Operation and Maintenance of PV Systems: Data Science, Analysis, and Standards

Andy Walker, Jal Desai, Thushara Gunda, Nicole Jackson

Research output: NRELTechnical Report


This effort improves the effectiveness and reduce uncertainty in O&M cost through four primary objectives/tasks: 1) institutionalize standards for reliability and availability reporting for large PV power plants; 2) bridge systemic O&M knowledge gaps around important topics affecting O&M; 3) characterize systemic failure modes and patterns and accelerate O&M experiential learning cycles using field data; and 4) establish a baseline understanding of UPVS O&M cost drivers. Key results of this effort include publication of IEC standards, published topical papers on O&M topics, training, and characterize field data for climate- and service-related patterns (additional details below). Integrating these results serves to reduce performance risk and facilitate improvement in the way solar projects are operated and maintained. Results are well received and two publications are among the most successful SETO publications at NREL ("Model of Operation and Maintenance Costs for Photovoltaic Systems with over 40,000 downloads and "Best Practices in Operation and Maintenance of PV Systems, 3rd Ed." with over 90,000 downloads).
Original languageAmerican English
Number of pages11
StatePublished - 2023

NREL Publication Number

  • NREL/TP-5C00-85819


  • cost estimate
  • cybersecurity
  • failure data
  • insurance
  • maintenance
  • operation
  • performance
  • photovoltaics
  • severe weather


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