A stackable power wall is a compact, wall-mounted energy storage device designed for residential and small commercial use which batteries can be added to over time its capacity can be increased by stacking additional units. Capable of storing energy derived from solar panels or the grid, they power wall stores utilize lithium-ion batteries offering high energy density, fast charging, and reliable power output. Their modular design enables easy installation and scalability, while their wall-mounted form factor saves value floor space.