DefinePK

Abstract

Researchers around the world are now working to develop renewable energy sources to use instead of traditional fossil fuels to avoid global warming. Photovoltaic technology is one of the main renewable energy source in the world. In spite of fast developing, the energy amount generated by photovoltaic systems still small comparing to world need. In this work, for the purpose of addressing the acute shortage in the supply of electricity in Iraq as well as to reduce greenhouse emissions by increasing the proportion of renewable energy from the total energy mix, a grid-connected 3 KW photovoltaic system are built to install on the roofs of houses and residential units at Najaf City-Iraq as the proposed location. PVsyst simulation software from PVSYST SA have been used to design and simulate photovoltaic system. Module orientation, system components, and other design parameters are evaluated. The various losses such as temperature losses, module quality losses, wiring resistance losses, are determined in addition to calculating performance ratio.