As electricity production was a relevant hotspot for both baseline scenarios (Ni and Palladium catalytic systems), we carried a future scenario assessment for both methods, in which the Swedish electricity production grid mix was changed to a proposed reasonable future electricity grid mix for the year 2030. The modelled future scenario showed a decrease in the overall environmental impact for both methods (see Supporting information, Section S4.2.2). This results from an estimated higher share of renewable electricity, especially wind energy (Scheme S16). A significant improvement was observed for those impact categories that are highly dependent on electricity production at any point in the cradle-to-gate timeframe, irrespective of whether the method is electrochemical or not. For the Ni foam, a decrease in impact was found for all impact categories, with an improvement of up to 53% found for eutrophication (Scheme 6). The Pd/C method showed a similar trend, with improvements of up to 59% for the same impact category (see Supporting Information, Section S4.2.2). Scheme 6. Impact reduction per each impact category for the theoretical future scenario using a proposed 2030 energy mix.