By Rubina Singh, PV engineer at the Fraunhofer CSE; Dr Cordula Schmid, PV scientist at the Fraunhofer CSE PV; Dr Jacqueline Ashmore, Engineering Programme Manager at Fraunhofer CSE,
Performance | Potential-induced degradation (PID) has emerged as an issue of concern in the last decade because of the increase in the deployment of utility-scale high-voltage PV systems. Rubina Singh, Cordula Schmid and Jacqueline Ashmore of the Fraunhofer Center for Sustainable Energy Systems CSE present an overview of the mechanisms for PID and the impact of degradation, as well as the factors that contribute to its occurrence. They also discuss techniques for the detection, mitigation and predictive testing of PID.