Innovative battery energy storage systems at the Energy Industry Meeting
Future-proof energy supply through battery energy storage systems
From February 11 to 13, 2025, E-world energy & water will once again open its doors at the exhibition center in Essen. As Europe’s leading trade fair for the energy industry, it provides an unparalleled platform for professionals and experts from over 30 countries and more than 920 exhibitors. Since 2001, E-world has been regarded as a central industry meeting point for the European energy sector, bringing together experts and specialists from around the world.
It showcases innovative technologies and solutions in the fields of energy, water management, and renewable energies. The focus of this important trade fair lies on topics such as the energy transition, grid infrastructure, climate protection, as well as forward-looking approaches including hydrogen technologies and the integration of artificial intelligence into energy supply.
Exciting…
Topics not to be missed. In addition to a total of 175 presentations, the trade fair offers ample opportunities for networking with industry colleagues, exchanging ideas, and engaging in constructive discussions on possible solutions to the challenges of the energy future.
We, FREQCON, are pleased to present our innovative solutions as an exhibitor for the energy transition at E-world energy & water in Hall 5, Booth F131. As a leading German manufacturer of frequency converters for renewable energy and high-performance energy storage solutions, we offer a broad portfolio of products that can be flexibly tailored to a wide range of customer requirements.
From compact energy storage systems with 500 kW output to scalable large-scale projects exceeding 50 MW, our systems enable a future-proof energy supply. At the core of our portfolio is our innovative multi-source converter, which impresses with its modularity and adaptability. It supports various battery chemistries and meets international grid requirements, while our flexible software platform seamlessly integrates new storage applications and grid certifications.
Be inspired by our solutions for a reliable future energy supply and take the opportunity at E-world to discuss your specific requirements with us. We look forward to engaging discussions and to shaping the energy solutions of tomorrow together.
The diversity of FREQCON’s battery storage systems
The turnkey complete solutions provide reliable, safe, and flexible battery storage systems from our partners CATL, Hithium, and EVE, perfectly tailored to the requirements of modern energy systems.
Our centerpiece? The multi-source converter!
Our battery storage systems are distinguished by the innovative multi-source converter. This key module offers:
- High modularity and flexibility to optimally meet your storage requirements.
- An impressive nominal service life of >20 years, ensuring sustainability and long-term economic efficiency.
- Certifications for various grid codes, including VDE-AR-N 4110 and VDE-AR-N 4120, ensuring the highest level of grid security.
Flexibility for every application
Our converters are designed to support a wide range of battery chemistries and voltage levels. Thanks to the flexible software architecture, new storage applications can be easily integrated. In addition, we continuously qualify for upcoming grid certifications in various countries.
Scalable, tailor-made solutions
Whether 500 kW or over 50 MW: we provide project-specific battery storage solutions precisely tailored to your requirements. This enables use in a wide range of applications – from industrial storage systems to large-scale energy transition projects.
Quality made in Rethem, Germany
Our battery storage systems are manufactured in Rethem (Lower Saxony). With the highest quality standards and forward-looking production, we provide you with a product that excels both technically and environmentally.
Learn more?
For any questions or further information about our systems, we are always available. Simply click the contact button or use the contact form at the bottom of the page – our team will be happy to advise you personally.
BESS FQ
- sustainable and cost-effective turnkey battery storage systems
- consisting of our MSC hybrid converters and flexibly configurable battery storage systems
- The focus is on the manufacturers CATL, Hithium, and EVE.
- Compliance with all required regulations
- Flexible energy storage solution with high-quality LiFePO4 batteries
- Compact, modular solution in an ISO container
BESS EV
- Development of a highly secure energy storage solution for power producers and industrial applications in collaboration with Mercedes-Benz Energy
- consists of an MSC hybrid converter, battery modules using second-life vehicle batteries from Mercedes-Benz Energy, a battery management system, and the corresponding protective components.
- Performance Level D (EN ISO 13849-1)
- Design of the converter for >180,000 operating hours
BESS Custom
- Connecting your own battery modules and cabinets to our MSC
- Integration of various battery technologies possible (Na-ion batteries, LFP, etc.)
- Connecting second-life batteries
- Implementation of hybrid projects
- Worldwide application possibilities
- Design of the converter for >180,000 operating hours
- Compliance with all required grid connection conditions
Independent power supply with FREQCON systems
Since its founding in 1988, FREQCON has been led by Norbert Hennchen, who, as managing director and founder, has successfully guided the company. With a deep understanding of renewable energy and innovative storage solutions, FREQCON has established itself as one of the leading German manufacturers in this industry.
Our energy systems set the standard for sustainability and future-proofing. Thanks to our extensive expertise in energy storage technology and numerous successfully implemented projects, we offer solutions that are not only environmentally friendly but also provide long-term economic benefits.
Choose FREQCON now – a company with over 35 years of expertise, committed to leading the development of sustainable energy systems and delivering innovative energy storage solutions for a greener future.
“We are convinced that we can drive the energy transition
together and convert our system to 100%
renewable energy.” – Norbert Hennchen
Further information about our battery storage systems or ultracapacitor systems
Our turnkey battery storage systems provide reliable, safe, and flexible solutions, individually scalable from 500 kW up to over 50 MW. At the core is our durable and sustainable multi-source converter, which ensures maximum flexibility for different battery chemistries and grid requirements.
Want to learn more about the different battery storage systems and their benefits? Just click here.


