You must check the wind power data where the wind-solar hybrid street lamp is located, unless the wind turbine is for show. But depending on your sunshine hours, it should be in the south. Generally, the wind along the coast is fine, but not inland.
The most cost-effective small fan is the 400W one. When running at full power for 5 hours, it is 2000W. , that is, 2 kilowatt hours of electricity, which means that if the rated wind speed of the wind turbine is met for 5 hours out of 24 hours a day, the power generation can meet the requirements of your street lights, so you must look at the wind power data. Simply put: if the wind turbine is used every year The starting wind speed is greater than 4000h, which can basically meet the requirements of street light source (after all, your battery is redundant and can last for 3-4 windless days), then your solar modules are spare, and they don’t need to be too large. 600W is enough. If wind energy is abundant, the components can be reduced.
The required capacity of the battery is: 24V/360ah, considering the battery model: 12V, 200ah, 4 pieces.