Chinese researchers have modeled the impacts of clouds and aerosols on PV potential in southern China and northern India, which are similar in terms of latitude and elevation. They found that China offers lower PV potential due to a higher cloud effect.
Beatriz Santos
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The scientists explained the variations in the cloud effect between the two regions in terms of co-variations in cloud fraction and optical depth. Southern China has nearly twice as much cloud density as northern India. Clouds are also thicker and therefore transmit less solar irradiation.
The researchers found that aerosol optical depth is higher in southern China than in northern India, but aerosol impacts on POAI are similar in magnitude over the two regions.
“The aerosols mostly composed of dust and sulfate over [northern India] are found to be nearly three times more efficient in reducing POAI than the counterpart which is manually composed of sulfate over [southern China],” said the scientists.
They shared their findings in “Diverse cloud and aerosol impacts on solar photovoltaic potential in southern China and northern India,” which was recently published in Scientific Reports.
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