Deye BOS-A – 99.84 kWh high-voltage battery storage for commercial and industrial use

The Deye BOS-A System in the 99.84 kWh configuration is a high-performance, modular high-voltage storage solution developed specifically for the needs of commercial enterprises, industrial plants and large PV projects. Based on the robust BOS-A battery module (7.68 kWh per unit), this system provides a strong energy reserve for emergency power supply and for optimising self-consumption from renewable energies.

By using safe lithium iron phosphate technology (LiFePO4) and an intelligent, cloud-based management system, the storage guarantees maximum reliability and efficiency. The system is optimised for installation in rack environments and enables fast assembly and straightforward maintenance in professional settings.

Highlights at a glance

• High capacity: With 99.84 kWh (realised by 13 modules in series), the system provides strong reserves for commercial applications, emergency power solutions and peak shaving.
• Safe LiFePO4 chemistry: The cobalt-free cell chemistry provides maximum thermal stability and an extremely long service life of over 6000 cycles.
• Intelligent cloud management: Real-time monitoring of energy consumption and battery status via the Deye Cloud platform for optimising operating costs.
• High-voltage efficiency: The series connection of the modules provides high system voltage, which minimises conversion losses and increases efficiency to over 90%.
• Effortless installation: The embedded design and a module weight of approx. 70 kg enable structured installation in standard rack systems.
• Robust industrial design: High IP protection rating and resistance to various environmental conditions for long-term use in technical rooms.
• Comprehensive warranty: 10-year manufacturer warranty and a full replacement guarantee for up to 6000 charge cycles provide long-term investment security.

Areas of application

The 99.84 kWh variant of the BOS-A is the ideal solution for demanding projects in commercial and industrial environments:

• Industrial & commercial operations
  • Ensuring uninterruptible power supply (UPS) for critical machines and reducing costly peak loads.
• Large photovoltaic systems
  • Efficient intermediate storage of solar energy to maximise the degree of self-sufficiency in office buildings, agricultural operations or production sites.
• Neighbourhood storage
  • Central storage solution for housing developments or municipal energy projects for communal use of solar power.

Installation & Safety Instructions

• Rack configuration
  • The system achieves its capacity by connecting 13 battery modules in series per rack. Ensure proper mechanical fixing in the control cabinet.
• Safety management
  • The integrated Smart-BMS protects each module individually from overcharging, deep discharge and short circuit. Communication takes place seamlessly via CAN 2.0.
• Statics & weight
  • A fully equipped 99.84 kWh rack weighs approx. 900–1000 kg. Make sure that the foundation at the installation site is designed for these loads.

Features

FAQs on the Deye BOS-A 99.84 kWh storage system

Can the 99.84 kWh system be further expanded?

Yes. Multiple racks can be connected in parallel to realise significantly larger total capacities for commercial or industrial applications. The modular design enables the system to be adapted precisely to growing energy requirements.

How does the emergency power supply work at this capacity?

Automatically and with high performance. In combination with a suitable Deye high-voltage inverter, the system can switch to battery mode within milliseconds in the event of a power failure and reliably continue to supply critical loads.

Why is the BMS so important in this system?

For balance and safety. In a series connection of 13 modules, the BMS ensures all cells are charged and discharged evenly. This prevents individual modules from ageing prematurely and maximises the usable energy of the entire storage block.

Is the system maintenance-intensive?

No. Thanks to the fanless design of the battery modules and the robust LiFePO4 technology, the system is almost maintenance-free. Remote monitoring via cloud also allows irregularities to be detected at an early stage before they become a problem.