Energy interconnection
between Lithuania and Poland

Technical solution

The 400kV overhead double-cicuit transmission line Lithuania-Poland will interconnect the Polish town of Ełk with the Lithuanian town of Alytus, where back-to-back station will be built. The line’s length will reach approx. 150 km of which approx. 100 km will be on the Polish side, through the voivodships podlaskie and warmińsko-mazurskie. Other, approx 50 km will be on the Lithuanian side, in Alytus and Lazdijai districts, belonging to the Alytus County.

Power link interconnection is planned to be operational by 2015. The interconnection will ultimately reach capacity of 1000 MW. 

In the North-East Poland till 2015 networks between towns of Ostrołęka, Olsztyn and Białystok will also be developed, and it is planned to build a new transsmission line “Alytus-Kruonis Pumped Storage Plant”. The modernisation of the electricity lines not only will improve the reliability of power transmission in the North-East Poland and South Lithuania regions, but also will increase the region development possibilities and investment attraction for the investors.

Lithuanian and Poland power interconnection definitely will have positive impact on economic growth of Lithuania and state’s competitiveness increasement. Reconstructions in power energy sector in South Lithuania will be important in increasing security and stability of power energy transmission – more than half of transmission system devices are older than 20 years, quarter of them – more than 30 years.

For the future functioning of the power connection Alytus – Elk it is necessary to build new transmission lines in the North-East Poland, which will improve the power energy supply security in the voivodship warminsko – mazurskie and podlaskie. The development of the electricity system network not only will increase the security of energy supply but also will make a chance for the economic growth and increse region advantages of North – East Poland to the potential investors