● Auto-configuration via
SmartBMS and BCM (Battery
Control Module based on NetDI
technology)
● Redundant architecture for
continuous operation
● Modular expansion to 6 MWh
capacity
Built for a 25-year lifespan, the
ESS currently supports 2000m
deployments, with options for
3000m and 6000m depths. The
system has already been
successfully implemented in the
oil & gas sector, with an
immediate reorder confirming its
value and dependability.
FROM AUVS TO
INFRASTRUCTURE: FLEXIBLE
APPLICATIONS
SubCtech’s vehicle batteries and
subsea systems support a wide
array of defense and industrial
use cases:
● XXL-AUVs for surveillance,
mine detection, and deep-sea
intelligence (up to 12 modules at
100kWh each, totaling >1 MWh
at up to 1000V, in serial or parallel
configurations)
● AUVs with 416 mm, 310 mm or
260 mm battery modules
diameter for underwater
inspection or monitoring
● Docking-enabled AUVs and
ROVs, autonomously charging at
seabed stations without surface
recovery.
The ESS also provides buffering
for renewable energy sources like
wave, wind, and solar power, and
powers subsea compression,
injection, and monitoring
equipment—key to the offshore
energy transition.
ENGINEERING FOR EFFICIENCY
AND SUSTAINABILITY
By minimising the need for
vessel-based operations,
SubCtech’s systems dramatically
reduce both operational costs
and emissions. The ESS can
replace long umbilical
connections, reduce cable
infrastructure, especially long
tiebacks or CCS and extend
autonomous deployment
durations—all while maintaining
high safety and reliability
standards.
The redundancy concept ensures
uninterrupted supply to critical
subsea loads, and smart
telemetry systems enable
wireless underwater
communication via Acoustic
Telemetry Modems (ATM), with
ranges up to 6000m.
GLOBAL GROWTH, LOCAL
EXPERTISE
With 80 employees and tripling
production expansion in 2025,
SubCtech continues to scale
responsibly. Their UN-certified
battery systems are airfreight-
compatible and shipped globally,
supported by a professional
international sales network.
1 MWh Battery Storage Skid deployment
Battery Storage Skid
NEWS