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A solar battery is a device that stores the excess electricity generated by your solar panels for later use.
It acts like a backup power source, allowing you to utilise the solar energy you've captured even when the sun isn't shining and the stored capacity is typically measured in KWh (Kilo Watt hour).
The solar panels on your roof convert sunlight into direct current (DC) electricity. This electricity can either be used immediately in your home (after being converted to alternating current by an inverter) or stored in the solar battery through a solar inverter.
Later, when your solar panels aren't producing enough electricity to meet your home's energy needs (such as at night or on cloudy days), the stored energy in the battery can be released and converted by the inverter to provide power to your home's electrical system.
The solar battery itself is typically a rechargeable lithium-ion, similar to the batteries found in electronic devices or electric vehicles. As the solar panels produce electricity during the day, any excess energy that isn't immediately used is sent to the battery to charge it up.
Solar batteries also serve as a backup power source during utility grid outages like load shedding in the event that the solar panels aren't producing power (bad weather / at night), allowing you to still have power by drawing from the stored solar energy.
With a solar battery, you can maximise your use of the renewable energy generated by your solar panels, increasing your energy independence and saving money on utility bills.
Jaco van Niekerk -Sable Energy
