Romania’s transmission system operator Transelectrica has completed a major infrastructure upgrade in Caraș-Severin County, officially commissioning a new 400 kV transformer station in Reșița alongside the modernization of an existing 220/110 kV substation.
The project, worth €35.4 million (excluding VAT), was fully financed from Transelectrica’s own resources. Construction was carried out by a consortium led by Siemens Energy, together with Electrogrup and Retrasib, supported by subcontractors Energotech and Dacom Impex. The works included the development of a new 400 kV facility and the complete upgrade of existing transmission infrastructure at the site.
The Reșița node plays a strategic role in western Romania’s electricity system, forming part of the Banat high-voltage transmission corridor. It supports power flows connecting Porțile de Fier, Reșița, Timișoara, and Arad, which are key elements of regional electricity transmission and system stability.
Transelectrica is also advancing several related investments aimed at completing the transition to a full 400 kV transmission corridor across the wider Porțile de Fier–Reșița–Timișoara–Săcălaz–Arad axis. These projects are designed to strengthen grid resilience and improve the capacity of Romania’s western electricity network.
According to company management, more than €120 million in investments have already been implemented or are currently underway in western Romania. These projects aim to improve network reliability, expand capacity for new electricity producers, and enhance connections for large industrial consumers.
The infrastructure expansion also strengthens cross-border transmission capability with Serbia, where exchange capacity has reached up to 1,000 MW. Recent strategic projects include the 400 kV Reșița–Pancevo interconnection and the Porțile de Fier–Anina–Reșița line, both considered critical for regional energy integration.
Transelectrica is additionally developing a new 400 kV corridor from Reșița toward Timișoara and Săcălaz, extending to Arad, which forms part of Romania’s western high-voltage energy ring and is supported through the Modernization Fund.
The company has also secured shareholder approval for a 2026 investment budget of around €184 million, marking a 30% increase year-on-year. Looking ahead, Transelectrica aims to further accelerate investments, with annual spending projected to reach approximately €262 million in the coming years.
