Batteries developed for lower capex, quick installation

Elsewhere, Echandia has unveiled Echandia Core, a new modular ESS built on lithium titanium oxide (LTO) chemistry for fully electric and hybrid vessel applications.

The Swedish manufacturer said Echandia Core provides safety and predictable performance, with a lower upfront investment and a small installation footprint.

It added that LTO technology is highly competitive over the full lifecycle of a vessel, due to its long service life, minimal degradation and high operational reliability.

Compared with Echandia’s previous ESS offerings, it delivers 30% lower upfront cost and a 30% smaller footprint, the company said.

“LTO has always made a very strong case when you look at total cost of ownership,” said Echandia chief executive, Magnus Eriksson.

“Its long lifetime, fast charge and discharge capability, and low degradation are what many marine operators need,” he said.

Echandia Core can be used for full electric propulsion or hybrid applications, including spinning reserve, peak shaving, back-up power and load levelling. It complements Echandia’s existing products, Echandia Ultra and Echandia Robust.

It supports system configurations of up to 1,500 V of direct current with a current rating per string of 500 A, energy per 63-kg module of 5,216 Whr and operational temperature between zero and 55˚C. Its lifetime supports 65,000 cycles and 3C charge and discharge rates.

Meanwhile, Corvus Energy has signed a strategic co-operation agreement with BYD Energy Storage to co-develop a new generation of marine ESS based on lithium iron phosphate (LFP) batteries. BYD will manufacture battery cells and Corvus said it will provide its experience in marine system integration to develop a low-cost, safe and reliable ESS optimised for maritime environments.

EST-Floattech has received DNV type approval for its Octopus LFP battery system, developed for electric and hybrid vessels including ferries, inland vessels and workboats that charge overnight and operate emissions-free during the day.

Nereida Energy has raised NKr32M (US$3.3M) from Norwegian investors, including Grieg, Eviny, Nysnø and Nye Aasen through a private placement of shares to develop a range of ESSs for service vessels, workboats, tugs, aquaculture boats and ferries. These will include battery modules that can be installed at different heights in a battery room, control system and software.

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