The final yield is defined as the annual, monthly or daily net AC
energy output of the system divided by the rated power of the
installed PV array at standard test conditions (STC) of 1 kW/m2
solar irradiance and 25 C cell temperature.This is a representative
figure that enables comparison of similar solar PV power plant in a specific geographic region. It is independent on the type of mounting,
vertical on a façade or inclined on a roof and also on the location.
The annual final yield is given by Eq