Solar manufacturer Innotech Solar reports that it has gone three years with its solar module production free from any hot spots.
The Norwegian company acknowledged that hot spots increase the temperature of solar panels, which can lead to loss in the yield of a PV system and, in some rare cases, the module erupting in flames.
Paul Grunow, director of the Photovoltaic Institute in Berlin said that Innotech Solar is one of the few cell manufacturers he knows that performs hot spot tests, which can catch risky areas at an early stage and isolate them using a laser.
“Aside from hot spot tests, we subject our modules to other stringent tests,” said Thomas Hillig, director of sales and marketing at Innotech Solar. Tests include long-term, isolation poor light performance, degradation and electroluminescence observation. “Our customers value the European quality of the modules. We are winning over an increasing number of customers who have had bad experiences with Chinese solar modules in the past,” Hillig concluded.