Air pollution damage solar power efficiency
A new study by scientists in the United States and India shows that dust and man-made pollutants in the air can seriously damage the efficiency of solar power plants, in some countries where the loss is more than 25%, in China, India and the Arabian Peninsula and other countries with Large installed capacity. These areas are worst victim.
the researchers of The United States Duke Universityand Indian Institute of Technology Gandhi Nagel and other institutions , the analysis of the suspended particles in the air and their dust on the solar panels formed on the power generation efficiency.
Researchers observed the solar panels set up at the Indian Institute of Technology at Gandhi Nagel and found that if the dust was cleaned up every few weeks, the power generation efficiency would increase by 50% after each cleanup. 92% of these dust is natural dust, the rest of the human activities of carbon, iron and other pollutants.
Accurately calculating the effects of various components found that the ability of the pollutants to block the sun is much stronger than the dust, the 8% of the pollutants on the power generation efficiency damage and 92% of the dust roughly the same. Other areas of air suspended particles in different composition, dust components and its impact on the power generation efficiency is also different.
In addition, suspended particles reduce the transparency of the air, so that the sun to reach the ground to reduce, will reduce the solar power generation efficiency. The team used NASA's global climate model to analyze the impact of this.
Consolidated calculations show that solar power efficiency losses in eastern China, northern India and the Arabian peninsula are 17 to 25 percent if the dust is cleared once a month; if the two months are cleared once, the loss will increase to 25 to 35 %. The Arabian Peninsula suffered more losses due to natural dust, and China and India suffered more losses due to man-made pollutants.