Corvus Blue Whale ESS
Marine energy storage systems for large vessels - Cruise, Ro-Pax and others
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Corvus Blue Whale ESS
The Corvus Orca ESS is the most installed marine battery energy storage system worldwide, operating in over 700 vessels and maritime applications around the world.
Key Features
Key Features
The Corvus Blue Whale marine energy storage system is designed specifically for large vessels, like Cruise Ships and Ro-Pax, and vessels that require a large amount of energy.
The Corvus Blue Whale marine battery energy storage system is designed for use in Cruise, Ro-Pax, Ro-Ro, Mega Yachts, and other vessels where the operational profile calls for low C-Rate, slow battery system charge and discharge rates, and emissions-free sailing over long periods of time. The product has recently been revised, giving increased energy capacity, higher volumetric energy density and better cycle life than its predecessors.
The Corvus Blue Whale marine energy storage system is designed specifically for large vessels, like Cruise Ships and Ro-Pax, and vessels that require a large amount of energy.
The Corvus Blue Whale marine battery energy storage system is designed for use in Cruise, Ro-Pax, Ro-Ro, Mega Yachts, and other vessels where the operational profile calls for low C-Rate, slow battery system charge and discharge rates, and emissions-free sailing over long periods of time. The product has recently been revised, giving increased energy capacity, higher volumetric energy density and better cycle life than its predecessors.
Industry leading volumetric and gravimetric room energy density
Unparalleled energy storage efficiency that maximizes capacity within limited maritime spaces.
Designed specifically for large vessels
Purpose-built technology scaled for the demanding requirements of major maritime operations.
Low C-rate for slow charge and discharge
Controlled energy flow that enhances longevity and reliability during extended voyages.
Industry leading volumetric and gravimetric room energy density
Unparalleled energy storage efficiency that maximizes capacity within limited maritime spaces.
Designed specifically for large vessels
Purpose-built technology scaled for the demanding requirements of major maritime operations.
Low C-rate for slow charge and discharge
Controlled energy flow that enhances longevity and reliability during extended voyages.
Main Specification
Main Specification
Technical Excellence in Every Detail
Battery Cell Chemistry
Lithium Iron Phosphate
Battery Cell Chemistry
Lithium Iron Phosphate
Energy
48.23 kWh
Energy
48.23 kWh
Capacity
628 Ah
Capacity
628 Ah
C-Rate RMS/ Peak
0.7C RMS / 1C for 20 minutes
C-Rate RMS/ Peak
0.7C RMS / 1C for 20 minutes
Dimensions
1165(l) x 905(w) x 238(h) mm
Dimensions
1165(l) x 905(w) x 238(h) mm
Weight
395 kg
Weight
395 kg
Maximum Voltage
80 VDC
Maximum Voltage
80 VDC
Ingress Protection
IP44
Ingress Protection
IP44
Cooling
Forced Air
Cooling
Forced Air
Applications
Applications
Versatile Power for Every Maritime Need
The Corvus Blue Whale ESS is ideal for marine applications that require a large amount of energy at a cost-effective kWh price. Typical vessel-types include:
Versatile Power for Every Maritime Need
The Corvus Blue Whale ESS is ideal for marine applications that require a large amount of energy at a cost-effective kWh price. Typical vessel-types include:
Cruise Ships
Cruise Ships
Ro-Ro / Ro-Pax
Ro-Ro / Ro-Pax
Yachts
Yachts
Merchant Vessels
Merchant Vessels
Workboats
Workboats
Inland Vessels
Inland Vessels
Sightseeing Vessels
Sightseeing Vessels
Functions
Functions
Extending the range of zero-emission operations for Cruise, Ro-Pax, and other large maritime vessels
Blue Whale was developed with large marine energy storage installations in mind, specifically battery systems that require more than 10MWh total system energy. Optimization for energy density enables Blue Whale to deliver more power. This in turn extends the vessel’s ability to maintain zero-emission operations, including during transit through emissions-restricted zones and zero-emission port stays.
Industry leading volumetric and gravimetric room energy density
Designed for voltages up to 1120 VDC
Low installation and commissioning time
Very cost-efficient for large installations
Enhanced reliability with contained power connections
Weight and volume reduced ~30% and ~50% compared to Corvus Orca ESS
Flexible and modularised design
Service aisles optional
Passive single-cell Thermal Runaway protection
Scalable capacity and voltage according to vessel requirements
Industry-proven Battery Management System (BMS)
Remote monitoring capabilities
Enhanced EMI immunity design for maritime environments
Advancing marine energy storage technology with the Corvus Blue Whale
The Corvus Orca ESS, the most installed marine energy storage system worldwide, set the industry standard for maritime energy storage reliability and safety. The Blue Whale design incorporates the unsurpassed safety features of the Orca, and additionally provides key advances required to meet the energy demands of large vessels. This includes improved energy density, with weight and volume reduced by ~30% and ~50 % compared to Orca. Learn more about Blue Whale via the video and product specifications below.
Extending the range of zero-emission operations for Cruise, Ro-Pax, and other large maritime vessels
Blue Whale was developed with large marine energy storage installations in mind, specifically battery systems that require more than 10MWh total system energy. Optimization for energy density enables Blue Whale to deliver more power. This in turn extends the vessel’s ability to maintain zero-emission operations, including during transit through emissions-restricted zones and zero-emission port stays.
Industry leading volumetric and gravimetric room energy density
Designed for voltages up to 1120 VDC
Low installation and commissioning time
Very cost-efficient for large installations
Enhanced reliability with contained power connections
Weight and volume reduced ~30% and ~50% compared to Corvus Orca ESS
Flexible and modularised design
Service aisles optional
Passive single-cell Thermal Runaway protection
Scalable capacity and voltage according to vessel requirements
Industry-proven Battery Management System (BMS)
Remote monitoring capabilities
Enhanced EMI immunity design for maritime environments
Advancing marine energy storage technology with the Corvus Blue Whale
The Corvus Orca ESS, the most installed marine energy storage system worldwide, set the industry standard for maritime energy storage reliability and safety. The Blue Whale design incorporates the unsurpassed safety features of the Orca, and additionally provides key advances required to meet the energy demands of large vessels. This includes improved energy density, with weight and volume reduced by ~30% and ~50 % compared to Orca. Learn more about Blue Whale via the video and product specifications below.
Specifications & datasheet
Specifications & datasheet
Technical Specifications
Performance Specifications
C-Rate - Continuous (Discharge / Charge)
0,7C / 0,7C
C-Rate - Continuous (Discharge / Charge)
0,7C / 0,7C
C-Rate - Peak (Discharge / Charge)
1C / 1C for 20 minutes
C-Rate - Peak (Discharge / Charge)
1C / 1C for 20 minutes
System Specifications
Battery Cell Chemistry
Lithium Iron Phosphate
Battery Cell Chemistry
Lithium Iron Phosphate
Single Module Size/Increments
48.23 kWh / 80 VDC
Single Module Size/Increments
48.23 kWh / 80 VDC
Single Module Capacity
628 Ah
Single Module Capacity
628 Ah
Single Pack Range
336-5472 kWh / 560 - 1120 VDC
Single Pack Range
336-5472 kWh / 560 - 1120 VDC
Module Dimensions
1165(l) x 905(w) x 238(h) mm
Module Dimensions
1165(l) x 905(w) x 238(h) mm
Module Weight
395 kg
Module Weight
395 kg
Module Volumetric Energy Density
192Wh/l
Module Volumetric Energy Density
192Wh/l
Module Specific Energy
122Wh/kg
Module Specific Energy
122Wh/kg
Safety Specifications
Thermal Runaway Anti-Propagation
Passive cell-level thermal runaway isolation with exhaust gas system
Thermal Runaway Anti-Propagation
Passive cell-level thermal runaway isolation with exhaust gas system
Fire Suppression
Per SOLAS, class and Corvus recommendation
Fire Suppression
Per SOLAS, class and Corvus recommendation
Disconnect Circuit
Hardware-based fail-safe for over-temperature and over-voltage
Disconnect Circuit
Hardware-based fail-safe for over-temperature and over-voltage
Short Circuit Protection
Fuses included on the module and string level
Short Circuit Protection
Fuses included on the module and string level
Emergency Stop Circuit
Hard-wired
Emergency Stop Circuit
Hard-wired
Ground Fault Detection
Integrated
Ground Fault Detection
Integrated
Disconnect Switchgear Rating
Full load
Disconnect Switchgear Rating
Full load
General Specifications
Class Compliance (Pending)
Lloyd's Register, Bureau Veritas, ABS
Class Compliance (Pending)
Lloyd's Register, Bureau Veritas, ABS
Type Approval (Target Q4. 2025)
DNV, Lloyd's Register
Type Approval (Target Q4. 2025)
DNV, Lloyd's Register
Ingress Protection
System: IP44
Ingress Protection
System: IP44
Cooling
Forced air
Cooling
Forced air
Safety
Safety
Corvus Energy Safety Innovations
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
Passive single-cell Thermal Runaway (TR) Isolation
• True cell-level thermal runaway isolation • TR does not propagate to neighboring cells • Isolation is 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
Passive single-cell Thermal Runaway (TR) Isolation
• True cell-level thermal runaway isolation • TR does not propagate to neighboring cells • Isolation is not dependent on active cooling
Expert Support at Every Stage
Our team of marine energy specialists is ready to help with system design, installation planning, commissioning, and ongoing maintenance.
Ready to Power Your Maritime Future?
Corvus Energy combines advanced battery technology with AI-powered monitoring to deliver the safest, most efficient energy storage solutions for the maritime industry. Our automated production facility in Bergen ensures unmatched quality and reliability across our entire product line.
Ready to Power Your Maritime Future?
Corvus Energy combines advanced battery technology with AI-powered monitoring to deliver the safest, most efficient energy storage solutions for the maritime industry. Our automated production facility in Bergen ensures unmatched quality and reliability across our entire product line.
Our products
Our products
Explore Our Complete Energy Storage Portfolio
The leader in zero-emission marine solutions, Corvus Energy products are designed for Life at Sea™ More than 50% of the world’s hybrid and all-electric maritime vessels are equipped with a Corvus Energy system.
Explore Our Complete Energy Storage Portfolio
The leader in zero-emission marine solutions, Corvus Energy products are designed for Life at Sea™ More than 50% of the world’s hybrid and all-electric maritime vessels are equipped with a Corvus Energy system.
