The energy landscape in North Macedonia has taken a significant step forward with the successful trial operation of the modernized Bitola–Prilep power transmission line. This upgraded 110 kV transmission line, which has been operational for over 50 years, underwent extensive reconstruction and was re-energized at the end of 2025, representing a critical enhancement to the nation’s electricity infrastructure.
This project involved the connection between the Bitola 1 and Prilep 1 substations along the existing route. The previous reinforced concrete towers were dismantled and replaced with robust steel lattice pylons, thereby significantly improving both reliability and structural integrity of the line.
The newly constructed line spans 33.5 kilometers and is supported by 125 steel towers. Alongside this structural upgrade, a comprehensive renewal of the electrical system was undertaken, which included new phase conductors, ground wires, insulators, and auxiliary equipment. These enhancements are expected to markedly boost electrical performance and mechanical resilience.
According to the national transmission system operator, MEPSO, this modernization will enhance the safety, stability, and operational flexibility of North Macedonia’s national grid. The upgraded corridor is anticipated to play a pivotal role in improving system reliability while accommodating future increases in electricity demand.
The reconstruction project was part of Lot 1 of MEPSO’s comprehensive grid investment program and was financed through a loan from the European Bank for Reconstruction and Development (EBRD). The construction, electrical installation, and engineering work were executed between 2023 and 2025 by a consortium led by Croatian firm Dalekovod, which adhered to all contractual and technical requirements throughout the project.
Following thorough inspections and successful testing phases, the line has now been energized and placed into trial operation. MEPSO emphasized that this initiative is part of its ongoing strategy to systematically upgrade and reinforce North Macedonia’s transmission infrastructure, thereby enhancing the security of electricity supply while increasing overall capacity and robustness within the national power system.
