FENECON GmbH is a German technology company specializing in electricity storage and energy management systems, playing a significant role in the pursuit of a 100% energy transition. Founded in 2011, the company develops and manufactures modular and scalable energy storage solutions for residential, commercial, and industrial applications. FENECON sets itself apart through its focus on integrating new and second-life batteries from electric vehicles (EVs) and utilizing its proprietary, OpenEMS-based smart energy management system (FEMS).
With over 100 employees, FENECON has delivered more than 20,000 systems and generated over 90 million EUR in turnover, serving customers in over 10 countries. The company’s work supports grid stability, energy independence, and climate protection by enabling the increased use of renewable energy.
Battery Technology
FENECON’s approach to battery technology prioritizes sustainability and resource efficiency. The company primarily utilizes lithium iron phosphate (LFP) batteries for its residential systems, chosen for their inherent safety characteristics and long operational life. For larger commercial, industrial, and grid-scale solutions, FENECON uniquely integrates new, obsolete, and second-life traction batteries sourced from electric vehicles. This strategy not only supports sustainable practices by repurposing batteries but also provides a reliable source of high-quality battery capacity.
Both residential and larger-scale systems feature a modular design, allowing for flexible scaling of energy storage capacity and the integration of batteries from various suppliers. This modularity ensures adaptability to different project requirements and changing battery availability. Central to FENECON’s technology is its Energy Management System (FEMS), built on the OpenEMS platform. FEMS provides intelligent control over battery charging and discharging, supports the integration of electricity, heating, and mobility sectors (sector coupling), and offers grid services. The system can receive over-the-air updates, ensuring it remains current with evolving energy market demands and grid requirements.
Recent Projects
In 2025, FENECON, in partnership with The Mobility House Energy, is set to commission a substantial 48 MWh battery storage facility in Grevesmühlen, Germany. This project is notable for its use of new but unused EV traction batteries, highlighting FENECON’s commitment to circular economy principles. This follows previous large-scale containerized installations in Germany and the USA that also incorporated surplus automotive batteries. Further demonstrating its industrial capabilities, FENECON collaborated with VOSS on the “FENECON Industrial L” system. This system is specifically designed for optimizing industrial energy use and participating in energy markets, and can integrate complete obsolete EV battery modules without requiring disassembly, streamlining the recycling and reuse process.
Investors
FENECON has attracted investment to support its growth and innovation initiatives. Among its equity investors is BayBG, a private equity firm. The company also periodically offers private placement opportunities to potential investors. In a significant development in March 2025, FENECON secured a €40 million syndicated loan. This loan was provided by a consortium of banks, including UniCredit Bank (as the lead arranger), Commerzbank, Norddeutsche Landesbank, DZ Bank, and Sparkasse Deggendorf. These funds are primarily allocated to further advancing FENECON’s technology and supporting its business expansion plans.
Business Details
Location: Iggensbach, Germany; Deggendorf, Germany; Greenville, South Carolina, USA
Website: https://fenecon.de/en/
LinkedIn: https://www.linkedin.com/company/10869323
