This tutorial contains simulation files that can be used to model a photovoltaic (PV) panel. The tutorial contains a document which describes the factors that govern production of energy from a PV panel and the equations that need to be solved to generate the PV voltage and current. The tutorial describes how the simulation files can be used to generate the V-I characteristics of a PV panel from manufacturer specifications that match the characteristics provided in datasheets. The tutorial is available for free and can be downloaded from the link http://pythonpowerelectronics.com//tutorials/tutorial3/post.html. Feel free to follow my Facebook page https://www.facebook.com/pythonpowerelectronics for instant updates on the project.