PVRESOURCES

The term photovoltaics derives from the Greek word phōs meaning light and the word volt, named by italian physicist Alessandro Volta (1745-1827). Photovoltaics is a science, which examines light-electricity conversion, respectively, photon energy-electric current conversion. In other words it stands for light-current conversion. First known use of word photovoltaic in the literature was in the book Elements of Electro-biology, Or the Voltaic Mechanism of Man of Electro-pathology, Especially of the Nervous System and of Electro-therapeutics written by Alfred Smee (1818-1877) in 1849. Smee was surgeon, but he also significantly contributed to progress of electro-metallurgy and electrical physiology... Units and measures used in solar energy engineering are, with some exceptions, used also in physics, mechanical engineering and some other branches of enginnering. Basically units and measures can be devided into three major groups: terms related to solar radiation, terms related to light..