As wind fleets age and turbine sizes increase, blade erosion is a common growing operational challenge. Leading‑edge erosion, caused by repeated impacts from rain and airborne particles, gradually reduces aerodynamic performance and energy output, making regular repairs essential. Traditionally, blade repairs have relied on rope‑access crews or large platforms. These methods are labor‑intensive, weather‑dependent, and often require extended turbine outages.

ENGIE Research & Innovation is testing a robotic repair solution developed by Latvian start-up Aerones that rethinks how this work is done. Instead of relying solely on rope access technicians or heavy platforms, the system uses robotized equipment to inspect and repair blade surfaces directly on the turbine. Field trials showed the approach can significantly reduce repair time while improving worker safety and limiting turbine downtime.

While not suited for severe structural damage, robotic repairs offer a practical option for routine erosion maintenance. For commercial wind operators, this type of innovation highlights how automation and digital tools can help extend asset life, improve availability, and manage costs as wind power continues to scale.

Read more: ENGIE.com