Trevor Small

Small brings expertise in established and emerging industrial sustainable and decarbonization technologies, focusing on zero-emission and hybrid solutions. His specialization includes battery energy storage, shore charging and connections, fuel cells, future fuels and containerized solutions tailored for the maritime industry.

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Presentation

Calendar life degradation and how to size for it

Nickel-manganese-cobalt (NMC) and lithium titanate oxide (LTO) batteries have emerged as frontrunners in marine energy storage solutions. Despite their potential, they suffer from calendar life degradation. This not only undermines battery efficiency but prompts operators to preemptively oversize installations. This inflates costs and environmental impacts. The assumption that excess capacity will offset the inevitable decline, however, overlooks critical factors like the effects of intermittent charging, depth of discharge preferences and temperature variations, which collectively can lead to premature capacity loss, thereby nullifying the perceived safety net of oversizing. A paradigm shift is warranted in marine battery sizing: from a conservative stance to an informed, analytical one. Emphasizing the intricacies of calendar life and the factors affecting it allows for a balanced solution that promotes both economic and environmental sustainability. This presentation invites the maritime industry to embrace a strategy that enhances the long-term viability and performance of marine energy storage systems.