The Baltic countries have been actively working for years to synchronize their network to the Continental European Network (CEN).
In 2018, the leaders of the Baltic States and Poland signed a political roadmap together with the European Commission to set the target date of 2025 for accomplishing the synchronisation while an implementing roadmap was signed in June 2019 setting out the milestones up to the synchronisation date. The relevant grid developments and reinforcements have been also included in the fourth EU list of Projects of Common Interest (PCIs).