The 20KWH floor-standing energy storage power supply is a large-capacity industrial and commercial grade energy storage device with ultra-large energy storage capacity and strong load capacity. It adopts industrial-grade LiFePO4 batteries with ultra-long cycle life and excellent safety and stability, suitable for long-term and high-frequency use. It supports dual charging modes of high-efficiency solar energy storage and intelligent municipal power complementation, automatically switching charging modes according to working conditions to minimize power consumption costs and meet peak-valley price arbitrage and clean energy self-use needs. With a modular floor-standing structure, it is sturdy, durable, heat-dissipating and highly protective, with convenient installation and maintenance. It is widely used in commercial scenarios such as small and medium-sized factories, supermarkets, office buildings and homestay clusters, and also serves as core equipment for full-house energy storage of large villas, off-grid power supply in remote areas and high-power outdoor emergency power supply for engineering projects.