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DaySy Rover
Solarzentrum Stuttgart develops and tests the new fully automated daylight electroluminescence robot for inspecting ground-mounted systems.

Improvements in the measurement process
In the standard measurement procedure, Solarzentrum Stuttgart inspects the PV modules with the special camera, which is mounted on a tripod. The tripod is moved to the module by a specialist in order to carry out the measurement of a module. The new “DaySy Rover” robot automatically approaches the modules and carries out the electroluminescence measurement. The DaySy Rover has a significantly higher throughput and speeds up the measurement process.
Opportunities
The DaySy Rover has passed the tests in the field and has been ready for further measurements since July 2024. With the DaySy Rover, PV power plants in the megawatt range can now be inspected within a few days. The CEO and main developer of the project, Dr. L. Stoicescu, is confident: “The rover rocks!”
Technical data
- Image resolution up to 5 MP
- Daily inspected throughput of 1 MWp
- Speed up to 0.5 m/s
- Weight of approx. 50 kg
- Height 2 m & width 1.5 m
- Customizable length up to max. 4m
- Gap detection and bridging of 50 cm
The Link leads to the corresponding YouTube video of the DaySy Rover.
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