In the past decade, there has been continuous growth of power generation from non-conventional energy sources. The most common are wind, micro hydro and solar sources. They are renewable, eco-friendly and significantly reduce the load on ever-depleting fossil fuels. Moreover, they are sustainable and require less maintenance. The major disadvantage of the non-conventional sources is that due to their natural variability, the produced power is fluctuating and therefore they are not regarded as reliable power sources for standalone uses.
To overcome this drawback they are generally hybridized with the conventional diesel power generating system for small-scale applications. The present work deals with optimal sizing of a hybrid energy system for a typical electric-heated home in St. John’s, NL. The system is sized to an optimal configuration by using HOMAR-optimization software and modeled in MATLAB Simulink environment. It appears that multi-port dc-dc converter is best suited for the designed hybrid energy system