Solid Oxide Fuel Cells (SOFCs) are an electrochemical device that converts hydrogen and carbon monoxide from hydrocarbon fuels, like natural gas or propane, into electricity. The process is driven by the flow of oxygen ions from a cathode to an anode through an electrolyte that is comprised of solid zirconia. When these ions combine with hydrogen and carbon monoxide from the fuel, electrons are released to an external circuit. This process is replicated many times in the fuel cell, in arrays or stacks, and it results in highly efficient power generation with virtually no greenhouse gas emissions.