In the context of the strategies needed to mitigate CO2 emissions and combat climate change, electrochemical CO2 reduction represents a promising alternative. This approach offers an interesting opportunity to capture and store renewable electricity and CO2 in the form of chemicals and fuels. Until some years ago, researchers focused their work observing the effects of surface modification (e.g. nano-structuring and surface tailoring) on catalyst selectivity and activity. To date, few studies have been carried out on the overall system design. In order to overcome the limitations of operation with dissolved CO2 and to pursue commercially-relevant current densities, several reactor architecturesare being addressed: among those, GDE-based systems and MEA are widely studied designs.