Solar Energy (Photovolatics)
In large Photovoltaic (PV) generation plants, central inverters are a critical component affecting system performance. If a central inverter fails or stops operating, there will be a large, negative impact to the plant capacity and energy production. Given the critical nature of the central inverter in a PV plant, monitoring and maintenance efforts are focused on keeping inverters operating and preventing downtime. Understanding the most common fault and failure modes of inverters will help develop standards around preventative maintenance and condition based maintenance practices, especially focused on inverter post warranty expiration maintenance tasks. Through "expert elicitation" and data analysis of fleet maintenance logs (50+ sites), we will analyze fault and failure trends, discuss best practices for inverter maintenance and investigate standardization of fault and failure codes to improve plant performance baselines.