Can a new enhanced PV index be used to map national-scale PV power stations?

Conclusions In this study, a new enhanced PV index (EPVI) was proposed for mapping national-scale PV power stations, and an evaluation process of module area calibration, power generation calculation, and carbon reduction estimation was constructed to quantify the carbon reduction benefits of existing PV power stations across China in 2020.

Can epvi improve the accuracy of national-scale PV power stations?

EPVI inclusion can improve the mapping accuracy of national-scale PV power stations, with China’s total PV installation area in 2020 estimated as 2635.64 km 2, achieving an overall accuracy of 0.9756 and a Kappa coefficient of 0.9394.

What is the power generation capacity of China's PV power stations in 2020?

With the PV module degradation rate considered during evaluation, the power generation capacity of China's PV power stations in 2020 was calculated to be 238.65 TWh.

Which slopes are not suitable for building PV power stations?

Firstly, based on a priori knowledge in the field of PV, regions with slopes > 25° are not suitable for building PV power stations due to high construction and maintenance costs, thereby filtering out the noise with slopes > 25° .

What is PV installed capacity?

PV installed capacity shows the country’s exposure to the PV technology deployed within its borders. The installed capacity is calculated as the maximum output of electricity that a generator can produce under optimal conditions.

Which region has the highest PV power potential?

Of the many remarkable patterns displayed by the maps, we want to highlight two of them. First, the highest PV power potential is observed in the Andes region in South America. In absolute val-ues, the PV power potential is 15%–20% higher compared to other similar climate regions of the world, such as the Arabian Peninsula or north Africa.