Double skin facade (DSF) offers many advantages in terms of energy saving, acoustic insulation and daylighting. To further improve the energy performance of DSF, it can be combined with photovoltaics (PV) and phase change materials (PCM). However, the energy performance of DSF, PV and PCM depends highly on climatic and geographical conditions. In this regard, the energy performance of DSF is studied in three scenarios under six distinctive climatic conditions namely Tehran, Tabriz, Shiraz, Esfahan, BandarAbas and Yazd. A parametric study is also conducted to assess the impact of various parameters on DSF performance. It was found that building integrated photovoltaic (BIPV) glazing can provide a large amount of building energy demand. The annual cooling load of the building with PCM located in Tehran, Tabriz, Shiraz, Shiraz, Esfahan, BandarAbas and Yazd is reduced by 39.28, 27.48, 49.92, 48.24, 77.53 and 64.47 MWh/yr. in comparison to the case without PCM.