How does a solar panel system with battery work during a power outage?

When the grid goes down, regular solar panel systems without a battery cannot supply power to your home – this is an important safety measure to protect installers and the grid. However, with a solar panel system with a battery and a hybrid inverter, you can get power supply even during a power outage, if the system is installed correctly.

How does it work technically?

Hybrid inverter: It controls both the production from the solar panels and the power from the battery. When the grid fails, the inverter switches to “island mode” and isolates your house from the grid. The battery is activated: The battery supplies power to the connected circuits in the home, typically the most necessary ones like lights, refrigerator, and charging devices. Power from solar panels: If the sun is shining during the power outage, the solar panels can also supply the house and charge the battery, increasing independence.

How long can the battery last?

It depends on the battery's capacity (often 10 kWh for regular private systems) and your electricity consumption. With a 10 kWh battery, you can typically have power for several hours up to a day with moderate consumption. For longer duration, additional battery capacity can be installed.

Benefits of power during a power outage

Peace of mind and comfort: You can continue to use essential appliances during a power outage. Economic value: Less need for a backup generator or emergency solutions. Green energy independence: You reduce your dependence on the grid and fossil fuel generators.

At EcoRay

We ensure that your solar panel system with battery and hybrid inverter is installed correctly, so you get optimal power supply during both normal and emergency situations. We adapt the solution to your household needs and ensure you have peace of mind year-round.