Image source: Austrian Power Grid

Austria has taken a significant step in strengthening its electricity network with the commissioning of a new high-voltage substation in Matrei, East Tyrol, creating a critical second connection point for the region.

The project, delivered by Austrian Power Grid (APG) in partnership with TINETZ, introduces a 380/110 kV substation designed to improve grid reliability, capacity, and renewable integration.

The 380/110 kV transformer deployed at the Matrei substation is a high-capacity unit rated at approximately 200 MVA. The transformer itself has a transport weight of around 236 tonnes, while the complete heavy-load transport reached approximately 489 tonnes. The unit measures roughly 12 metres in length, 4 metres in width, and 5 metres in height. 

The new substation establishes a second link between the regional 110 kV network and the national 380 kV grid, significantly enhancing supply security for the Iseltal valley and the wider East Tyrol region.

Previously, the region relied on a single connection via the Lienz substation. The addition of the Matrei facility reduces vulnerability to outages and increases system resilience.

The project represents an investment of approximately €46.5 million (~$50 million USD) and forms part of Austria’s broader efforts to modernise its electricity infrastructure.

In addition to improving reliability, the substation will enable more efficient transmission of locally generated renewable energy, including hydropower and solar, supporting Austria’s energy transition goals.

The facility includes both 380 kV and 110 kV switchgear systems, allowing for flexible operation across voltage levels and ensuring stable electricity flow between regional and national networks.

The commissioning of the Matrei substation highlights the growing importance of grid reinforcement and substation development in maintaining reliable electricity supply, particularly in regions with increasing renewable generation and seasonal demand fluctuations.

As electricity consumption continues to rise and energy systems become more decentralised, investments in high-voltage substations and transmission infrastructure are playing a central role in building resilient and future-ready power networks.

Source: apg.at