Traditional flow batteries often rely on highly acidic and corrosive electrolytes, which create safety and maintenance constraints. Kemiwatt’s technology uses an alkaline, non-corrosive chemistry with organic redox molecules dissolved in water. This leads to:
Kemiwatt’s technology is a water-based organic redox flow battery designed for several hours of storage, high safety and easy scaling from pilot systems to port-scale infrastructures. Flow batteries store electricity in liquids circulating between tanks and electrochemical stacks. In Kemiwatt’s case, the electrolytes are aqueous solutions containing organic molecules rather than metal-based ions. During charge and discharge, these molecules change their oxidation state and store or release electrical energy. This architecture separates power (the stacks) from energy (the tank volume), which is a major advantage for large-scale, long-duration storage. Combined with the absence of heavy metals, rare earths and precious metals, this chemistry makes system integration and permitting in ports and terminals easier. Kemiwatt offers adaptable energy storage solutions, from long-duration systems to large-scale infrastructure. By using flexible sizing and existing tanks, it enables efficient, scalable energy storage for various industries while supporting the energy transition. Because energy is stored in separate tanks, increasing storage duration simply means increasing the volume of electrolyte. Systems can therefore be designed for several hours of storage to shift loads, relieve the grid or integrate renewables, without changing the power blocks of the battery. The same standardized building blocks can be used and aggegated for a wide range of projects, from smaller industrial sites to multi-megawatt-hour systems for ports and tank terminals. In port and terminal environments, land and storage capacity are strategic assets. With the energy transition, part of this capacity becomes available as fossil fuel volumes decrease. By connecting a flow battery infrastructure to these existing tanks, Kemiwatt makes it possible to store megawatt-hours of electricity as a liquid. This approach maximises reuse of existing infrastructures and creates a direct link between the energy transition and new electricity-based business models for terminal operators developing a circular and low carbon economy. Kemiwatt develops standardised building blocks for stacks, balance of plant and electrolyte management to ease replication and scaling. The company relies on Tier 1 industrial partners for manufacturing critical components and collaborates with academic laboratories on electrolytes and membranes to continuously improve performance and lifetime.
Technology
Aqueous organic flow batteries for long-duration storage.
Advancements in energy storage technology
What is an organic flow battery
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Designed for safe operation
Safe, water-based chemistry
No fire or explosion hazard, reinforcing safety for ports and surrounding populations
Reduced corrosion of equipment
Stable operation in typical industrial ambient temperatures
Revolutionizing energy storage for diverse applications
Flexible, scalable, and sustainable storage solutions
Long-duration storage and flexibility
From tanks to mega-batteries
Industrialisation and ecosystem
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