Stackable energy storage adopts split modular architecture. Battery modules are vertically stacked like building blocks, each equipped with independent BMS. Users start with fewer modules and add more later when power demand rises without replacing the whole system, lowering initial investment. Total capacity can expand from 10kWh up to dozens of kWh for villas and light‑commercial sites.

With safe long‑life LiFePO4 cells, stackable systems can work with separate inverters or all‑in‑one stack units. A flat ground base is required, taking up certain floor space. Featuring on‑demand configuration and individual module replacement, it represents one major trend for modern energy storage.