Illustration of photovoltaic panels on rural roofs

Can a 3D model predict solar PV potential of rural rooftops & facades?

To address this issue, we proposed a novel approach, which for the first time constructs rural 3D building models from publicly available satellite images and vector maps. Based on these models, it precisely evaluates the solar PV potential of rural rooftops and facades.

Are roof-mounted solar PV systems a viable energy source for rural microgrids?

In rural areas, roof-mounted solar PV systems are among the main energy system development targets, and the spatial distribution information of PV power generation is crucial for the construction of rural microgrids.

How can solar PV be used in rural areas?

The rural annual electricity demand can be satisfied by installing PV modules on all rooftops or facades. Rooftops facing south and north and facades facing south and west have the highest PV potential ranks. They account for more than 80% of the rooftop solar PV potential and over 90% of the facade solar PV potential respectively.

Can rooftop solar energy be used in rural areas?

There are nearly no studies on rooftop solar energy potential in rural areas. Although PV is very prosperous in rural areas, it can meet the energy demands of local farmers and supply extra electricity to urban areas. This can promote clean energy in rural areas and improve the living conditions of farmers.

What is the solar PV potential of rooftops and facades?

Fig. 12 shows the annual solar PV potential of rooftops and facades with different orientations, as well as the total amount of these potentials in the village. The total solar PV potential (T_R + T_F) is 1.9 GWh, among which the rooftops and façades account for 71.7% (1.4 GWh) and 28.3% (0.5 GWh), respectively.

Are rural solar PV potential characteristics based on micro- and macro-scales?

Using the validated approach, case studies targeting Nanzhuang Village and Baguazhou Island were conducted to show the rural solar PV potential characteristics at micro- and macro-scales. The solar PV potential ranks for rooftops and facades with different orientations were also determined.