5. Script programming
Script programming is used where more complex calculations and evaluations are necessary that cannot be
performed by simple formulas.
The sample script contains a section for certain service alerts and a section for module power loss
calculation. The power loss calculations of the entire module are based on the publication by German Institut
für Solarenergieforschung Hameln ISFH :
M Koentges The risk of power loss in crystalline silicon based photovoltaic modules due to micro-cracks,
published 2010.
For calculating the power loss of a module, each double string is investigated separately. The power loss
caused by the most damaged single cell is calculated according to findings of Koentges and the power loss
as a sum of all individual cell losses is calculated. The bigger power loss value is used for the sum of the total
module.