In today's society, high demands are placed on buildings to be energy efficient both in new construction and renovations. To reach those demands various types of energy efficient solutions are available. A solution that are less used in Sweden are Photovoltaics (PVs) and the market for PVs have a big upside. The total energy from solar in Sweden is less than 1% of Sweden's total produced energy, but if all suitable roofs for solar electricity were to be used, a third of Sweden's electricity production could be met. The main aim of this study is to examine the PV production of Building Integrated Photovoltaics (BIPV) and Building Applied Photovoltaics (BAPV) solutions at the same conditions. The secondary aims are to compare the results of the BIPV with different locations in Sweden and to investigate the impact of the gap at the back of the PV modules. The method for the study is to model a building with PVs on the roof and a building with PVs on the facade using the energy simulation program IDA ICE. The buildings are then simulated first without PVs, then with BIPV systems in two different locations, Umeå and Hörby Skåne and finally with BAPV systems. Then the results are analysed. The results from the façade BIPV system in Umeå are 13.16 MWh produced electricity. The BIPV system in Skåne produced 11.7 MWh electricity. That’s an 11.5 % decrease compared to the building with BIPV system in Umeå. The building with BAPV system in Umeå produced 15 MWh, that’s a 12.4 % increase compared to the building with BIPV system in Umeå. The roof BIPV system designed in Skåne generated 3.85 MWh of electricity while the same system produced 4.03 MWh in Umeå which is a 4.6 % increase. BAPV system with similar output power as the BIPV system generated 4.61 MWh of electricity. In comparison, the BIPV system with 50 mm gap between the panel and the roof, produced only 3.80 MWh which is a 19.3% lower production than the BAPV system. From these results it is observed that the panel temperature is an important factor for the efficiency in the electricity production of a PV system. The efficiency will be lower for PV when these are exposed to higher temperatures, which easier accrues when the air gap between the façade and the PV are small. In comparison of the locations, it can be seen that the lower outdoor temperature influences to reduce the panel temperature, increasing the panel efficiency. And that location has a big impact on the production of electricity from the PV.