Modular Storage Capacity from 5.94 to 89.07 kWh

One of the key strengths of the BYD Battery-Box HVB is its modular tower architecture, allowing the system to be sized according to the energy requirements of each installation.

Each battery module has a nominal capacity of 2.97 kWh. A single battery tower can accommodate between 2 and 10 modules, providing a maximum storage capacity of approximately 29.7 kWh.

For installations requiring greater energy storage capacity, up to three battery towers can be connected in parallel, achieving a maximum total capacity of 89.07 kWh.

This modular design enables tailored storage solutions for both new photovoltaic installations and the expansion of existing systems, in accordance with the configurations supported by the manufacturer.

Simplified Installation and Plug-and-Play Design

The BYD Battery-Box HVB features a stackable modular structure designed to simplify assembly and minimise electrical connections between battery modules.

The system incorporates integrated connectors, allowing battery towers to be assembled by stacking individual modules without the need for external inter-module cabling.

Its compact design facilitates installation in plant rooms, garages and other suitable locations, subject to the manufacturer’s installation requirements.

For installers, the plug-and-play architecture offers several advantages:

• Reduced cabling between battery modules.
• Simplified assembly procedures.
• Greater flexibility in system configuration.
• Modular construction that facilitates handling and installation.

These features help streamline installation procedures and the integration of battery storage into photovoltaic systems.

BYD Battery-Box HVB: Performance and Energy Efficiency

The BYD Battery-Box HVB uses a high-voltage architecture designed to optimise energy transfer between the battery storage system and the hybrid inverter.

The technology enables efficient management of charging and discharging cycles, with a declared round-trip efficiency of at least 95%, helping to maximise the utilisation of electricity generated by the photovoltaic system.

Thanks to its modular architecture and the ability to connect multiple battery towers in parallel, the system can be sized according to the energy requirements of the installation, providing flexibility for both new installations and future capacity expansions.

Actual system performance depends on the battery configuration and the specifications of the connected inverter.

Intelligent Battery Management and Monitoring

The BYD Battery-Box HVB series incorporates a Battery Management System (BMS) and an upper control unit designed to monitor key operating parameters and coordinate battery module management.

Key functions include:

• Monitoring of State of Charge (SOC) and operating parameters.
• Battery module management and control.
• Communication with compatible hybrid inverters.
• Diagnostic functions and software updates, depending on the system configuration.

The electronic management system helps optimise battery operation and supports system inspection, monitoring and maintenance activities.

Safety, IP55 Protection and Certifications

The BYD Battery-Box HVB is designed to meet the safety requirements applicable to electrochemical energy storage systems.

LFP technology contributes to cell thermal stability, while the system architecture incorporates integrated monitoring and protection devices.

The main standards and certifications declared for the series include:

• IEC 62619, covering safety requirements for lithium batteries used in industrial applications.
• UN 38.3, specifying the tests required for the transport of lithium batteries.
• VDE 2510-50, covering safety requirements for stationary energy storage systems.
• CE marking, in accordance with applicable European requirements.

The IP55 ingress protection rating provides protection against dust and water jets, offering greater flexibility when selecting an installation location.

The system is designed to operate under various environmental conditions, subject to the temperature limits and installation requirements specified in the manufacturer’s technical documentation.

Compatibility with Hybrid Inverters and Backup Applications

The BYD Battery-Box HVB is designed for integration with compatible hybrid inverters, enabling the management of electricity generated by the photovoltaic system and stored in the battery.

The main applications include:

• Optimisation of photovoltaic self-consumption.
• Storage of surplus electricity generated during peak solar irradiation hours.
• Supply of electrical loads during evening and night-time hours.
• Management of electricity consumption and peak power demand.
• Backup power supply during grid outages, where supported by the inverter and system configuration.

Compatibility must be verified against the official BYD inverter compatibility lists, taking into account the inverter model, firmware version and battery configuration.

BYD Battery-Box HVB: Flexible and Scalable Solar Battery Storage

Combining LFP chemistry, Blade Battery technology and a modular high-voltage architecture, the BYD Battery-Box HVB provides a flexible energy storage solution that can be sized according to the energy requirements of each installation.

With storage configurations ranging from 5.94 to 89.07 kWh, a plug-and-play modular design and intelligent battery management features, the system offers installers and system designers a versatile solution for residential photovoltaic applications with varying energy demands.

VP Solar supports photovoltaic professionals in selecting BYD battery storage solutions and identifying the most suitable configuration for each installation.