The spectrum is also characterized by the irradiance integral
across eight wavelength intervals. The percentage of total
irradiance is shown in Table II for the standard terrestrial
spectra of AM 1.5G (Global) and AM 1.5D (Direct) and the
extraterrestrial spectrum AM 0.
The goal of the project presented in this paper is to realize a
steady-state solar simulator with high spectral matching class.
In the following, the standard terrestrial spectra of AM 1.5G
will be considered, which is appropriate for testing of PV