The scope of the project includes modernisation, construction and reconstruction of medium-voltage power lines (SN) located within the Olsztyn Branch of ENERGA-OPERATOR S.A. The project covers 8 investment tasks planned to be carried out in the years 2018-2019 in the Warmia-Mazury Voivodeship, in the area of communes: Elbląg, Szczytno, Wielbark, Olsztynek, Nidzica, Sorkwity, Bishop, Dąbrówno and Lidzbark Warminski. The detailed scope, i.e. precise determination of the location of the Project (communities, towns, addresses and plots), the material scope of individual tasks (technical elements, type of infrastructure, quantity) description of the chosen solution and technical implementation conditions, together with determining whether the infrastructure elements are new, modernised, adapted or not to be modernised, is included in Annex 1 to the feasibility study. The Project’s material scope and selected technological solutions include: replacement of old overhead power cables on existing average voltage lines of 15 kV with new, insulated and for the replacement of sections of power lines supplying some transformer stations from overhead to cables, demolition of old overhead SN lines, replacement of cable lines SN, construction of cable lines, construction of cable outlets from WN/SN station, construction of cable connections of existing SN lines, construction of new cable lines SN, construction of cable stations and cable stations The proposed investment tasks will increase the ability to connect new RES generation units and micro-installations to the grid in such a way as to ensure the safety of OSD electricity grids.