1. Determine the power generation capacity of the solar street light system based on the specific conditions of the solar energy resources in the area and the power consumption of the day and night.
2. Determine the battery capacity based on the power consumption of the load for one day and night and the maximum number of consecutive rainy days to maintain the power supply.
3. Reasonably select the charge and discharge controller and inverter, and properly enlarge the capacity to improve the reliability and scalability of the system.
4. The power generation system can be purchased reliably and operated at the same time.