Impact on Performance
Some parts of the PV plant are heavily soiled (soiling loss determination was not possible due to bad weather). The loss is estimated to be >10% based on past experiences.
Based on the simulation, the shading losses due to the surrounding buildings is ca. 4.8%.
PID was found to be in a fairly advanced stage. This could result in a performance loss of as high as 10% at the system level, based on PI Berlin experiences (on-site measurement was not possible).