Deye GB-W105.9 - 105.9kWh Modular high-voltage battery system

The Deye GB-W105.9 is the ultimate powerhouse for large-scale energy storage projects. With an impressive total capacity of 105.9 kWh, this cabinet-based high-voltage (HV) system represents the highest expansion stage of the GB-W series. It was specially developed to safely and efficiently meet the energy needs of industrial enterprises, large agricultural complexes, and independent residential quarters.

The system impresses with its modular architecture within a robust cabinet system which offers maximum energy density on minimum floor area. In combination with the powerful Deye hybrid inverters, it enables almost complete independence from the public grid and highly effective capping of peak loads.

Highlights at a glance

• Maximum storage capacity: 105.9 kWh offers enormous reserves for the most demanding applications and multi-day bridging periods.
• Safe LiFePO4 technology: Uses thermally stable lithium iron phosphate cells for maximum safety and outstanding service life.
• High-voltage efficiency: The high operating voltage minimises conversion losses and optimises the overall efficiency of the PV system.
• Intelligent Master BMS: A central battery management system permanently monitors all cell parameters and ensures perfect balancing across all modules.
• Robust all-in-one solution: The battery modules are securely accommodated in an industrial cabinet system, significantly reducing installation effort on site.
• Enormous load capacity: Designed for high discharge currents to stably operate even heavy industrial machines or extensive backup systems.
• Comprehensive monitoring: Fully integrated into the Deye Cloud for real-time monitoring, detailed statistics, and remote maintenance options.

Areas of Application

The GB-W105.9 system is the first choice for projects in the megawatt-hour range or self-sufficient large-scale objects:

• Industrial & manufacturing businesses
  • Drastic reduction in electricity costs through self-consumption optimisation and professional peak shaving to avoid expensive power rates.
• Large agricultural operations
  • Buffering massive PV yields to supply drying facilities, cold storage, or automated barns around the clock.
• District solutions & microgrids
  • Central storage unit for residential settlements or hotels aiming for sustainable and independent energy supply.
• Charging infrastructure for fleets
  • Buffering for rapid charging stations for electric trucks or bus fleets to avoid grid overloads.

Installation & Safety Instructions

• Static requirements
  • Due to the massive weight of the 105.9 kWh unit, the site must have a reinforced, perfectly level concrete foundation.
• Fire protection & environment
  • Installation should be carried out in a dedicated technical room that complies with local fire protection regulations for large battery storage facilities and allows active ventilation.
• Specialist personnel
  • Installation and commissioning of the high-voltage components may only be carried out by specially trained and certified personnel.

Properties

FAQs about the Deye GB-W105.9 battery system

Can the system be connected in parallel with other storage systems?

• Yes, via the Deye system management.
  • Multiple of these cabinet systems can often be operated in parallel to achieve capacities in the range of several hundred kilowatt-hours or even megawatt-hours.

How long does the battery last under maximum load?

• Depending on the discharge rate.
  • Thanks to the high capacity, the system can supply electricity for over two hours even at a constant load of 50 kW, which is more than enough for most industrial bridging scenarios.

Is remote maintenance possible?

• Yes, without limitation.
  • Authorised technicians can check the status of the BMS and upload software updates via the Deye web portal or app, without having to be on site.

How is the safety of the cells monitored?

• Through multi-level sensors.
  • Each module features its own sensors for temperature, voltage, and current flow. The master BMS can galvanically disconnect the system from the grid within milliseconds in case of irregularities.