The German-Dutch grid operator TenneT has commissioned Siemens Energy to supply three grid stabilization systems for the German power grid. Such solutions are necessary because conventional power plants not only generate electricity but also automatically stabilize the grid (via their physical behavior). As more and more conventional power plants are taken off the grid and replaced by electricity from decentralized renewable energy sources as part of the energy transition, transmission system operators will have to find alternative solutions to transport more energy while maintaining overall stability. Two of the three systems are synchronous condenser. A synchronous condenser essentially consists of a generator and a flywheel. The generator sets the flywheel in rotation. As a result, kinetic energy is stored that can then e.g. feed active power into the grid for stabilization when needed. Siemens Energy will build the synchronous condenser in Großkrotzenburg (Hesse) and Würgassen (North Rhine-Westphalia). TenneT is currently modernizing the substation in Würgassen, followed by Großkrotzenburg in the next years, to make them fit for the energy turnaround as important network hubs.
Siemens Energy is one of the world’s leading energy technology companies. The company works with its customers and partners on energy systems for the future, thus supporting the transition to a more sustainable world. With its portfolio of products, solutions and services, Siemens Energy covers almost the entire energy value chain – from power generation and transmission to storage. The portfolio includes conventional and renewable energy technology, such as gas and steam turbines, hybrid power plants operated with hydrogen, and power generators and transformers. More than 50 percent of the portfolio has already been decarbonized. A majority stake in the listed company Siemens Gamesa Renewable Energy (SGRE) makes Siemens Energy a global market leader for renewable energies. An estimated one-sixth of the electricity generated worldwide is based on technologies from Siemens Energy. Siemens Energy employs around 91,000 people worldwide in more than 90 countries and generated revenue of €28.5 billion in fiscal year 2021.