Voltfang is a German startup that builds modular, high-performance stationary battery storage systems by repurposing used electric vehicle (EV) batteries—known as "2nd life" batteries—and incorporating new, unused automotive-grade modules ("new life" batteries).[1][2][4][5] It serves commercial and industrial customers like Aldi Nord, McDonald's, Schaltbau, logistics firms, and airports, solving grid strain from renewables by enabling on-site energy storage for solar setups, heat pumps, EV chargers, and peak shaving, while cutting costs, emissions, and reliance on imported raw materials.[1][3][4][5] With ~80 employees, Voltfang has tripled output recently, secured €15M funding in 2025 to scale to 250 MWh by 2026 and 1 GWh by 2030, and offers 10-year warranties with cell-level monitoring via AI-driven testing and proprietary energy management software (EMS).[1][3][5]
Voltfang emerged as a 2020–2021 spin-off from RWTH Aachen University in Aachen, Germany, founded by engineering students David Oudsandji, Roman Alberti, and Afshin Doostdar.[1][2][3] The idea sparked when Oudsandji and his co-founders converted a campervan to energy independence using second-life battery modules, igniting their passion for sustainable battery tech amid Europe's EV boom and raw material shortages.[2][4] They progressed from prototype testing to sourcing batteries from manufacturers and fleets (e.g., bus companies), developing plug-and-play assembly, AI-based lifetime prediction, and EMS integration; early milestones included first investors, customers, hires, and now major clients like Aldi.[1][2]
Voltfang rides the energy transition wave, capitalizing on surging renewables (solar/wind), e-mobility growth, and EU mandates for circular economies amid raw material scarcity and grid instability.[1][3][4] Timing is ideal post-2020 EV adoption surges, which flooded markets with high-quality used batteries just as stationary storage demand exploded for buffering intermittent power and enabling high-power EV charging on weak grids.[2][3] Favorable forces include Germany's NRW startup ecosystem, automotive overproduction, and policies prioritizing reuse over destructive recycling; Voltfang bolsters Europe's supply chain resilience, influences logistics/retail electrification (e.g., Fiege Group partnership), and pioneers scalable storage to cut surplus energy waste.[1][3][4]
Voltfang is poised to dominate Europe's C&I battery storage niche, leveraging €15M to hit 1 GWh capacity by 2030 amid booming demand from net-zero goals and grid upgrades.[3] Trends like AI-optimized grids, falling EV battery costs, and regulatory pushes for second-life tech will accelerate growth, potentially expanding to hyperscale data centers or microgrids. Its influence may evolve from pioneer to ecosystem shaper, partnering deeper with OEMs for battery pipelines and exporting modular tech EU-wide—turning yesterday's campervan hack into a grid-stabilizing powerhouse.[1][2][3]
Voltfang has raised $26.0M in total across 2 funding rounds.
Voltfang's investors include FORWARD.one, AENU, Earlybird Venture Capital, Galvanize Climate Solutions, Norrsken VC.
Voltfang has raised $26.0M across 2 funding rounds. Most recently, it raised $17.0M Series B in June 2025.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Jun 1, 2025 | $17.0M Series B | FORWARD.one | |
| Oct 1, 2024 | $9.0M Series A | AENU, Earlybird Venture Capital, Galvanize Climate Solutions, Norrsken VC |
