Solar battery storage saves excess electricity generated by your panels during the day so it can be used at night or during a power outage, depending on the system. A battery can reduce the amount of electricity you buy from the grid, but its value depends on your energy use, electricity tariffs, solar system size and the battery’s upfront cost. Battery capacity, usable storage, warranties and backup features vary between products, so compare options carefully. A Clean Energy Council-accredited installer can assess your home, while current incentives should be checked through the official energy.gov.au website.