This dataset represents the average power generation situation of distributed photovoltaic power stations in China. Its data are obtained by weighted aggregation of the production datasets of Beijing, Tianjin, Hebei, Shanxi, Inner Mongolia, Liaoning, Jilin, Heilongjiang, Shandong, Henan, Shaanxi, Gansu, Ningxia, Xinjiang, Anhui, Guizhou, Shanghai and other provinces (regions, municipalities). Distributed photovoltaics are generally photovoltaic power generation systems with a relatively small installed scale and arranged near users; they are photovoltaic power generation facilities connected to the low-voltage grid or to nearby electricity loads. For the production datasets of specific regions, distributed photovoltaic power generation is typically represented by double-glass and single-glass crystalline silicon cell modules installed on flat roofs; the on-grid electricity of different modules over the life cycle is adjusted according to the local first-year utilization hours of fixed photovoltaic power generation, the module life and the comprehensive auxiliary power consumption rate of the plant. The module life of photovoltaic power generation is set according to official specification standards, namely the technical service life of single-glass modules is 25 years and that of double-glass modules is 30 years.