Solar battery backup storage is an innovative system that collects solar energy from your solar panels during the day that isn’t used in your home. This energy is stored in a battery that can be used to power your home at a time when energy from your solar panels isn’t available. This may be at night or during an emergency. Battery storage helps you take control of your energy usage all day long. Many people use battery energy to power their homes in the morning before the sun rises, and at night, after the sun has set, when the solar panels have charged it all day.