SolarFlow is a Plug&Play balcony energy storage system that turns sunlight into a safe, reliable source of energy to power our daily life. It is a user-friendly, sustainable and cost-effective solution for balcony solar power upgrades, storing excess power during daytime to be utilized at night to reduce carbon footprints. It also provides flexibility in customizing solar power setups. It is compatible with existing balcony solar panels and microinverters on the market. Its PV hub is equipped with an intelligent battery management system, storing excess energy in the associated LFP batteries.