The SOE/ESR system can be used to regenerate 100% of a crew's oxygen with only metabolically produced H2O and CO2. The SOE/ESR system can also be used in various in situ resource utilization (ISRU) processes for O2 and CH4 propellant production, for example hydrogen reduction of lunar regolith, carbothermal reduction of lunar regolith, and Martian CO2 atmosphere and ground water electrolysis. In all applications, this SOE/ESR unit can be operated as a fuel cell to, for example, power nighttime operations when solar power is not available, and provide auxiliary power to devices in the vicinity. Smaller units can be operated as a dedicated fuel cell in rovers or habitats fueled by larger in situ O2 and CH4 production plans. The development of a SOE/ESR Internally Reforming SOFC system would allow its inclusion in several of the commercial and civil space vehicles under development. Also, it can be used in underwater research facilities, submarines, high altitude aircraft, or emergency bunkers. SOFC systems powered by easily storable hydrocarbon fuel could extend the window in which scientists perform remote field research in latitudes that don't provide sufficient sun light during winter months. The silent nature of SOFC power generation also lends itself to powering scientific equipment during wildlife observation or other sound sensitive operations. A SOE/ESR Internally Reforming SOFC could provide relief power during high energy-use periods of the day. During low energy-use periods, the system could make its own fuel in preparation for the next high energy-use period. Internally reforming hydrocarbon SOFCs present a means to generate electricity from natural gas or gasified coal. CO2 produced by terrestrial fuel cell installations is more easily captured than emissions from traditional hydrocarbon power generation equipment which presents carbon sequestration capabilities. The development of CH4 reforming catalysts can be used for the industrial scale generation of CO+H2 (syngas) which is a feedstock for the production of synthetic liquid fuel via the Fischer Tropsch process.