Voltfang

Voltfang's core business involves requalifying used EV batteries that retain significant capacity (often over 80%) and integrating them into modular storage systems for commercial, industrial, and grid-scale applications. The company also utilizes 'New Life' batteries, which are new, unused modules from overproduction in the automotive industry. This approach extends the life of batteries, reduces the environmental footprint associated with new battery production, and creates a more sustainable energy storage solution.

The company's product offerings are designed for various use cases, including optimizing self-consumption of renewable energy, managing peak load demands to reduce energy costs, providing emergency power, and supporting EV charging infrastructure. Voltfang has developed its own AI-integrated energy management system, Venma, to intelligently control the storage systems, enabling participation in energy markets and maximizing economic benefits for customers. Their systems are scalable, ranging from 33 kWh to over 1 MWh, and are available in both indoor and outdoor turnkey solutions.

Since its inception, Voltfang has achieved significant growth, securing a total of $31.8M in funding over multiple rounds, including a €15 million Series B round in June 2025. The company serves notable clients like Aldi Nord, Alba Group, and Goldbeck. In 2025, Voltfang opened a new 6,000 m² production facility in Aachen, described as Europe's largest second-life battery factory, with plans to scale production capacity to 1 GWh annually.