Employees of an electric power company install photovoltaic panels on the roof of a factory in Daishan county, East China's Zhejiang Province, on January 4, 2022. The distributed solar power project, covering an area of 19,580 square meters, can provide 1.62 million kilowatt-hours of electricity annually, saving about 654.64 tons of standard coal and reducing 1,283.4 tons of carbon emissions. Photo: VCG