Design and Implementation of Grid Tied and Standalone Solar PV Systems

Abstract

A hybrid solar photovoltaic system can supply homes and all government and
private sector buildings with electricity in cities and remote places. Solar PV
systems generate emission-free electricity that is stable, safe, noise-free, easy to
use and does not require refuelling. It also reduces the use of fossil fuels in
power plants and reduces pollutants and greenhouse gas emissions that cause
climate damage, Therefore, the current research aims to design and implement a
hybrid photovoltaic solar system to provide one of the laboratories of the
Department of Physics at the college of education, Mustansiriya University,
with electrical energy during a year. The total electrical energy consumed by the
loads in the laboratory (devices, lighting lamps and fans) was measured by
about 2000 watts. The working hours of the laboratory were estimated at six
hours. In light of that, a photovoltaic solar system consisting of eight solar
panels with a capacity of 545 watts per panel was designed in standard
conditions and a total capacity of 4360 watts. After the design and installation,
the laboratory was operated at its total capacity and the power supplied by the
panels to the laboratory was recorded during the first daylight until after
midday. The results were encouraging, as it was found that the net power
processed by the system is about 3500 watts. Therefore, we can conclude that
the construction of solar systems is an economically feasible process under the
conditions of severe shortage in the supply of electrical energy and the high cost
of purchasing electrical energy from the private sector