Installation and Operation of the Offshore Wind Farm in Lithuania’s Territorial Sea ( October 2025 )

Lithuania is going to develop a major installation for the harnessing of wind power for energy production (wind farm) - Installation and operation of the Curonian Nord offshore wind farm (hereinafter - CN OWF).

The planned project includes:

1. construction and operation of the CN OWF and its related infrastructure in the Baltic Sea, within the territory approved by Government Resolution No. 171 (identified as “Area A” in the Engineering infrastructure development plan), including the transmission and integration of the generated electricity into the onshore transmission system operated by the Transmission System Operator (hereinafter – TSO);

2. installation and operation of the necessary electricity transmission infrastructure to connect the OWF identified as "Area D" to the onshore TSO network, including engineering infrastructure development, integration and exploitation.

CN OWF is planned approx. 0.9 km from the Latvian EEZ, 69 km from the Swedish EEZ and almost 36 km from the Russian EEZ. Due to the continuous and rapid development of WTG technology, more powerful WTG models, potentially up to 20 MW, may be available at the time of construction. The height of an offshore WTG depends on factors such as the capacity and rotor diameter of the model selected, the wind class at the site, and the environmental conditions. The limits of the technical and physical characteristics of offshore WTGs to be assessed during the EIA are shown in the table below.

During the technical design phase, based on the Developer’s data and the specified wind speed parameters, the most suitable physical and technical parameters of the WTGs, including their capacity, will be selected. All offshore WTGs will be connected by inter-array cables to the offshore substations, and from there export cables will connect the OWF to the existing onshore substation and finally to the connection site of the 330 kV in Darbėnai Switchyard.

According to Lithuanian legislation offshore installations for the harnessing of wind power for energy production (wind farms) are subject to environmental impact assessment.

The Environmental Impact Assessment Report (in English) and the summary of the environmental impact assessment report (in English and Latvian) are available via link https://ftp.corpi.lt/rosita/Curonian%20Nord_transboundary_doc_2025-09-26/

Comments and proposals for the Environmental Impact Assessment Report in writing can be provided at the latest by 12 December 2025 to the e-mail address [email protected].