SOME PROBLEMS CONCERNING SOLAR CELL ARRAYS IN THE DESIGN OF SOLAR-ELECTRICAL SYSTEMS.

Usually solar cell arrays can be installed either horizontally or tilted at a permanent worst-case angle. Another possibility is installation at a certain angle corrected on a monthly or other periodical basis. Another important factor in determining the power output of the array, is the environmental conditions in the location of the installed array. In this paper the above mentioned problems are discussed, and theoretical and experimental results obtained in Israel during some years of operation are presented. The theoretical and experimental results point out some guidelines for optimum operational conditions of solar cell arrays.