The System Operations Committee has 5 permanent regional groups based on the synchronous areas (Continental Europe, Nordic, Baltic, Great Britain, and Ireland-Northern Ireland), and 2 voluntary Regional Groups (Northern Europe and Isolated Systems).
Having a permanent character, these Regional Groups ensure compatibility between system operations on the one side and market solutions and system development issues on the other.
||Austria, Belgium, Bosnia-Herzegovina, Bulgaria, Czech Republic, Croatia, Denmark (West), France, FYROM, Germany, Greece, Hungary, Italy, Luxemburg, Montenegro, Nederland, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain and Switzerland
||Denmark (East), Finland, Norway and Sweden
||Estonia, Latvia, Lithuania
||Ireland, Great Britain
The Regional Groups will continue the system operations activities of former TSO associations in Europe, addressing technical and operational aspects specific to the synchronously interconnected system operation.
- Continental Europe - former UCTE
- Nordic - former NORDEL
- Baltic - former BALTSO
- UK - former UKTSOA
- Ireland - former ATSOI