Unveiling deployable rooftop solar potential across Chinese
Here we assess the deployable potential of RPV across 367 Chinese cities by incorporating variations in building types, regional characteristics and policy limitations. Our
The eastern region has great accumulated photovoltaic electricity potential, which is 3.21 times that of the western region. Rooftop photovoltaic system plays an important role in solar energy power generation especially in urban. In this paper, we present an assessment method for the PV power generation potential of rooftop in China.
Therefore, there is a need to investigate the solar energy potential of rooftop PV generation systems to further improve the use of roofs for solar energy production. The research scale of such studies are generally divided into city or building scale. 2.1. City-scale studies
Rooftop solar photovoltaics use building roof resources to design distributed photovoltaic power stations (Tripathy et al., 2016). It can help reduce greenhouse gas emissions and accelerate the green energy transformation to achieve sustainable development goals (Agathokleous and Kalogirou, 2020).
The rooftop photovoltaic generation will be closed to half of the electricity generation of China mainland in 2020. The eastern region has great accumulated photovoltaic electricity potential, which is 3.21 times that of the western region. Rooftop photovoltaic system plays an important role in solar energy power generation especially in urban.
The conclusion is that the national rooftop distributed photovoltaic development potential is 2597.64 GW and the power generation potential is 3265.41 TWh/year. Tianzhi Qiu et al. use SSR radiation data with a resolution of 10 km * 10 km, and the power generation factor (kWh/ m 2) is calculated by combining with temperature data (Qiu et al., 2022).
However, all types of buildings in urban and rural areas are considered in our study, including household, commercial and public buildings. The conclusion is that the national rooftop distributed photovoltaic development potential is 2597.64 GW and the power generation potential is 3265.41 TWh/year.
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