Corvus Moray Energy

The Corvus Moray Energy is a highly advanced battery system for demanding subsea environments. The customer has a unique possibility to customize the product for the required application.


Corvus Moray Energy is ideal for subsea applications where tailor made energy storage systems is needed and high energy density compared With low discharge rates are required. Subsea energy banks for long-term power supply with very low self discharge.


  • Low weight
  • Flexible, modular design
  • Ecapsulation in cylindrical units
  • Designed for pack voltages up to 900 VDC
  • Scalable up to 4 MWh  
  • Supports currents up to 50A max per pack
  • Low life cycle cost
  • High Safety
  • Reduces fuel, emissions, noise and maintenance
  • Industry-proven Battery Management System (BMS)
  • Remote monitoring
  • Very low self discharge and sleep mode option for long term energy storage

Orca safety innovations

Cell-level Thermal Runaway (TR) Isolation

  • True cell-level thermal runaway isolation – TR does not propagate to neighbouring cells
  • Isolation NOT dependant on active cooling

Exceeds Class and Flag standards TR Gas venting

  • Integrated thermal runaway gas exhaust system
  • Easily vented to external atmosphere rather than the battery room

Additional fire suppression system not required.

Technical Specifications

Performance Specifications
C-Rate - Peak1C
Operational Specifications
Pack Sizing32-1000/7,5-233kWh
Standard Pack example
VoltageMax: 192 VDC I Nominal: 173 VDC I Min: 144 VDC
Dimensions (Vertical)Height: 2400mm I Diameter: 360mm
General Specifications
Ingress ProtectionSystem: IP23
Vibration and ShockUN 38.3, DNV 2.4
Class ComplianceDNV-GL
Safety Specifications
Thermal Runaway anti-propagationCell-level; DNV-GL Pt.6 Ch.2, NMA 2016 circular
Fire suppression recomendedn.a.
Disconnect circuitCell individual fail-safe-for over-temp, over voltage
Maximum current parameterUpdated 2x per second
Faults communicatedOver-voltage, under-voltage, over-temperature, communication
Short Circuit protectionFuses included (3 levels)
Disconnect switchgear ratingFull load
Emergency stop circuitHard-wired
Ground fault detectionIntegrated

Market Segments

Cruise and Ferry

Ro-Pax, Car ferry, Cruise, Ferry, Yachts, Passenger

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DP2 vessels, DP3 Vessels, Oil and Gas, Offshore support vessels

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Fishing and Aquaculture

Fish farm support vessel, Fish farms, Fishing, Fish Farming and Aquaculture

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Tugs and Workboats

Tugs, Workboats

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Subsea Heave Compensation, ROV and Seabed

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Deep sea, Short sea

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