1- Design your irrigation system ( depending on the type of plants you are growing).
2- Calculate the power needed to turn on the system’s valves ( Voltage and Current needed).
3- Calculate how many (PV Panels) you need to supply your system with the needed power.
4-Design your own controller system ( depending on how you need to serve your plants ).
5-Group the ( irrigation system + power system + Control system ) together, and it is done!