Deye GB-W70.6 - 70.6kWh Modular high-voltage battery system

The Deye GB-W70.6 represents the maximum expansion stage of Deye's cabinet-based high-voltage storage systems. With an impressive total capacity of 70.6 kWh this pre-assembled unit provides an enormous energy reserve for the most demanding applications. The system is designed as an "all-in-one" solution, where highly efficient battery modules are combined in a robust cabinet system.

The high-voltage architecture (HV) achieves optimal system efficiency as the conversion losses between the photovoltaic system and storage are minimised. In combination with the powerful Deye hybrid inverters, the GB-W70.6 offers a future-proof solution for complete energy self-sufficiency in large residential and commercial buildings.

Highlights at a glance

• Maximum storage capacity: With 70.6 kWh capacity, the system is capable of supplying even energy-intensive businesses or large building complexes autonomously for long periods.
• Safest cell technology: Uses high-quality lithium iron phosphate cells (LiFePO4), which meet the highest fire safety standards and guarantee an extremely long lifespan.
• High system voltage: The serial interconnection of the modules ensures high operating voltage, which increases the overall system's efficiency under high loads.
• Centralised monitoring: The integrated battery management system (BMS) monitors each individual cell and communicates seamlessly with the inverter for maximum safety.
• Cabinet-based plug-and-play solution: The modules are pre-installed in the system cabinet, greatly reducing the on-site installation time and protecting the cabling.
• Superior cycle resistance: Designed for daily use over decades with a guaranteed performance of over 6000 charging cycles.
• Emergency power performance: Thanks to the high discharge capacity, even heavy loads such as heat pumps or machines can be safely operated in backup mode.

Areas of application

The GB-W70.6 is ideal for scenarios with the highest energy demand:

• Agricultural businesses
  • Storing solar power for milking systems, cold stores or drying units to drastically reduce operating costs.
• Commercial & industrial properties
  • Effective peak shaving (capping of load peaks) to reduce grid charges and optimise self-consumption.
• Neighbourhood storage & apartment buildings
  • Central storage solution to supply entire housing units as part of tenant electricity models.
• Critical infrastructure
  • Reliable buffering for data centres or medical facilities in regions with unstable electricity grids.

Installation & safety instructions

• Requirements for the installation site
  • The system is considerably heavy. The floor must be statically designed for the point load of the cabinet and absolutely level.
• Fire protection & ventilation
  • Although LiFePO4 cells are regarded as very safe, the installation room should comply with local fire protection regulations for large storage units and be well ventilated.
• Commissioning
  • Due to the high voltages, the electrical connection and configuration of the BMS may only be carried out by certified electricians.

Properties

FAQs about the Deye GB-W70.6 battery system

Is the capacity sufficient for commercial peak shaving?

• Yes, for many medium-sized companies.
  • With over 70 kWh, the system can effectively absorb peak loads by supplying energy at times of high demand, thereby reducing the expensive power provision of the grid operator.

Is the system compatible with the Deye Cloud?

• Yes, fully.
  • Through the Deye inverter's monitoring system you can track the state of charge, temperature, and health (SoH) of the battery anytime, anywhere, via app.

How is the system delivered?

• Usually pre-assembled.
  • The system is usually delivered as a complete unit, which minimises logistics effort and reduces error rates during assembly of individual modules.

Can I use the system for a pure off-grid installation?

• Absolutely.
  • In combination with the Deye hybrid inverters, the GB-W70.6 is ideal for stand-alone grids, as it provides a very high capacity for times of low sunlight.