Development of an integrated data-acquisition system for renewable energy sources systems monitoringDevelopment of an integrated data-acquisition system for renewable energy sources systems monitoring Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-11-082003enData-acquisition systems are widely used in renewable energy source (RES) applications in order to collect data regarding the installed system performance, for evaluation purposes. In this paper, the development of a computer-based system for RES systems monitoring is described. The proposed system consists of a set of sensors for measuring both meteorological (e.g. temperature, humidity etc.) and electrical parameters (photovoltaics voltage and current etc.). The collected data are first conditioned using precision electronic circuits and then interfaced to a PC using a data-acquisition card. The LABVIEW program is used to further process, display and store the collected data in the PC disk. The proposed architecture permits the rapid system development and has the advantage of flexibility in the case of changes, while it can be easily extended for controlling the RES system operation. http://creativecommons.org/licenses/by/4.0/Renewable Energy128139-152 Koutroulis Eftychios Κουτρουλης Ευτυχιος Kalaitzakis Kostas Καλαϊτζακης Κωστας Elsevier Alternate energy sources Alternative energy sources Energy sources, Renewable Renewable energy resources Sustainable energy sources renewable energy sources alternate energy sources alternative energy sources energy sources renewable renewable energy resources sustainable energy sources