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VoltStorage

  • BVC Downstream, Energy Storage Applications, Stationary Battery Deployment
  • Flow Battery, Iron Salt Battery

VoltStorage GmbH in Munich since 2016 specializes in sustainable energy storage with its innovative Iron Salt Battery technology. Serving energy providers and industrial enterprises, VoltStorage offers scalable, long-duration, and environmentally responsible solutions backed by significant investment and global expertise.

Company Location

Country:

Germany

City:

Munich

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Company Overview

VoltStorage GmbH, founded in 2016 in Munich, Germany, specializes in sustainable energy storage solutions using its Iron Salt Battery technology to provide 24/7 renewable base-load power for energy providers, grid operators, and industrial enterprises, supported by an international team from nearly 20 countries.

Battery Technology

VoltStorage’s Iron Salt Battery technology is a flow-based long-duration energy storage system using iron and salt, offering over 10,000 charge cycles without capacity loss, non-flammable components, flexible scalability, up to 100 hours of storage, no rare earths or conflict minerals, complete recyclability, and planned utility-scale deployment starting in 2025.

Products

Utility-scale Iron Salt Battery system engineered for over 10,000 charge cycles, non-flammable operation, scalable performance and capacity, full recyclability, and up to 100 hours of energy storage for renewable intermittency management.

Recent Projects

Preparation for first pilot installations of the Iron Salt Battery technology scheduled for early 2027, including enhancements to the battery health management system and implementation of automated test systems to advance technology readiness.

Investors

VoltStorage secured €30M in venture debt from the European Investment Bank and raised €24M in Series C funding led by Cummins Inc. Additional investors include Korys Investments, EIT InnoEnergy, Bayern Kapital GmbH, SOSV, and Energie 360°. The company’s total funding to date is $65.5M.
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