The Lithuanian electricity transmission system operator Litgrid has completed the expansion of LitPol Link, the power interconnection between Lithuania and Poland. The LitPol Link expansion project consisted of reconstructing the LitPol Link switchyard, the Alytus transformer substation, and the nearby 330 kV and 110 kV overhead transmission lines. It will allow the Baltic and the Continental European Synchronous Area to be interconnected at the same frequency by 2025.
In June 2021, the power transmission system operators (TSOs) of Poland and Lithuania PSE and Litgrid made the final investment decision for the Harmony Link interconnector project, a High Voltage Direct Current (HVDC) line between the two countries. The 330 km long line will connect the Żarnowiec substation in Poland with the future Darbėnai substation in Lithuania and will have a transmission capacity of 700 MW. The €700m project, which is co-financed under the EU’s Connecting Europe Facility (CEF) with a €500m grant, is expected to be completed in 2025.