Standard Test Conditions Stc For Solar Panels

Standard test conditions stc standard test conditions stc are the industry standard lab testing conditions that solar panels go through.

Standard test conditions stc for solar panels.

Temperature is the other key test condition everything is at 77 f. This includes the cells temperature of 25 77. Temperature of the cell 25 c. Having set criteria for all solar panels helps to ensure that all panels are held to the same guidelines and essentially that the same rating system is being used across the board.

Manufacturers use stc testing to ensure that photovoltaic panels with similar energy output can be sold and used together. Specifically the light intensity is 1000 w m 2 with a spectrum similar to sunlight hitting the earth s surface at latitude 35 n in the summer airmass 1 5 the. Test conditions and solar panels standard test conditions stc stc is the set of criteria that a solar panel is tested at. Standard test conditions stc refers to the fixed set of laboratory conditions under which every solar module is tested.

Standard test conditions the nominal power of pv devices is measured under standard test conditions stc specified in standards such as iec 61215 iec 61646 and ul 1703. The electric output performance of crystalline silicon and thin film pv modules are generally measured under standard test conditions stc ensuring a relatively independent. But what s standard about them. By using a fixed set of conditions all solar panels can be more accurately compared and rated against each other.

There are three standard test conditions which are. Because these conditions are the same across the industry one panel s performance metrics such as power rating module efficiency optimal voltage etc can be more accurately compared against other options on. If you want an easy way to compare the efficiency of one solar panel to another look for the stc rating. Stc stands for standard test conditions and are the industry standard for the conditions under which a solar panel are tested.

These testing conditions are called standard test conditions or stc. Well the light source is calibrated to a defined set of wavelengths and so that precisely 1 000 watts per square meter fall on the front glass of the solar panel. Since voltage and current change based on temperature and intensity of light among other criteria all solar panels are tested to the same standard test conditions.