The growing demand for electrical power and the interruption of power supply has paved the way for realization of renewable based energy generation. Smart grid comes into picture which uses DG's there by managing the power demand and also reducing the environmental emissions. This paper mainly deals with the modelling of Distributed Generators such as solar cell, PEM (Proton Exchange Membrane) fuel cell and battery in steady state with power electronic interfaces and power flow management among these energy sources with or without grid. In this paper, the excess power is used to produce hydrogen to supply as input for fuel cell. The performance and results were reviewed in this paper with simulation results. © 2014 IEEE.