The amount of battery storage you need for you home will be influenced by your home energy needs, the number of solar panels you currently (or plan to) have installed and the amount of excess electricity they currently produce, the size of your inverter (if you already have one installed), and if you have plans to purchase an electric vehicle or large appliance (such as a pool pump) in the future. A certified Redback installer will discuss your options for home battery storage, and suggest what is the optimum size for your home.