The 12KW-14.3KWH system is suitable for medium and large power consumption scenarios. The 12KW power can support the simultaneous operation of multiple high-power devices, such as air conditioners, electric water heaters, commercial freezers, etc. The 14.3KWH capacity can meet the continuous power supply of 12-20 hours for families or 8-14 hours for small shops. It is suitable as an emergency power supply for villas to ensure basic power consumption for the whole house; it can also serve homestay clusters and community convenience stores to cope with business needs during power outages. With photovoltaic modules, it can realize off-grid power supply, which is suitable for farms, outdoor camps and other scenarios.