What is the Module Nominal Output Power (Module PNOM)?
This is the nameplate rating or nominal output power of the panel under Standard Test Conditions. When modules are mounted in a PV system they are usually operating at temperatures that far exceed the temperature used for the Standard Test Condition. For more information about the differences between Standard Test Conditions and real operating conditions please read STC, PTC, and Power Production from our FAQ’s section. The power that is produced from a PV panel is inversely proportional on the temperature of the PV cells. At higher temperatures, the PV panel will produce less power than its nominal STC rating. (Taken from SMA-America ’07.
