Montenegro’s electricity transmission network is set for a significant transformation as the country’s transmission system operator, CGES, prepares an investment program exceeding €200 million over the next five years. The initiative aims to reinforce system reliability, expand cross-border connectivity, and enable the integration of new renewable energy projects.
Recent investments have already delivered tangible results. Transmission losses in Montenegro’s high-voltage network have been reduced to 1.6–1.7%, placing the system among the most efficient in Europe and reflecting the impact of sustained capital expenditure.
Several large-scale projects were completed over the past year. These include the overhaul of the Pljevlja 1 substation and the construction of the 150 km Lastva–Pljevlja transmission line, which is expected to enter operation shortly. Once commissioned, this line will close a 400 kV loop within the national network, enhancing operational security for both Montenegro and neighboring systems. Further reinforcements in the northern part of the country include two new 110 kV lines linking Brezna, Žabljak, and Pljevlja, improving supply reliability and enabling the integration of additional renewable power plants.
Another key focus is voltage stability. The Lastva substation upgrade, designed to address persistently high voltage levels, is nearing completion and expected to be operational by the end of January. CGES also plans to build a new 400 kV substation in Brezna, further boosting network resilience and facilitating the connection of substantial new renewable capacity.
Additional projects include cross-border and refurbishment initiatives, such as the reconstruction of the 220 kV line from Bosnia and Herzegovina through Montenegro to Albania, modernization of the HPP Perucica substation, and replacement of transformers at Pljevlja 2.
A flagship regional development is the planned 400 kV interconnection with Serbia, which would complete the Trans-Balkan Corridor. This strategic link is expected to enhance regional electricity flows and provide the technical foundation for a second submarine electricity cable between Montenegro and Italy, further integrating Montenegro’s network into the European electricity market.