How APG Is Transforming Substation Inspections with Autonomous Drone Operations
- 6 hours ago
- 2 min read
Reliable energy infrastructure depends on constant oversight, precise inspections, and fast response times. Power substations are among the most critical assets in any national grid, and keeping them operational is essential for energy security.
To modernize this process, Austrian Power Grid (APG) has implemented an autonomous drone inspection system powered by DJI Dock and Drone Harmony.
The result: safer inspections, better thermal data, faster response times, and more efficient use of expert resources.
The Challenge of Traditional Inspections
Before drone automation, thermal inspections were performed manually using handheld thermal cameras.
This required maintenance personnel to physically walk through substations and inspect each component one by one.
That created several challenges:
Inconsistent camera angles
Varying distances to equipment
Sunlight affecting thermal measurements
Wind reducing image quality
Significant time spent on-site
Difficult year-over-year comparisons
For critical infrastructure, consistency matters. Manual inspections often made repeatable measurements difficult.
The Shift to Autonomous Inspections
With drone docks installed across Austria, APG can now launch inspection missions automatically and remotely.
Once a route is created by trained drone pilots, it can be repeated anytime without requiring an on-site pilot.
This enables inspections:
During the day or night
On demand
With repeatable flight paths
With standardized image capture
From remote locations anywhere in Austria

Why This Matters
1. Better Thermal Data
Each mission captures images from the exact same position and camera angle.
That means APG can compare inspections over time and detect small changes before they become failures.
2. Improved Safety
Instead of climbing pylons or accessing hard-to-reach components, teams can inspect assets remotely.
3. Faster Response to Defects
If an issue occurs, personnel can instantly log in, launch a mission, and receive live visual feedback.
4. Better Use of Skilled Experts
Field technicians spend less time collecting data and more time analyzing results and solving real problems.

The Power of Thermal Inspections
Thermal imaging is one of the best ways to assess equipment health.
Loose connections, overloaded conductors, and failing components often generate heat before they fail. Detecting these hotspots early helps prevent outages and costly downtime.
Autonomous drones make this process scalable, repeatable, and significantly faster.
Built for Grid Operators
APG manages around 87 substations, while only a small number have permanent staff on-site.
That makes autonomous dock systems especially valuable: even remote substations can be inspected immediately without waiting for personnel to travel.
The Future of Infrastructure Monitoring
The combination of autonomous flight, thermal analytics, and intelligent mission planning is redefining infrastructure inspections.
For utilities, grid operators, and industrial asset owners, this means:
More uptime
Safer operations
Better data
Smarter maintenance decisions
Autonomous inspections are no longer experimental. They are operational today.
Ready to modernize your inspections with autonomous drone operations? Contact Us!



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