Preparing proposal in line with the information provided by the sales teams for residantial, industrial plant, station, etc. in solar energy projects. Preparing feasibility reports for solar energy project as a part of proposal work, preparing decisive summary to provide brief information to the customers, designing solar panel layout and detailed design engineering, designation of location of inverters and solar panel in accordance with the information obtained by design works, performing and planning array calculations, completing energy modelling with PVsyst program to design a correct system, following works of teammates, controlling and preparing the reports.