In a sunny suburban town, Mr. Zhang and his family decided to install a home solar photovoltaic panel and energy storage battery system to reduce electricity bills and improve the self-sufficiency of home energy use. The system consists of a group of high-efficiency photovoltaic panels, an energy storage battery group, an intelligent energy management system and the necessary inverter.

Problem Analysis:

1. Energy demand matching : Mr. Zhang’s family consumes a lot of electricity on a daily basis, especially during the peak period of air conditioning use in summer. It is necessary to ensure that the energy storage system can meet the family’s electricity needs.

2. System cost and return on investment : The initial investment is high, and it is necessary to evaluate the system cost, maintenance costs, and expected electricity savings to calculate the payback period.

3. System reliability and safety : Home energy storage systems must have a high degree of reliability and safety to ensure stable power supply in emergency situations.

Solution:

· Customized system design : Based on household electricity consumption habits and local sunshine conditions, a system consisting of 10kW photovoltaic panels and 20kWh energy storage batteries was designed to ensure that household electricity needs can be fully covered on days with sufficient sunlight, and excess electricity can be stored for use at night.

· Smart energy management : Smart meters and energy management systems are installed to monitor household electricity consumption and energy storage battery status in real time, automatically adjust electricity usage strategies, and optimize energy efficiency.

· Safety certification and insurance : We selected photovoltaic panels and energy storage batteries certified by national authoritative organizations, and purchased corresponding product liability insurance and property insurance to ensure the safety of system operation.