JPS_V4_N1_RevP1 Vikash Kumar Rai Krishna Pratap Singh Journal on Power Systems Engineering 2322–0376 4 1 32 37 Photovoltaic Systems (PV), DC to DC Converter, DC to AC Converter, Flyback Inverter, PWM Inverter In recent years, non conventional energy resources (solar energy, wind energy, tidal energy) has been the most effective utilization of generating electrical energy, and also widely used in transmission and distribution systems. In this paper, a study of two different photovoltaic systems, namely photovoltaic system using a single-stage converter and photovoltaic system using a two-stage converter has been analyzed. In a two-stage converter, the first stage has a DC-DC converter, which provides galvanic isolation and also changes the DC voltage level. The second stage has an inverter, which converts DC to AC and provides good quality current to the grid. In the single stage converter, flyback inverter is employed. This paper concludes with a discussion of the more efficient and reliable photovoltaic system between single and two stage systems. February – April 2016 Copyright © 2016 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=5970