Press Ground inspection does not provide the necessary imagery and entire testing of the solar panels the same way that an aerial thermal imagine does.
A UAV Drone or a Quad-copter Drone can be programmed to do a surveillance inspection depending on the necessities of the solar, from using an infrared camera with thermal imaging to a normal UltraHD 4K Video in order to spot different areas of the solar panels at a high resolution.
At the same time, it can measure heat failings so that site crew can pinpoint the reason behind it.
Source: Using Drones to Inspect Solar Panels | Mile High Drones
