Corvus Moray Power

The Corvus Moray Power 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 Power is ideal for subsea applications where tailor made energy storage systems is needed and regeneration of energy into the battery is expected. Ideal for active heave compensation, buffer stations or high power rated actuators.


  • Low weight
  • Flexible, modular design
  • Ecapsulation in cylindrical units
  • Designed for pack voltages up to 900 VDC
  • Scalable up to 2 MWh  
  • Supports currents up to 200A max per pack
  • Low life cycle cost
  • High Safety
  • Reduces fuel, emissions, noise and maintenance
  • Industry-proven Battery Management System (BMS)
  • Remote monitoring

Reference project:

Safelink AS – ESS for inline heave compensation

Safelink delivers equipment that enables heave compensation when lowering equipment down on the seabed without having a heave compensated crane. Corvus Energy has delivered Moray Power ESS for the equipment shown in the youtube video below

Corvus Energy 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 - Peak2C
Operational Specifications
Pack Sizing32-1000/5,3-165kWh
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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