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Energy storage

Elestor – electricity storage

Elestor has developed flow batteries with an extensive lifespan that can store electricity safely and at a fraction of the cost of traditional batteries.


Revolutionary low-cost electricity storage in a hydrogen-bromine flow battery

Hydrogen bromine flow battery.

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The need

Given the unpredictability of renewable energy producers such as sun and wind, grid owners are looking for cost-effective means of storing electricity. This is essential to solve issues such as instability and overload of the electricity grid.

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The solution

Elestor electricity storage systems are based on hydrogen bromine flow battery technology. Originally developed by NASA, Elestor has further engineered the concept to enable its use in a wide variety of grid and industrial applications.

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The value proposition

  • Fast reaction kinetics, resulting in very short response times.
  • High accessibility, enabling easy maintenance and updates.
  • Independent configuration of storage power (mW) and capacity (mWh).
  • Modulary scalable, up to 10s of MW and 100s of MWh
  • No self-discharge when system is idle.
  • Storage costs per mWH 5-10 times lower than incumbent systems.

Bromine & redox-flow batteries for easier energy storage

In this video we focus on one of today’s biggest challenges in the ongoing energy transition: effective and sustainabe capture and storage of electrical energy for future use. BSEF traveled to the Netherlands to chat with Wiebrand Kout, Ing. and CTO of Elestor, a Dutch high-tech company operating in the electricity storage industry. They are developing bromine-based technologies that will facilitate the storage of renewable energy on a large scale
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Elestor and Vopak: Providing large-scale, long-term electricity storage solutions for the grid

Learn how our portfolio company, Elestor, works with Vopak, the largest independent tank storage company to provide large-scale electricity storage for the grid.
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TBB.2022 Pitching sessions – Elestor

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