Maintenance in large wind farms spans mechanical, electrical, structural, and control systems, and is typically a mix of scheduled inspections and condition-based interventions. Teams routinely inspect blades for erosion, cracking, lightning damage, and internal defects; verify pitch system performance through actuator cycling and battery testing; and monitor gearboxes and generators using oil analysis, vibration trends, and temperature data.
Yaw systems, cooling loops, and electrical components are also checked for wear, alignment, lubrication, and insulation integrity. At scale, the challenge is not performing individual checks, but coordinating them across dozens or hundreds of turbines in a way that prioritizes risk, minimizes downtime, and avoids reactive repairs.