In the Okuno group, we are developing an electrochemical process to generate chemicals and fuels, such as sodium formate, formic acid, and carbon monoxide, from carbon feedstocks. These feedstocks include CO2 gas and bicarbonate aqueous solutions, using electricity and water. We conduct fundamental studies of the conversion process using a potentiostat/galvanostat in an H-type cell configuration (referred to as Electrolyzer 1). This setup is then integrated into a flow electrolyzer system (Electrolyzer 2) for larger-scale assessments, including evaluations of energy efficiency and economic analysis. Additionally, we study and develop pathways to creating efficient, low-cost, and sustainable electrocatalysts, keeping in mind the performance standards relevant to industrial applications.