The project provides for: 1. Construction of a two-track 400 kV Pątnów line — Jasiniec; 2. Construction of 400 kV switchgear at 220/110 kV Jasiniec station; 3. Expansion of the 400/220/110 kV switchgear at Pątnów station with the introduction of the 400 kV Kromolice — Pątnów line to the Pątnów station. The aim of the project is to improve the safety and reliability of electricity supply in the Wielkopolska and Kujawsko-Pomorskie voivodships. The construction of a line connection will be able to carry out power transmission at the time of the outages forced by the modernisation of the connected 220 kV lines.