Candidate for Project of
Common Interest Status

partners partners

Status: Planning phase

Date of commissioning: 2028

General Information

GreenSwitch will optimize use of the existing power infrastructure and allow the integration of new technologies and advanced functionalities in the transmission and distribution networks in Austria, Croatia and Slovenia.

Distributed renewable sources, increased peak consumption by electric vehicles and heating have recently become challenging due to the rise in power flows on the distribution and transmission grid. Operators are therefore now facing higher investment needs. Partners from Austria, Croatia and Slovenia have balanced the opportunities and risks associated with a modern cross-border approach to grid development, and decided that only together can they solve the problems arising from their exceptional challenges and limited resources.

The GreenSwitch project will invest in primary infrastructure to achieve maximum output and implement a smart-grid toolbox of different technologies, platforms and functionalities. This will be combined with storage and highly digitalized information systems. As flexible load and generation are crucial for future grid development and coordinated optimization at TSO-DSO level, GreenSwitch will enable prosumers to get to the frontline of power system operation.

See Goals


A resilient decarbonization-ready power network

The main goals of the GreenSwitch project are to optimize grid investment and to enable the integration of an increasing quantity of dispersed resources.

See Activities

Increase hosting capacity for distributed renewable sources.

Optimize grid investment.

Improve observability of the distribution network.

Increase cross-border capacity.

Efficiently integrate new loads.

Improve supply quality.

Coordinate flexibility in procurement and supply.

Make optimal use of the infrastructure.


Modernization and digitalization of the distribution and transmission energy systems in Austria, Croatia and Slovenia.

The GreenSwitch project will provide additional cross-border capacity and optimization of grid operation, extending to lower voltage levels. Many new technologies and techniques will be rolled out on this project, including locational use of battery storage, power flow prediction and control systems, an optimal supply of physical islands, and an advanced approach to providing distribution grid resilience by cross-border connection. These technologies and techniques will secure customers’ energy supplies in border areas in emergency conditions. Cross-sector integration in mobility and heating is also a rare example of innovative technology implementation in the power system.
The result will be a grid that is better prepared for the expected large additional loads and renewable energy sources.

See Consortium


Creating synergies by the dedicated siting and design of infrastructure and operational solutions

Transmission and distribution systems and network operators from Austria, Croatia and Slovenia have a long history of cooperation, both cross-border between TSOs and between DSOs, and within each country between TSO and DSO.



KNG-Kärnten Netz GmbH

Arnulfplatz 2, 9020 Klagenfurt, Austria


ELES, d.o.o.

Hajdrihova ulica 2, 1000 Ljubljana, Slovenia

Elektro Ljubljana d.d.

Slovenska cesta 56, 1000 Ljubljana, Slovenia

GEN-I, trgovanje in prodaja električne energije, d.o.o.

Vrbina 17, 8270 Krško, Slovenia

Elektro Gorenjska, podjetje za distribucijo električne energije, d.d.

Ulica Mirka Vadnova 3a, 4000 Kranj, Slovenia

Elektro Celje, podjetje za distribucijo električne energije, d.d.

Vrunčeva 2 A, 3000 Celje, Slovenia


Hrvatski operator prijenosnog sustava d.o.o.

Kupska 4, 10 000 Zagreb, Croatia

HEP Operator distribucijskog sustava d.o.o.

Ulica grada Vukovara 37, 10 000 Zagreb, Croatia

Hrvatska elektroprivreda d.d.

Ulica grada Vukovara 37, 10 000 Zagreb, Croatia