Individual Decisions Share on: To access social media, you must accept cookies. Configure cookies Search Decisions 22.07.2026 ACER Decision No 11-2026 on the methodology for cost sharing of redispatching and countertrading of the Core capacity calculation region Annexes ACER Decision 11-2026 - Methodology - Annex I ACER Decision 11-2026 - Methodology - Annex Ia (TC) Decisions 17.07.2026 ACER Decision No 10-2026 on the fourth amendment of the Core region's day-ahead capacity calculation methodology Annexes ACER Decision No 10-2026 - Annex I ACER Decision No 10-2026 - Annex Ia ACER Decision No 10-2026 - Annex II ACER Decision No 10-2026 - Annex IIa Decisions 17.07.2026 ACER Decision No 09-2026 on the first amendment of the Core region's long-term capacity calculation methodology Annexes ACER Decision No 09-2026 - Annex I ACER Decision No 09-2026 - Annex Ia ACER Decision No 09-2026 - Annex II ACER Decision No 09-2026 - Annex IIa ACER Decision No 09-2026 - Annex III - EoR Decisions 24.06.2026 ACER Decision No 08-2026 on the first amendment to the regional coordination centre regional sizing of reserve capacity methodology Annexes Corrigendum ACER Decision 08-2026 on RCC sizing methodology - Annex I - Rectified ACER Decision 08-2026 on RCC sizing methodology - Annex Ia - Rectified ACER Decision 08-2026 on RCC sizing methodology - Annex II - Rectified ACER Decision 08-2026 on RCC sizing methodology - Annex IIa -Rectified Feedback Decisions 22.06.2026 ACER Decision No 07-2026 amending Decision No 02-2019 on the Core region day-ahead and intraday common capacity calculation methodologies Decisions 29.04.2026 ACER Decision No 06-2026 on the European Resource Adequacy Assessment (ERAA) 2025 Annexes ACER Decision No 06-2026 - Annex Ia - Executive report ACER Decision No 06-2026 - Annex Ib - Input data & assumptions ACER Decision No 06-2026 - Annex Ic - Methodology ACER Decision No 06-2026 - Annex Id - Detailed rules ACER Decision No 06-2026 - Annex Ie - Scarcity events analysis ACER Decision No 06-2026 - Annex If - Revenue-based EVA ACER Decision No 06-2026 - Annex Ig - Country comments ACER Decision No 06-2026 - Annex Ih - Definitions & glossary ACER Decision No 06-2026 - Annex II - Amendments Corrigendum to Annex II ACER Decision No 06-2026 - Annex III - Technical Annex ACER BoR letter to ENTSO-E Decisions 17.03.2026 ACER Decision 04-2026 on the amendments to the methodology for the European Resource Adequacy Assessment (ERAA) Annexes ACER Decision 04-2026 on ERAA Methodology - Annex I ACER Decision 04-2026 on ERAA Methodology - Annex Ia Decisions 05.02.2026 ACER Decision 03-2026 on harmonised maximum and minimum clearing price methodology for intraday coupling Annexes ACER Decision 03-2026 - Annex I ACER Decision 03-2026 - Annex Ia (TC) Decisions 05.02.2026 ACER Decision 02-2026 on harmonised maximum and minimum clearing price methodology for day-ahead coupling Annexes ACER Decision 02-2026 - Annex I ACER Decision 02-2026 - Annex Ia (TC)