*3.3. Determination of PV Potential Profiles*

The modelling of the PV potential profiles is based on an irradiation model according to Perez et al. [32–34], which is described in more detail in Duffie et al. [35] and Pretschuh et al. [36]. Based on the irradiation and temperature data as well as data from the described solar roof register, the model calculates the direct and diffuse share of the radiation on the inclined surface and converts it into electricity. As a result, annual time resolved PV potential profiles are generated for each cell, which take into account seasonal conditions based on real irradiation and temperature data. A penetration of 100% PV potential requires that all potential roof areas classified as "good" and "very good" in the solar roof register are considered during the determination of the PV potential profiles.
