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Why we invested in Voltfang

Why we invested in Voltfang
17 May 2023 Written by Till Thietje

Voltfang repurposes decommissioned EV batteries into stationary battery energy storage systems (BESS), addressing both the growing need for grid-scale storage and the waste of end-of-life EV batteries. Instead of relying on newly produced lithium-ion packs, Voltfang sources used battery packs from automotive OEMs and applies a proprietary AI-based testing process to assess key parameters such as remaining state of health (SoH) and expected lifetime.

Modules that meet performance and safety thresholds are reassembled into new commercial and industrial BESS. All module-level data is stored in Voltfang's Battery Cloud and used by the battery management system to optimize operation and ensure a lifetime comparable to first-life BESS. This approach reduces demand for virgin materials, lowers production-related emissions, and makes storage more affordable, directly contributing to SDG 7 (Clean & Affordable Energy) and SDG 12 (Sustainable Consumption & Production).

AENU invested in Voltfang based on the strength of this solution and the founding team—Afshin, David, and Roman—who combine deep engineering expertise with strong commercial execution. Since AENU's pre-seed investment in Q1 2022, the team has demonstrated significant progress in technology development and market traction. Voltfang recently raised a €5M Seed round led by PT1, with participation from AENU, Aurum Impact, Helen Ventures, and Eviny.

Voltfang repurposes decommissioned EV batteries into stationary battery energy storage systems (BESS), addressing both the growing need for grid-scale storage and the sustainability challenges of lithium‑ion production and disposal.

By sourcing used battery packs from automotive OEMs, Voltfang applies a proprietary AI-based testing process to assess key parameters such as remaining state of health (SoH) and expected lifetime. Only modules with sufficiently high remaining capacity are reconfigured into new BESS for commercial and industrial applications. All module-level data is stored in Voltfang’s Battery Cloud, which feeds into the battery management system to optimize performance, safety, and longevity, targeting lifetimes comparable to first-life BESS.

Illustration for Why we invested in Voltfang

This model simultaneously:

  • Reduces demand for new lithium-ion batteries and associated virgin raw materials.
  • Avoids premature scrapping of EV batteries in the absence of large-scale recycling.
  • Expands affordable, decentralized energy storage capacity to better match renewable generation with demand.

Voltfang’s impact aligns with SDG 7 (Clean & Affordable Energy) and SDG 12 (Sustainable Consumption & Production) by enabling cleaner grids and more circular use of battery resources. The company tracks and improves impact KPIs related to material use, emissions, and storage deployment.

Illustration for Why we invested in Voltfang

AENU invested in Voltfang based on both the strength of the solution and the founding team. Founders Afshin Doostdar, David Oudsandji, and Roman Alberti combine engineering expertise with business execution capabilities, and have demonstrated strong technical progress and commercial traction since AENU’s pre-seed investment in Q1 2022. Voltfang has since raised a €5M Seed round led by PT1, with participation from AENU, Aurum Impact, Helen Ventures, and Eviny.

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