Accelerated adoption of electrochemical processes requires additional R&D to address several key barriers. First, electrochemical systems must be capable of operating for long periods (>10 years) without significant degradation in key performance metrics. Degradation of an electrode, membrane, device, or system can be expressed in terms of two related but different metrics: (i) long-term stability at constant conditions (i.e., constant applied potential and/or current), and (ii) durability under dynamic operating conditions. The dynamic operation could entail step changes or ramp up/down of input power, changes in temperature, pressure, and composition of chemical streams entering each unit operation. Based on these considerations, it is important to study degradation phenomena under industrially relevant dynamic operating conditions to inform operational limits and electrode/reactor design strategies to minimize degradation issues.