Drone based annual PV inspections are conducted by many solar farms in order to locate and record PV anomalies for warranty and insurance claims. As some solar farms settle for yearly basic thermographic analysis, others enjoy a more comprehensive solution; conducting frequent drone inspections and detecting thermal anomalies at the panel level, e.g. hotspots, along with visual faults, such as soiling or vegetation growing over panels, in a timely manner, that can hamper energy production.