Backup Box
Energy security, even during grid outages
A reliable power supply is essential, especially for applications where continuity is key. With a backup box, a PV installation automatically switches to backup power when the grid fails. This solution is indispensable when combined with a home battery or commercial battery and is increasingly used in both residential and commercial environments.
How does a backup box work?
The backup box acts as an automatic switching unit. In the event of a power outage:
The installation is disconnected from the grid
It immediately switches to stored energy from the battery
The selected circuit(s) or entire installation continue to operate
Depending on the type of backup box and battery system, users can maintain access to lighting, Wi-Fi, medical equipment, or even ensure full business continuity during a grid failure.
Our range of backup boxes
At ESTG you'll find, among others:
Growatt Backup boxes: Automatic switchover for hybrid systems
Huawei Backup boxes: Smart switching solutions compatible with Huawei LUNA batteries
SolarEdge Backup boxes: Suitable for use with SolarEdge Energy Bank batteries
Combine for maximum reliability
A backup box performs best when combined with:
Hybrid inverters with backup functionality
Home management systems for automated control of critical loads
Why choose backup boxes from ESTG?
Directly available from stock
Technical support for compatibility and system design
Perfectly matched to our battery systems
Ready for backup power solutions?
Ensure PV installations keep running even when the grid fails. View our full range of backup boxes or contact us for expert advice.