Operating Principles, Performance and Technology Readiness Level of Reversible Solid Oxide Cells

The continuous increase of energy demand with the subsequent huge fossil fuel consumption is provoking dramatic environmental consequences. main challenge this century to develop and promote alternative, more eco-friendly production routes. In framework, Solid Oxide Cells (SOCs) are a quite attractive technology which could satisfy users’ request working in reversible operation. Two operating modes alternated: from “Gas Power”, when SOCs work as cells fed hydrogen-rich mixture provide both electricity heat, “Power Gas”, electrolysers supplied produce hydrogen. If solid oxide an already mature several stationary mobile applications, use electrolyser even still under investigation due their insufficient lifetime. Aiming at providing better understanding new technological approach, study presents detailed description cell operation terms electrochemical behaviour possible degradation, highlighting most commonly used performance indicators. A thermodynamic analysis system efficiency proposed, followed by comparison other available devices order underline specific advantages limitations.