Freqcon Amper Group

Freqcon Amper Group GmbH develops and manufactures advanced frequency converters and innovative energy storage solutions. As a German manufacturer with its own research and development department and production facilities in Rethem, we combine technological expertise with high-quality standards. The systems feature a modular and scalable design, allowing them to be optimally adapted to different project requirements. Since August 2026, Freqcon Amper Group GmbH has been part of GRUPO AMPER. This enables us to combine nearly 40 years of expertise in converter technology, battery energy storage systems and ultracapacitors at Rethem with the strength and resources of a globally operating technology group.