Feb 22, 2023 | Ship classification news

ABS has issued New Technology Qualification (NTQ) for what it describes as a groundbreaking, non-flammable battery technology for use at sea.

Called Blue G, the vanadium redox flow battery system from Singapore-based Gennal Engineering is now planned to move into prototype testing later this year. The Blue G battery comprises a water-based electrolyte solution, storage tank, stack cell and regulating pump. The process of charging and discharging energy does not produce excess heat – considered a unique feature of the system.

Gareth Burton (pictured), ABS VP Technology said: “Vanadium redox technology is a potential game changer in the application of batteries at sea. It has the advantages of a long lifespan, greatly improved energy capacity and an improved safety profile as a non-flammable product. This technology is one that has the potential to accelerate the energy transition in the maritime industry, supporting global decarbonisation goals.”

Gennal highlights advantages of its system including scalability and a longer lifespan – more than 25 years, which is double that of a typical lithium-ion battery. Gennal also emphasises the battery design’s recyclable feature showing that the vanadium electrolyte is easily extracted and recycled when the Blue G battery is decommissioned.

 Alex Peck, Director, Gennal Engineering said: “We are glad to be partnering with ABS in achieving this qualification for Blue G. It reflects the confidence ABS has in Gennal in helping the industry to accelerate forward toward marine decarbonisation.”

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