Issues with reduced yield? Approaching end of warranty? Aerial PV inspection identifies and locates faults precisely. We combine and automate classic and preventive inspections of solar power plants with image-based methods like visual depth scan at cell level, thermography, electroluminescence and UV-fluorescence measurements, and with IV-curve recording by day and night, isolation issues detection, serial number scan, and geography data referencing. To this end we employ tripod- and drone-based sensor systems, providing a cost-effective check-up by systematic sampling or 100% screening. EL measurements offer a comprehensive and exact assessment of faults on cell level and thus represent the tower of strength of the AePVI concept.