Based on your question you are looking for the hourly global total irradiance (GTI) on an optimally tilted panel for the month of May. The current version of POWER data provides only the monthly mean GTI.
If you want to know the hourly GTI on the optimally tilted panel for any given month, you need to apply the isotropic model on an hourly basis and input hourly DNI, DHI and surface albedo, in addition to the solar zenith angle and azimuth angle and panel tilt angle and azimuth angle.
If you want to know the hourly GTI on the optimally tilted panel for any given month, you need to apply the isotropic model on an hourly basis and input hourly DNI, DHI and surface albedo, in addition to the solar zenith angle and azimuth angle and panel tilt angle and azimuth angle.
Statistics: Posted by ASDC - bmacpher — Wed Apr 17, 2024 4:15 pm America/New_York