Peak sun hours (PSH) is a parameter used to indicate the amount of energy per day that reaches a certain location on the earth’s surface from the sun. Knowing it will simplify calculations when planning a solar-powered system.
STC and PTC are both test conditions used to rate the performance of a photovoltaic module (PV panel), while NOCT is referred to the PV cell temperature and it’s obtained under prefixed environmental conditions. Of course, it’s not necessary to know what they are in order to buy a solar panel. However, if you want to make a better deal, these parameters are very handy. Let’s see how