Battery storage startup Voltfang secures €15 million investment
Voltfang intends to use the fresh capital to significantly scale production capacity, targeting an additional 250 MWh of storage deployment by the end of 2026. According to German media, the company has tripled output over the past year. It now plans to increase capacity at its Aachen facility from the current 100 MWh to 1 GWh by 2030.
The new Series B round was once again led by Dutch deeptech investor FORWARD.One, who also spearheaded the Series A in October. Returning investors include Interzero, PT1, Helen Ventures, Daphni, and Aurum Impact (the family office of the Goldbeck family). New participants include Fiege Ventures and Newberry Investments.
“Voltfang provides logistics companies with exactly what they need for the future: a technologically robust, environmentally sound, and economically scalable solution,” said Jens Fiege, CEO of the Fiege Group. “With our investment, we’re not only providing capital—we’re also bringing our infrastructure and expertise to the table to help advance efficient energy storage in logistics.”
Founded in 2021 as a spin-off from RWTH Aachen, Voltfang specialises in stationary battery storage systems. Its technology is already in use by customers such as Aldi Nord, McDonald’s, and Schaltbau. The company originally gained attention for repurposing used electric vehicle batteries for second-life applications.
However, Voltfang no longer relies solely on second-life batteries. As demonstrated by a recent installation at Stuttgart Airport, the storage system there uses what the company describes as ‘new life’ batteries – unused automotive-grade battery modules that were never deployed due to overproduction or lack of demand during the early stages of EV adoption.
In its latest funding announcement, the term “second life” is notably absent. Instead, Voltfang states it contributes to energy security through the use of “high-performance, requalified battery modules sourced from the European automotive industry,” thereby supporting the development of a resilient energy infrastructure.
Battery storage is essential to buffer electricity generated by solar and wind, storing surplus energy when generation exceeds demand and releasing it when needed. In the context of e-mobility, it can support high-power charging in areas with only low-voltage grid connections.
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