Category: Energy Storage
There has been tremendous growth in solar installations over the last couple of decades. In addition to capacity, we are also seeing an increase in age of our systems over time, which has generated new and unknown set of challenges regarding how we maintain productivity and performance in aging photovoltaic (PV) systems. PV plants, in effect, are complex systems due to interactions between physical and social components; there are many parts and interconnections in PV plants whose performance is influenced by climate conditions as well as corrective and preventative maintenance practices. With numerous non-linear pathways affecting the dynamics of the system state at any given time, understanding the issues and possible solutions required to optimize PV plant operations becomes a significant challenge. Fortunately, most PV plants have ongoing data collection pipelines that can help inform current practices. This talk will focus specifically on the O&M ticketing systems and how they are a wealth of information for not only informing which system issues to repair but also understand systemic issues facing the industry. Specifically, a topology for O&M ticketing systems will be presented that will highlight the different types of analyses that can be conducted based on what is captured in the O&M ticketing systems (e.g., developing distributions for time-to-failure and time-to-repair statistics for different components). All information presented in the talk will be informed by data and insights gained from industry partners that have partnered with Sandia National Laboratories on this effort. Feedback from diverse aspects of the industry (including power plant owners, O&M service providers, and data scientists) is welcome to help ground-truth the findings presented and help steer research directions as well as dissemination strategies of future efforts.
Thushara Gunda– Senior Member of Technical Staff, Sandia National Laboratories