Taken from Renewables Now written by Martina Markosyan on August 25th, 2025

German battery storage systems provider Voltfang has inaugurated its manufacturing facility in the city of Aachen, which it says is the largest second-life battery factory currently in operation in Europe.

Image credits: Voltfang.

The opening ceremony for the Voltfang Future Fab was attended by Hendrik Wüst, Minister-President of North Rhine-Westphalia, who praised the project as an example of how sustainable innovation can provide real momentum and strengthen the competitiveness of local industry.

Voltfang uses both second-life and surplus batteries, including those from automotive industry overproduction, instead of relying on newly mined materials, helping reduce imports of unsustainably sourced rare raw materials. Previously operating on a workshop scale, the company has set a goal of delivering 250 MWh of storage capacity by the end of 2026.

In July, Voltfang signed an aval agreement with Commerzbank for EUR 3 million to expand its financing structure and accelerate growth. This followed a EUR-15-million Series B fundraising round closed in June.

Earlier this year, the German start-up initiated the construction of a 9.5-MW/20.34-MWh grid-serving storage facility in North Rhine-Westphalia.