For years, environmental conditions have been pushing the world towards an energy transition that sees changes at the root. Fully renewable electricity generation exploits unlimited resources, but also brings disadvantages, so it is important to develop technologies that can support them and make them more profitable and reliable. The following work analyzes the performance of a SOFC, high temperature electrochemical cell, and the associated BoP. This work focuses on performance based on fuel input, highlighting the main parameters and their dependencies. In detail, the study carried out starts from a Matlab model developed and validated with experimental curves, capable of simulating the work of this technology based on the input gas, without the need to carry out further experiments for each case; in this way through the code you already have a complete vision.