e.g., irradiance, temperature, wind speed, and air pressure) 
% data along with a basic PV system design and simulate the AC power output from a PV system.
%% Standard PV Modeling Steps
% Sandia National Laboratories has defined nine general modeling steps that are usually 
% involved in modeling a PV system’s performance.  These steps assume that the PV system 
% has been defined.  The steps are listed below:

%%
% # *Irradiance and Weather* – Collection of irradiance and weather measurements at standa