Corvus Moray Energy

The 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.

This Energy Storage System is ideal for subsea energy banks for long-term power supply with very low self-discharge rated actuators.


Corvus Moray Energy is ideal for subsea applications where tailor-made energy storage systems are needed and high energy density combined with low discharge rates are required.

  • Low C-rate for slow charge and discharge
  • Low weight
  • Designed for voltages up to 900 VDC
  • Easy and safe plug and play connections
  • Low life cycle cost
  • Very low self-discharge for long term energy storage operations
  • Very flexible and modularized design
  • Passive single-cell Thermal Runaway protection
  • Scalable capacity and voltage according to requirements
  • Industry-proven Battery Management System (BMS)
  • Remote monitoring capabilities
  • Enhanced EMI immunity design for maritime environments

Technical Specifications

Performance Specifications
C-Rate - Peak (Discharge / Charge)0,77C / 0,77C for 10 seconds
C-Rate - Continuous (Discharge / Charge)0,2C / 0,2C
System Specifications
Single Module Size / Increments1,85 kWh / 8,0 VDC
Single Pack Range7,5-233 kWh / 32-900 VDC
Max Gravimetric Density - Pack200 Wh/kg | 5 kg/kWh
Max Volumetric Density - Pack190 Wh/l
Example Pack - 24 Modules
Energy45 kWh
VoltageMax: 192 VDC | Nom: 173 VDC | Min: 144 VDC
DimensionsHeight: 2400 mm | Diameter: 360 mm | 230 kg
Safety Specifications
Thermal Runaway Anti-PropagationPassive cell-level thermal runaway isolation
Fire SuppressionNot applicable
Disconnect CircuitCell individual fail-safe for over-temperature and over-voltage
Short Circuit ProtectionFuses included on cell, module and pack level
Emergency Stop CircuitHard-wired
Ground Fault DetectionIntegrated
Disconnect Switchgear RatingFull load
General Specifications
Class ComplianceDNV GL, Lloyds Register, Bureau Veritas, ABS, RINA
Type ApprovalNot applicable
Ingress ProtectionSystem: IP23
Vibration and ShockUNT38.3, DNV 2.4
EMCIEC 60945-9

Market Segments

Cruise and Ferry

Electric and Hybrid RoPax, Electric and Hybrid Car Ferries, Hybrid Powered Cruise Ships, Electric and Hybrid Ferries, Electric and Hybrid Yachts, Electric and Hybrid Passenger Ferries

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Corvus is the leading provider of marine battery energy storage systems for maritime applications, including electric and hybrid tugboats and workboats.

Tugs and Workboats

Electric and Hybrid Tugboats, Electric and Hybrid Workboats

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Offshore Wind

Non Vessel Wind Installations, Offshore Wind Installation Vessels, Offshore Wind Service Vessels

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Offshore Oil & Gas

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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merchant vessel


Deep sea vessels, Hybrid short sea merchant vessels

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Corvus Energy is the leading provider of marine energy storage systems, including solutions for hybrid port equipment and electric vessel charging.


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Subsea Heave Compensation, ROV and Seabed

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