Nowadays, the reduction of greenhouse gas emissions to minimise the effects of climate change and the increase of energy independence from geopolitically unstable countries are highly relevant aspects. To achieve these targets, it is necessary to increment the use of Renewable Energy Sources (RES). However, intermittent energy production is a well-known drawback of some of these sources, such as wind and photovoltaic systems. Consequently, it becomes important to find more efficient and reliable storage systems. Hydrogen technologies can play a significant role in the future energy transition scenario. In this regard, the technology taken into consideration in this work is the reversible Solid Oxide Cells (rSOCs).