Dataset with transmittance values in solar panel coverings for the components of anisotropic radiation, and power estimations for two locations, three panel inclinations, two sky models, and three sets of covering specifications

The paper proposes a new set of general models for estimating the transmittance in solar panel coverings of the anisotropic component of diffuse radiation, namely, Sky Isotropic, Circumsolar, Horizon Brightening, and Albedo. The Sky Isotropic radiation consists of rays coming (unbiased) from all directions of a virtual dome, the Circumsolar radiation as rays coming from a 25° half-angle spherical cone following the sun, the Horizon Brightening radiation as rays coming from either a flat ring or a 6.5° spherical segment (band) at the horizon, and ground-reflected Albedo as a downward extension of the Sky Isotropic dome.

The proposed models are in function of the Beam Incidence Angle (in [rad]), the panel Tilt Angle (in [rad]), the covering Thickness (L in [m]), the covering Refraction Index (n), and the covering Extinction Coefficient (K in [1/m]). Four files are related to these models. The rest of the files correspond to a case study related to the same paper, where detailed calculations are presented for half-hourly time steps throughout the whole 2018 year for two locations (Pittsburgh, United States, and Santa Marta, Colombia), three south-facing panel inclinations (0°, 90°, and counter-latitude), two sky models (HDKR, 1990, and Perez, 1990), and three sets of covering specifications (low range, Default, and high range).