Few people know this, but most residential solar power systems automatically shut down during a power outage. Even with panels on your roof, you’ll still be without electricity during a blackout. This is one of the most common myths about solar energy.
Why do the panels shut down?
For safety reasons, conventional photovoltaic inverters shut down when the power grid fails. This prevents them from sending electricity to a grid that may be under repair by technicians. It’s a mandatory safety measure—but one that leaves users without power even when the sun is shining.
The solution: battery backup
Battery backup systems automatically detect a grid failure and isolate the home’s electrical circuit, distributing power from the batteries to essential equipment—all within seconds, transparently to the user.
With a proper backup system, you can continue to use:
- Refrigerator and freezer
- Essential lighting
- Medical equipment
- Router and communications
- Device charging
Huawei SmartGuard
LEFE recommends Huawei SmartGuard, a smart automatic switch that activates battery backup when the grid fails. Together with the SUN2000 hybrid inverter and LUNA2000 batteries, it creates a fully autonomous residential power system during grid outages.
How to size your backup system?
Proper sizing depends on:
- Which essential devices you want to keep running
- The expected duration of power outages in your area
- Available solar production during the backup period
The LEFE technical team will perform a free analysis of your needs and present the most suitable solution. Don’t wait for the next blackout to take action.
