1. Photovoltaic panels: These are solar panels that can convert solar energy into electrical energy. They are the core of off grid photovoltaic power generation systems, responsible for collecting solar energy and converting it into direct current.

2. Inverter: The inverter converts the direct current generated by photovoltaic panels into alternating current, which is the form of electricity used in most electrical appliances and power grids.

3. Batteries: Off grid photovoltaic power generation systems require batteries to store electrical energy in order to provide electricity in case of insufficient sunlight. The type and capacity of the battery can be selected based on actual needs.

4. Energy storage battery charger: This is a device that transfers electrical energy from photovoltaic panels to energy storage batteries. It ensures that electrical energy is effectively stored and distributed

. 5. Power control system: The power control system is used to manage and monitor the entire system. It is responsible for regulating power output, protecting the system from damage caused by overcharging or discharging, and ensuring the stable operation of the system.

6. Structural support and casing: This includes the structural framework and casing used to support and protect internal components. These are usually customized designs to adapt to specific environments and installation requirements.

7. Wiring and control switches: These components are used to connect and control various components in the system. The control switch can control the system's on-off, switching, and other functions.