In November 2018, a small suspension hook on a transmission line in California broke, leading to a devastating wildfire. This incident, blamed on inadequate inspections, resulted in 85 fatalities and massive financial losses for the energy company involved. Unfortunately, such equipment failures are increasingly common as our infrastructure ages.
Even though inspections are conducted regularly, monitoring vast stretches of power lines presents a significant challenge. Typically, crews use helicopters, equipped with cameras and sensors, to inspect for issues. However, there’s a pressing need for better methods to prevent disasters like this in the future. The solution may come in the form of unmanned aerial vehicles (UAVs).
Drones, specially designed to carry heavy sensors, offer notable advantages over traditional helicopters. They can fly the same paths repetitively, maintaining a fixed position. This capability allows for more consistent data collection, which can be analyzed using AI. By examining data from specific viewpoints, companies can spot early signs of issues like erosion, which can indicate potential equipment failures. This proactive approach allows maintenance teams to address problems before they escalate.
Moreover, drones reduce safety risks for crew members, use less fuel, and are generally more cost-effective. So, why aren’t they the default option for inspections in the industry?
The Federal Aviation Administration (FAA) is working on new regulations to allow commercial drones to operate beyond the operator’s line of sight. This rule, known as Part 108, has been in development amidst administrative changes and various challenges.
Recently, a new executive order has expedited the approval process for this regulation, aiming to establish rules and metrics for drone operations within a specific timeframe. This means that the energy sector might soon gain wider access to drone technology for inspections.
With these advancements on the horizon, utility companies and infrastructure managers should consider how they will incorporate drones into their inspection processes. The future of infrastructure oversight looks promising, with increased safety and efficiency on the way.

