Most wind turbines require maintenance at least once every two years however some turbines require more maintenance than others.  In addition to the maintenance requirements, wind farms require regular safety and operational inspections and monitoring so as to comply with regulatory requirements and ensure ongoing safety and efficiency of the project.

Maintenance and operational requirements for solar farms also vary.  Regular cleaning of the panels is required so as to maintain efficiency and land maintenance (weed and vegetation) is also required so as to ensure safe and unimpeded access and operation.  As with wind, regular safety and operational inspections are required to check the physical condition of the panels, mounting systems and electrical components.