Rooftop Solar Photovoltaic Power Generation Research

Is rooftop PV the future of solar energy?

In 2020, 127 GW of new PV power generation were installed globally, bringing the cumulative installed capacity to 707 GW. Among the available technologies, rooftop PV is the inevitable trend of the coming decades. Understanding rooftop PV potential is critical for the development and utilization of solar energy.

Does rooftop PV potential estimation method perform well?

The rooftop PV potential was estimated to total 22,551 GWh. Therefore, the performance of the rooftop PV potential estimation method performs well. In this study, the solar radiation data are the global surface solar radiation (3 h, 10 km) which is more suitable for large-scale photovoltaic potential assessment.

Does a high-resolution global assessment of rooftop solar photovoltaics potential exist?

Yet, only limited information is available on its global potential and associated costs at a high spatiotemporal resolution. Here, we present a high-resolution global assessment of rooftop solar photovoltaics potential using big data, machine learning and geospatial analysis.

How is rooftop solar PV potential estimated?

Estimation of rooftop solar PV potential 3.4.1. Rooftop solar PV potential estimation model The solar radiation data used in this study come from the Copernicus Atmosphere Monitoring Service (CAMS). 3 These data are solar radiation data at the surface level with a clear sky taken at hourly intervals, and they are publicly available free of charge.

How do rooftops affect photovoltaic power generation?

As can be seen from the Figure 6, the photovoltaic power generation of each rooftop is mainly affected by the rooftop area. For selection of rooftops to install PV systems, many factors need to be considered, such as solar radiation, rooftop geometry, rooftop inclination and slope, shadows, etc., depending on data availability.

How many GWh can a rooftop solar PV system generate?

The annual rooftop solar PV potential was approximately 311,853 GWh, with a corresponding estimated power generation of 49,897 GWh in 2019. 1. Introduction As an emerging renewable energy technology, solar photovoltaic (PV) technology is recognized as an essential option for sustainable energy transformation .