SubCtech is proud to release the first subsea Energy Storage System (ESS) of its kind!

This underwater Li-Ion battery storage system (Battery Storage Skid – BSS) is currently the world’s largest and only Li-Ion battery for subsea applications.

The BSS consists of 12 x 100 kWh battery modules hulled in Super Duplex pressure housings, which provide 1 MWh e.g. for offshore Oil & Gas production.

This 22 ton battery is anchored in the subsea-bed with ships and ROV (robot) support and can be moved on the landside by forklifts or cranes.

The frame has been certified according to international standards by DNV as a “Portable Offshore Unit” (which includes design, manufacturing process, testing).

The system offers great backup opportunities for subsea applications!

Many thanks for the professional cooperation and the quick realization of the Super Duplex Skid: Stahlbau Schäfer