This presentation deals with industrial refrigeration compressor systems with a special focus on the inverter switch technology selection. Today inverter drives make usually use of well-known Silicon (Si) IGBT based inverters, but the recent development of Silicon Carbide (SiC) MOSFET devices is opening new scenarios in this field. SiC MOSFET devices offer very low on-resistance per unit area and very good switching performance. SiC MOSFET guarantees also negligible recovery energy during body diode turn off in comparison with traditional Silicon freewheeling diodes (FWD). Moreover, the outstanding thermal properties of the SiC material lead to higher power density applications. In this presentation a comparison in terms of power loss calculation is shown based on a 20 kW compressor for industrial refrigeration, either with IGBT or SiC MOSFET switches. According to inverter power loss calculation, a comparison is carried out showing cost savings that come from electricity yearly consumption by using SiC MOSFET instead of IGBT and heatsink size reduction.