@inproceedings{18387,
  abstract     = {{ During comparative measurements of different PV microinverters, two yield issues came up that could 
not be explored via conventional efficiency measurements, but do have a significant impact on electrical energy 
yield: First category of issues are either sluggish or nervously acting maximum–power–point–tracking devices, which 
lead to reduced energy yields. The other category of issues is thermal: As a first explanation for observed reduced 
energy yields, it has been assumed that the conversion efficiency degrades at higher operating temperatures. This 
matter has been investigated in this article: A change in conversion efficiency could not be observed for elevated 
operation temperatures up to 50°C, despite high-precision and repeated measurements. But it was found that some 
inverters temporarily interrupted (or entirely stopped) operation after long periods of running at high temperatures. 
Also, a reduction in potential maximum power output has been detected for those inverters. Summarizing: With a 
high degree of certainty it can be stated that those reported yield losses have been caused by the temporary shutdowns 
and power limitations of the inverters.}},
  author       = {{Krauter, Stefan and Bendfeld, Jörg}},
  booktitle    = {{Proceedings of the EU PVSEC 2020 }},
  issn         = {{3-936338-73-6}},
  keywords     = {{AC-modules, Microinverter, Power Conditioning, Thermal Performance, Ventilation, Stability, Efficiency, Yield}},
  location     = {{online}},
  pages        = {{1179 -- 1180}},
  title        = {{{Elevated Temperatures Affecting Efficiency, Overall Performance and Energy Yield of PV Microinverters}}},
  doi          = {{10.4229/EUPVSEC20202020-4AV.3.6}},
  year         = {{2020}},
}