Ongoing operations and maintenance (O&M) can have a huge impact on how well a PV site performs, yet system designers don't often give adequate consideration to O&M when system design work is initially performed -- particularly the O&M requirements of balance of system (BoS) components. (BoS comprises all component of a PV system other than the PV panels. This includes wiring, switches, support racks, and inverters. In the case of free-standing systems, land is sometimes included as part of the BoS [1].)

Maximizing performance and decreasing LCOE of a PV site calls for putting as much vision, strategy, and understanding into the O&M plans as the initial PV site plans when a system is in development.