The core functions of a household energy storage system are "energy storage" and "energy discharge".

 When there is abundant and low-cost electricity, such as during the day when solar power generation is high, the system will store the excess electricity;

 while when the sun sets, the electricity price rises, or there is a sudden power outage, the system will release the stored electricity for household use. 

It is like a "power bank", storing money (electricity) during the day and withdrawing it (electricity) at night. 

Home energy storage systems are often used in conjunction with solar photovoltaic systems to create a "solar power + energy storage" system. Solar panels convert sunlight into electricity during the day, which is used directly by the household. The remaining electricity is stored in the home energy storage system. At night or on cloudy days, when solar power is unavailable, the energy storage system can release the electricity stored during the day.

 Installing a home energy storage system generally requires the following basic conditions: 

There is a stable demand for electricity (especially during peak hours when the electricity price is high or when the electricity consumption is large); 

It is best to be combined with a photovoltaic system, which offers a higher cost-effectiveness. 

There is sufficient space for installation (such as on the balcony, in the garage, or in the storage room); 

Families with stable living conditions and long-term plans are more suitable for investing in projects with a return-on-investment cycle.