Usage of solar energy is increasing steadily especially in the rooftop installations of buildings in large cities. This study contains calculations of electrical energy produced by photovoltaic panels placed on roofs of buildings for city of Istanbul using building data and verify calculated results by a mobile measurement system. Three dimensional city model utilizes light detection and ranging data that covers an area of 5400 km² for the whole city. The main object classes such as ground, building, vegetation were derived, buildings are vectorized and a digital elevation model are used for the generation of a second level of detail. Using the geometric data of the buildings in Istanbul as input to the developed software, the electricity production of panels is calculated on the suitable roofs of the buildings considering the observed climatic conditions and solar radiation for the city. A photovoltaic weather mobile vehicle measurement system was designed and applied for verification of developed model in eight different areas of Istanbul for stationing 50 days at each location. Results of difference between measurements and calculations of solar irradiation and electrical energy production are 2.44% and 14.70%, respectively. Batch processing was performed on 39 districts of Istanbul with 1.3 million buildings and annual electrical energy production from the roofs of all buildings is calculated to be 30.8 TWh at the point of common coupling to the utility. Total rooftop electricity production of Istanbul has a potential to meet 67% of the total electricity consumption for the year 2019.

太阳能的使用正在稳步增加，尤其是在大城市建筑物的屋顶装置中。本研究包含使用建筑数据计算伊斯坦布尔市建筑物屋顶上放置的光伏电池板产生的电能，并通过移动测量系统验证计算结果。三维城市模型利用光探测测距数据，覆盖面积5400 km ²对于整个城市。主要对象类，如地面、建筑物、植被被导出，建筑物被矢量化，数字高程模型用于生成第二级细节。使用伊斯坦布尔建筑物的几何数据作为开发软件的输入，考虑到观察到的气候条件和城市的太阳辐射，在建筑物的合适屋顶上计算面板的发电量。一个光伏天气移动车辆测量系统被设计并应用于伊斯坦布尔八个不同区域的开发模型的验证，每个位置驻扎50天。太阳辐射和电能生产的测量和计算之间的差异结果分别为 2.44% 和 14.70%。对伊斯坦布尔 39 个地区的 130 万座建筑物进行了批处理，所有建筑物屋顶的年发电量在与公用事业的公共耦合点计算为 30.8 TWh。伊斯坦布尔的屋顶总发电量有可能满足 2019 年总用电量的 67%。