Corvus Dolphin Power

Corvus Dolphin is a lithium-ion Energy Storage System designed and built for the maritime industry and is tailor made for vessels where weight-sensitive components are essential to the operation.


Corvus Dolphin Power is tailored for systems where light weight is essential but where high charge or discharge power is also required. The Energy Storage Solution is ideal for high-speed vessels that need to boost propulsion to reach max speed, or vessels that must recharge the batteries quickly and often.


  • Low weight
  • Flexible, modular design
  • Easy to install
  • Designed for pack voltages up to 900 VDC
  • Scalable from <20 kWh to >2 MWh  
  • Supports currents up to 300A max per pack
  • Low life cycle cost
  • Easy and safe installation – plug and play connections with no risk of electrical shock for personnel
  • Reduces fuel, emissions, noise and maintenance
  • Industry-proven Battery Management System (BMS)
  • Remote monitoring

Corvus Energy safety innovations

Passive-Single-Cell-level Thermal Runaway (TR) Isolation

  • True cell-level thermal runaway isolation
  • TR does not propagate to neighbouring cells
  • Isolation NOT dependent 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 - Peak6C
C-Rate - Continous3C
Operational Specifications
Pack Sizing130-1000V/7,8-54kWh
Standard Pack example (6 modules)
VoltageMax: 770 VDC I Min: 575 VDC
CoolingForced Air
Dimensions (Vertical)Height: 2110mm I Width: 580mm I Depth: 350mm
Dimensions (Horizontal)Height: 580mm I Width: 2110mm I Depth: 350mm
Weight375kg (827lb)
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 recomendedInert gas
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 carrier, 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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