Nordex Strengthens Grid Expertise: New Converter Test Bench in Rostock Accelerates Turbine Development - Spain Order - Share Price Up
Hamburg/Rostock (Germany) - The Nordex Group has officially commissioned a state-of-the-art generator converter test bench in Rostock, enabling comprehensive testing of the electrical system of modern wind turbines. With this, the wind turbine manufacturer is enhancing its development and testing capabilities for demanding international grid requirements.
New test bench strengthens Nordex’s grid integration expertise
By inaugurating the state-of-the-art generator converter test bench in Rostock, the Nordex Group is setting a technological focus on grid integration. The investment of more than 4 million euros aims to accelerate the development of in-house converter solutions and make the company less dependent on field tests.
Converters play a central role in the electrical system of wind turbines: they convert the generated electricity so that it meets grid requirements, regulate frequency and voltage, and thus contribute significantly to grid stability. At the same time, they must adapt to differing international grid codes. “With the new test bench, we at Nordex are strengthening our ability to develop our own converter solutions to meet the changing international requirements of continuously growing grid connection specifications; the grid codes. We're testing under real-world conditions in Rostock to ensure our systems’ reliability and grid compliance,” explains Helmut Resing-Wörmer, Head of Test and Prototype.
The technology is becoming increasingly important for power grids, as converters play a key role in implementing grid-forming strategies that are crucial for the stability of future grids.
PHIL technology enables early grid simulations
Until now, grid connection tests have been carried out exclusively in the field on a turbine prototype, which is time-consuming and complex. The new power-hardware-in-the-loop (PHIL) test bench, however, enables extensive simulations at a very early stage in the development process. Parameters such as frequency fluctuations, voltage dips, and various grid faults can be tested under realistic conditions and validated measurement results can be obtained.
These simulations allow Nordex to shorten development time and make technical adjustments more efficiently. “We’re laying the groundwork for flexible, tailored grid integration solutions, thereby ensuring the future viability of our products,” adds Dr. Christian Wessels, VP Global Electrical Engineering. Field tests will still be required, but preliminary tests should make them more efficient.
The test bench was built together with international and regional partners, including R&D Testsystems (Denmark), Ingeteam Power Technology (Spain), and regional and local companies such as Ingenieurbüro Wollboldt, GTN Getriebetechnik Nord and WISAG Elektrotechnik. Technical support was also provided by the RKL Rostock Power Electronics Competence Centre and the University of Rostock. According to Resing-Wörmer, a dynamic network around grid integration and stability has developed in Mecklenburg-Vorpommern.
Repowering order in Spain: Six turbines for Caparroso
Nordex also reported a new order from Spain this week. For the repowering of the Caparroso wind farm in Navarra, the company will supply six N163/5.X turbines with a total of 34.2 MW. The customer is Grupo Enhol; installation is scheduled to begin in July 2026, with commissioning planned for February 2027. A 20-year premium service contract is part of the project.
Nordex share price up
During the first four trading days of this week, the Nordex share rose by 3.2 percent to 26.46 euros (closing price 27 November 2025). Compared with the beginning of the year, Nordex is thus showing a price increase of around 134 percent.
Source: IWR Online, 28 Nov 2025
