for exchanging balancing energy from frequency restoration reserves.
ACER published its Opinion on Portugal’s National Resource Adequacy Assessment (NRAA), highlighting that the country’s projected electricity adequacy gap may be overstated.
