Z-Source Inverter for Power Conditioning and Utility Interface of Renewable Energy Sources:This paper summarizes the Z-Source inverter technology for power conditioning and utility interface of renewable energy sources based power generation (PV, Fuel Cell, and Wind power generation). A comparison between the traditional and new inverter system configurations is presented. Simulation and experimentation results are shown to verify the features of the Z-source inverter systems for renewable energy sources. Keywords: Z-source inverter, power conditioning system, utility interface, renewable energy, Photovoltaic, Fuel cell, wind power