Drone use is increasing for industrial inspections at electrical switching sites and high-voltage areas, offering a safer and more efficient alternative to traditional methods. These sites pose significant risks for workers due to the high levels of electricity and challenging access points. Drones equipped with high-resolution cameras, thermal imaging and sensors can fly near live electrical lines and equipment while capturing detailed data without shutdowns or putting personnel in harm’s way. This approach significantly reduces inspection times while minimizing human risk, which improves safety and operational efficiency.

A variety of companies can use drone on their sites. Utility companies can use drones to inspect transmission lines, substations and high-voltage areas for damage or wear. Renewable energy firms may use them for wind farms or solar fields to monitor infrastructure and identify maintenance needs. Inspection service providers often offer drone-based inspection services for utility infrastructure. Construction companies involved in building electrical grids use drones to monitor progress and ensure safety. Telecommunications firms may use them for inspecting power supplies and connections to communication networks.

Announced in an August 2024 press release, researchers at Oak Ridge National Laboratory (ORNL) have developed an automated drone system to inspect power lines and respond to grid irregularities, especially in hard-to-reach areas. The drones, equipped with sensors and cameras, can identify potential issues such as electrical arcing, then relay real-time data to operators for quick action. This innovative system reduces the need for human intervention and bucket truck deployments, lowering costs and improving response times. The project aims to strengthen grid reliability using affordable drones and specialized technology, with potential applications for routine and emergency inspections.

In another example, Pittsburgh-based Duquesne Light Co. launched a pilot project in 2023 using Skydio drones to inspect power lines without needing to shut them down. According to Donald Kunc, Duquesne’s general manager of operations technology, the drones have significantly improved safety and efficiency, cutting inspection times in half compared to traditional methods. Drones eliminate the need for workers to climb hills or ladders, reducing risks such as bee stings and falls. Equipped with high-resolution cameras and thermal sensors, these drones create 3D renderings of power lines and facilities. The pilot runs through 2025, with plans to expand drone use.

The future of drones in industrial electrical inspections is poised for rapid growth, with advancements in artificial intelligence, sensors and automation for faster, safer and more detailed assessments of high-voltage areas.