The 2025 Consolidated Annual Activity Report outlines ACER’s regulatory work and achievements over the year. It also reviews how ACER delivered on its 2025 work programme.
After reviewing ENTSO-E's proposal and exchanging with stakeholders, ACER has decided to amend the methodology for the regional sizing of reserve capacity.
On Thursday 16 July 2026, ACER will open a public consultation on an Annex to the Guideline on REMIT transaction reporting, covering energy derivative transactions.
Transmission system operators (TSOs) submitted a proposal to ACER to revise the harmonised allocation rules (HAR) and the requirements for the single allocation platform (SAP). ACER will open a public consultation.
The Gas Market Task Force (GMTF) concluded its work to scrutinise the functioning of the EU’s gas market and gas derivatives markets under the mandate of the European Commission.
The dataset provides economic parameters for new electricity resources, including estimated capital and operational costs for different power generation technologies and demand-side flexibility.
On 21 July 2026, ACER received a proposal from all nominated electricity market operators to amend the methodology for the price coupling, continuous trading matching and intraday auction algorithms. ACER will decide by 21 January 2027.
