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Lithuania's Litgrid announces public tenders for two 330 kV lines [free access]

April 20, 2021

Lithuanian electricity transmission system operator (TSO) Litgrid has announced public tenders for the design and construction of the 330 kV Darbėnai–Bitėnai and Kruonis hydro power plant (HPP)–Bitėnai power transmission lines.

 

The winning bidders will perform the works associated with the second stage of both lines, which include preparing technical designs and construction works in the newly-built and reconstructed sections of lines in the district municipalities of Klaipėda, Šilutė, Pagėgiai, Jurbarkas, Šakiai and Vilkaviškis. For the Kruonis HPP–Bitėnai line, bidders are expected to submit the bids by May 25, 2021, while for the 330 kV Darbėnai–Bitėnai line project, the deadline for bid submission is May 21, 2021. The contracts are expected to be signed by the end of the year.

 

The almost 140 km-long Darbėnai–Bitėnai line will connect the planned Darbėnai substation in Kretinga municipality with the Bitėnai substation in Pagėgiai municipality. Most of the line will be reconstructed by changing the supports and by adding a second circuit within the safety zone of the existing lines. However, a completely new bypass of approximately 12 km around the city of Klaipėda will also be built. This project consists of two phases. The first one is to reconstruct the section of the Klaipėda–Grobinė line from the future Darbėnai substation to the border of Kretinga–Klaipėda districts. During the reconstruction, the line will be changed from single-circuit to double-circuit. The first phase of design work is already underway. The announced procurement of engineering and construction works includes the second stage—reconstruction of the existing Klaipėda–Grobinė line in Klaipėda district, construction of a new section of the line around the city of Klaipėda, and reconstruction of an approximately 80 km-long section of the Klaipėda-Šyša-Bitėnai line from the bypass joining point to the Bitėnai transformer substation.

 

The total length of the Kruonis HPP–Bitėnai line is 211 km, of which 62 km will be used to form a new engineering corridor in the district municipalities of Vilkaviškis, Šakiai and Jurbarkas, whereas the other 39 km will see a reconstruction of the existing part of the line from Jurbarkas to Bitėnai, using the existing infrastructure corridor. This project consists of three phases. The first one is to reconstruct the line from Jurbarkas to Bitėnai, where the line will be changed from single-circuit to double-circuit. The first phase of design work in this phase is already underway. The announced procurement of design and construction works includes the second stage, in which a new line will be built from the reconstructed section to the existing 330 kV Kruonis HPP–Sovietskas line located in Vilkaviškis district municipality. In the third stage, the Bitėnai transformer substation will be expanded and the newly-built line will be connected.

 

As reported, these lines are two of 14 strategic state projects necessary to implement the strategic goal of Lithuania to achieve synchronisation with the Continental Europe Synchronous Area (CESA) grid. The synchronisation of the Baltic States with continental Europe is planned to be implemented in 2025.