Sustainable Power Grids: Green Transition at NexusNow 2025
23 May, 2025
As part of NexusNow 2025 in Salzburg, program director David Fellner explained the profound changes in network structure brought about by the energy transition. The presentation introduced innovative approaches to network control, decentralization, and storage.
As part of Copa Data’s industry event NexusNow 2025 on May 7, 2025, David Fellner, program director of the bachelor’s and master’s programs in Renewable Energy at UAS Technikum Wien, highlighted the latest developments in grid expansion in the context of the energy transition. His presentation was entitled “Renewable Energy and Grid Expansion: The Green Transition – How We Integrate Electricity from the Future into Our Grid.”
Technical and organizational responses to new demands on the power grid
The focus was on how the structure of our electricity grid is changing – and what technical and organizational responses can be found to new requirements. Historically, the electricity grid has evolved from decentralized direct current systems to large-scale interconnected alternating current grids. Today, the increasing feed-in of renewable energies, electromobility, and new consumption loads are bringing greater decentralization back to the grid.
This development brings with it profound challenges: Grid operators must maintain stable voltage and frequency, even though many new generators and consumers feed energy into the grid or draw energy from it unpredictably. At the same time, the availability of electricity must be ensured at all times – even when feed-in fluctuates greatly.
Making grids more robust, adaptive, and sustainable
Fellner presented various strategies as possible solutions. These include intelligent voltage control, continuous monitoring of the grid situation, the use of flexibility on the generation and consumption side, the expansion of storage capacities, and the use of modern direct current grids in suitable applications. All these measures contribute to making grids more robust, adaptive, and sustainable. Many solutions and concepts can be tested and their functionality demonstrated in the FHTW’s Hybrid Energy Lab. The presentation was rounded off by a look at the capabilities of this infrastructure and its potential use in supporting the development of sustainable energy solutions.
NexusNow 2025 provided a platform for leading minds from industry and the energy sector to discuss key topics for the future, including digitalization, twin transition, artificial intelligence, and cybersecurity. The event thus addressed key levers for future viability and competitiveness in a dynamic energy system.
Presentation available for download:
David Fellner – NexusNow: “
Further links:
Bachelor’s program in Renewable Energies
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