SOLAR 1.1 software: a case study of a chicken farm illumination project

The aim of this paper is to describe the use of SOLAR 1.1 software to design an illumination system for a chicken farm. This software version also helps carry out the economic analysis for grid-connected or stand-alone photovoltaic systems for choosing practical values of the investment rate and annuity factor and calculates the payback period of investment in the photovoltaic plant.