Determination of Solar Panel’s Characteristics by Flash Testing

Nowadays, more and more solar power plants are being built. In many cases, the performance of the panels deteriorates rapidly. However, in the case of low productivity, a conditional assessment is required. The reason for production loss can also be manufacturing, installation, and operational errors. A flying drone was used for founding failures by thermographic scouting. These panels, that have huge temperature difference, must be investigated, as far as possible on-site. The essence of the Flash test is that the V-I characteristic curve of the solar module as well as can be examined under laboratory conditions. The Flash tests were used to determine the electrical parameters of the solar panels at the time of testing. The tests were performed in an accredited mobile measuring laboratory.