Mohamed Sadeq, MSc Renewable Energy He has over 5 years of experience in academia, the private sector, organizational and regional experience in the solar energy field. He developed the first free bilingual (English/Arabic) Techno-economic pre-sizing tool for grid-connected PV systems in MENA Region, applied it in Egypt, and published at WILEY. He also developed a MATLAB code classified as a New Concepts in Solar and Thermal Radiation Conversion from SPIE, The International Society for Optical Engineering, USA. The Code is used as an offline tool for the Pre-sizing stage in grid-connected PV systems for technical users in Egypt.