For stationary storage applications, acetone/IPA systems offer the advantage of a lower carbon footprint (Figure and Table ). Since stationary storage is not primarily limited by tank capacity, separation of the dilute acetone or IPA solution is not necessarily required, eliminating the need for a downstream separation unit. The carbon footprint of dilute acetone/IPA couple in water electrolyte and without distillation was 0.81 kgCO2/kg H2 cycled. (Figure ). Carbon footprint estimates assumed a constant LOHC feed while varying concentrations, meaning solution volume changes inversely with concentration. While Figure shows that the carbon footprint per unit of acetone solution rose with increased acetone concentration when no downstream distillation was applied, the footprint is in grams of CO2 per kg of solution cycled. The more concentrated solutions are more favorable operationally with minimal footprint impact. The carbon footprint of IPA ECD in water alone was zero, as no emissions resulted from the reaction itself (Figure ). However, with 1M KOH, the carbon footprint increased to 0.098kgCO2/kg IPA solution at 0.05M, owing to KOH carbon footprint (Figure ). Higher IPA concentrations (lower amount of IPA solution) decreased the footprint to 0.029kgCO2/kg IPA solution at 10M as less KOH was used (Figure ). Overall, LOHC cycling for stationary storage without separation yields a lower carbon footprint. Higher amount of solution is favors greater hydrogen storage capacity and less carbon footprint per unit. The tradeoffs between tank capacity, LOHCs concentration, and the electrolyte used should highly be considered when developing electrochemical cycling systems for stationary storage applications.