Prediction of Solar Radiation Intensity for Cost-Effective PV Sizing and Intelligent Energy Buildings

The solar radiation in the form of electromagnetic waves emitted by the sun, travels the extraterrestrial space without any essential interaction with matter, and reaches the earth’s atmosphere. Therein, the beam solar radiation undergoes physic-chemical processes and experiences scattering by (macro) molecules, dust, or other tiny particles in the air. This process creates the solar radiation component called diffuse radiation. Thus, the solar radiation on any surface on the earth consists of the beam solar radiation, the diffuse radiation and the one reflected by the surroundings.