On 27 February 2026, ACER will open two public consultations on:
- economic input data to improve European electricity system modelling; and
- amendments to the Core region's long-term capacity calculation methodology.
The consultation on economic input data for European electricity system modelling presents a new dataset outlining estimated investment and operational costs for various power generation technologies and demand-side flexibility at Member State level. Its aim is to ensure that the inputs used in European-level modelling are robust, transparent and properly grounded in national market realities.
Stakeholders are invited to review the data relevant to their Member State(s) and provide feedback to help improve its accuracy and reliability.
The consultation on amendments to the Core region’s long-term capacity calculation methodology aims to inform ACER’s decision on the proposed changes to enhance long-term capacity calculation. The transmission system operators’ proposal suggests enabling the implementation of the flow-based methodology and integrating the Ireland and Northern Ireland single electricity market – France bidding zone border into the Core region’s long-term capacity calculation process.
Get involved!
Both consultations will run from 27 February until 27 March 2026.
Read more about the economic input data consultation.
Read more about the Core region’s methodology consultation.
