PV modules are often compared on the basis of their area utilization factor.
But what is behind this?

The comparison at module level

The reason for the different watt classes of modules is usually the different size of the module and not always, as is often assumed, possible technological leaps.
This is because it is often not a case of a technologically more valuable module, but simply a larger module that enables a higher wattage due to its size.

By calculating the area utilization factor, solar modules of different watt classes can be compared.

The area efficiency of solar modules can be calculated by dividing the watt class of the solar module by the area of the module in m². The comparison of the modules with each other can thus be precisely calculated and verifiably confirmed.

Compactly explained:

The area utilization factor is a measure of the effectiveness of a solar module in relation to the possible wattage and the area of the module. The higher the calculated degree, the greater the effect.

You can obtain a brochure on the surface utilization factor here: