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