Solis inverter is one of the very few inverters that entered the Australian solar market in its first phase when the solar system’s demand was on the peak. The name “Solis” was come by the Latin word “sol solis” which refers to a “SUN.” The Solis inverter has made its existence amid many other prominent inverters with its experienced and skilled engineers. This Solis inverter review will illustrate its long journey of 20 years in the field of research and development in the technical category, which has achieved the success of being one of the best solar systems available in Australia.