WEstack
Fast to install. Built to pay back. Modular energy storage designed for inland vessels.
Reliable onboard power for inland vessels
WEstack is a modular marine battery system that provides reliable onboard electrical power for inland vessels. Designed for demanding maritime environments, it stores and supplies energy safely and efficiently.
Its compact, scalable design allows easy integration into a wide range of vessels. The system reduces generator runtime while improving comfort on board — with a predictable payback time of approximately 3 years.
Years to payback
Based on typical vessel operating profiles, driven primarily by optimising generator use and reducing overall fuel consumption.
Built for the demands of inland shipping
Every aspect of WEstack is designed to perform reliably in maritime conditions, with minimal disruption to operations.
Fast installation
Designed for fast and straightforward installation on deck. The system can typically be installed and commissioned within one day, minimising downtime.
Modularity
The modular design allows the battery bank to be expanded as energy requirements evolve. Additional units can be added later without major modifications.
Safety
Combines passive and active safety features. Integrated fire suppression provides passive protection, while multi-sensor monitoring continuously manages the system.
Status LED strip
360° light indication provides real-time visual feedback on system status and battery level. Active ventilation ensures stable performance and long-term reliability.
What WEstack does for your vessel
Reduced generator runtime
Enables extended periods of silent operation for improved onboard comfort and lower generator maintenance costs.
Lower fuel consumption
Optimises generator use, reducing overall fuel usage across a wide range of operating conditions.
CO₂ emission reduction
Directly lowers emissions by reducing engine hours during normal vessel operations.
No shore power needed
With WEstack onboard, shore power is no longer required during port stays.
Configuration options
Available in five configurations from 96 kWh to 480 kWh. Width scales with capacity; depth and height remain constant.
| Parameter | Unit | 96 kWh | 192 kWh | 288 kWh | 384 kWh | 480 kWh |
|---|---|---|---|---|---|---|
| Total energy capacity | kWh | 96 | 192 | 288 | 384 | 480 |
| Rated output apparent power | kVA | 48 | 96 | 144 | 192 | 240 |
| Max. output apparent power | kVA | 60 | 120 | 180 | 240 | 300 |
| Max. input current @ 380 V | A | 73 | 146 | 219 | 292 | 365 |
| Max. output current @ 380 V | A | 91 | 182 | 273 | 365 | 456 |
| Total weight | kg | 1,224 | 2,448 | 3,672 | 4,896 | 6,120 |
| Total width | mm | 980 | 1,960 | 2,940 | 3,920 | 4,900 |
Depth: 1,116 mm · Height: 1,400 mm (all configurations)
Battery
Inverter / charger
Safety & protection
Battery operating time without generator
| Load | 96 kWh | 192 kWh | 288 kWh | 384 kWh | 480 kWh |
|---|---|---|---|---|---|
| 2 kW | 34 h | 67 h | 101 h | 134 h | 168 h |
| 5 kW | 13 h | 27 h | 40 h | 54 h | 67 h |
| 10 kW | 7 h | 13 h | 20 h | 27 h | 34 h |
| 15 kW | 4 h | 9 h | 13 h | 18 h | 22 h |
Values are indicative.
Let’s find the right solution for your fleet.
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