COVER STORY
A variety of subsea energy solutions can be found in SubCtech’s popular product portfolio
SUSTAINABLE SUBSEA SOLUTIONS
Sören Johannsen discusses innovative and environmentally friendly technologies for the new underwater markets
S
ubCtech, an expert in underwater technologies, founded in 2010 by applied physicist Stefan Marx (CEO),
has grown into a maritime powerhouse based in Kiel, Northern Germany. This medium-sized enterprise, composed of a diverse team of skilled mechanical and electrical engineers and software specialists, is dedicated to next- generation R&D, custom project consulting, thorough prototype testing, and high-quality manufacturing according to international standards. The advantage for the fi rm’s
customers is a safe and reliable fi eld-tested technology that not only signifi cantly reduces CAPEX and OPEX costs, but also considerably reduces the CO2
vehicles (AUVs, SUVs) as well as remotely operated vehicles (ROVs). The company’s fl agship product line, PowerPacks, features advanced Li-Ion battery systems with confi gurations for basic, subsea, vehicle and custom battery needs, including advanced charging and battery-management systems (BMS). These modular and fl exible battery power blocks (SPBs), encased in a custom housing, are suitable for any required ocean depth and designed for a lifespan of up to 25 years.
footprint through less
downtime and service calls and longer downtimes. A win-win for industry, the blue economy and the environment. SubCtech’s Ocean Power products
are widely used for applications including off shore oil & gas companies; environmental monitoring stations; subsea applications; and manufacturers of autonomous underwater and surface
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BETTER BATTERIES One of the key factors in the company’s success with its subsea batteries is the excellent reliability and adherence to strict safety standards. The Li-Ion cells as well as the entire PowerPacks undergo rigorous testing to meet UN T38.3, MIL-STD, DNV, and API17F compliance standards, along with further customised requirements. These subsea batteries are specifi cally engineered for high-capacity, uninterruptible power supply (UPS) solutions for subsea energy production
facilities, capable of operating even in extreme conditions. “Our batteries undergo intensive testing for heat resistance, shock tolerance vibration and EMC to ensure they meet the stringent standards our clients expect from us and heavily rely on,” explains Stefan Marx. The batteries automatically protect
themselves from potential issues, safeguarding the system from damage and ensuring operational safety. They are equipped with features to disconnect in case of over- or under- voltage, over temperature, overcharge, overcurrent or short circuits with a high number of sensors and new KI-based algorithm to eliminate false alarms and detect critical states. Compared with traditional alkali primary batteries, Li-Ion PowerPacks provide robust high-current operation, functioning at sub-zero temperatures able to handle peak currents eff iciently and are suitable for long storage or operating times. These attributes make them a superior choice for demanding subsea and off shore applications.
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