The subject of the project is the construction of a two-track high voltage power line of 400 kV with a length of 110 km (220 km of electricity network) on the Ostrołęka-Stanisławów section. In this section, one station 400 (220)/110 kV Wyszków will be built and two stations will be expanded: 400/220/110 kV Ostrołęka and 400 kV Stanisławów. The aim of the project is to improve the safety and safety of the National Power System in the north-eastern part of Poland, to improve the power supply of the Warsaw agglomeration and the 110 kV network The indirect objective of the project is: a) creating the conditions for increasing the possibility of electricity exchanges with the Lithuanian electricity system while ensuring the safe operation of this connection (b) creating the conditions for power decommissioning from conventional and renewable energy sources