What is operation & maintenance (O&M) of photovoltaic (PV) systems?

This guide considers Operation and Maintenance (O&M) of photovoltaic (PV) systems with the goal of reducing the cost of O&M and increasing its effectiveness. Reported O&M costs vary widely, and a more standardized approach to planning and delivering O&M can make costs more predictable.

What makes a successful PV maintenance program?

A successful maintenance program seeks to minimize failures, maximize production uptime, and reduce production loss through timely interventions. Once a maintenance strategy is determined, the focus shifts to scheduling, presenting an optimization challenge to ensure continuous and reliable operation of the PV system.

Why is maintenance management important for PV power plants?

Therefore, maintenance management is essential for reliable and effective operation of PV power plants, ensuring uninterrupted system operation and minimizing downtime. Compared to well-established technologies such as hydro, thermal, and wind, the O&M processes for PV systems are not yet fully structured in many operating companies .

Does PV O&M cost model predict corrective maintenance costs?

Appendix C contains service descriptions for corrective maintenance selections available in the PV O&M cost model. This cost model (described in Section 9) provides an estimated prediction of the corrective maintenance costs from year to year, but it is impossible to accurately predict when and where failures will specifically occur.

How can a PV system improve O&M?

Drivers to improve PV O&M include the following: increase efficiency and energy delivery (kWh/kW), decrease downtime (hours/year), extend system lifetime (say from 25 to 40 years), reduce cost of O&M ($/kW/year), ensure safety and reduce risk, enhance appearance, and meet requirements of financing and warranties.

How do I manage a fleet of PV systems?

Operating and maintaining a fleet of PV systems requires active resource management and data acquisition and analysis by the asset and operation manager(s). Outsource the service to a specialized third-party O&M provider.