Innovation and Networks Executive Agency


Baltic Synchronisation Project – Phase 1
CEF Energy
Call year:
Location of the Action:
Implementation schedule: 
January 2019 to December 2025
Maximum EU contribution: 
Total eligible costs: 
Percentage of EU support: 

LITGRID AB (Lithuania)

AS “Augstsprieguma tīkls” (Latvia)

Elering AS (Estonia)

Energy corridor:
Energy sector:
Project(s) of Common Interest:
Additional information: 

European Commission, DG ENER

Agency for the Cooperation of Energy Regulators (ACER)

European Network of Transmission System Operators for Electricity (ENTSO-E)

Last modified: 
May 2019


The Action contributes to the implementation 6 PCIs of the Cluster 4.8 Integration and synchronisation of the Baltic States' electricity system with the European network, namely 4.8.1 Interconnection between Tartu (EE) and Valmiera (LV); 4.8.2 Internal line between Balti and Tartu (EE); 4.8.3 Interconnection Tsirguliina (EE) and Valmiera (LV); 4.8.4 Internal line between Eesti and Tsirguliina (EE); 4.8.8 Internal line between Vilnius and Neris (LT); 4.8.9 Further infrastructure aspects of the synchronisation of the Baltic States’ electricity system with the European networks. The Action fully implements Phase 1 - Internal transmission network reinforcements in the Baltic States - of the entire Synchronisation project.

The Action's scope covers the construction or reconstruction, including dismantling, of new or existing lines in Latvia, Lithuania and Estonia; the construction of new autotransformers and switchyard in Lithuania; installation of new voltage control units, equipment for providing of inertia and frequency regulation in the Baltics and preparatory works of the AGC and frequency control monitoring systems in the Baltics.

Once the Action is completed together with Phase II of the Baltic Synchronisation project the Baltic States will be ready to operate in synchronous mode with Central European Network (CEN).