We performed a simple economic analysis of this proposed thermo-electrochemical looping cycle for the generation of H 2 . This analysis factors in 1) the thermal energy cost, 2) the biomass/MSW feedstock cost, and 3) the electrical energy cost. Not included in this analysis are the costs of transportation and purification of feedstocks and products, facility construction and maintenance, carboncapture rebates or tax incentives, or costs of initial sulfur intermediates.