Aerial photo taken on Sept. 19, 2019 shows staff members examining solar panels on the rooftop of a local automobile maker in Huzhou, east China's Zhejiang Province. New energy sources including distributed photovoltaic systems and wind farms have taken increased shares in the power supply of Huzhou since the city adopted a low-carbon development plan. (Xinhua/Xu Yu)

Aerial photo taken on Sept. 19, 2019 shows staff members examining solar panels on the rooftop of a local automobile maker in Huzhou, east China's Zhejiang Province. New energy sources including distributed photovoltaic systems and wind farms have taken increased shares in the power supply of Huzhou since the city adopted a low-carbon development plan. (Xinhua/Xu Yu)

Aerial photo taken on Sept. 19, 2019 shows solar panels on the rooftop of a local automobile maker in Huzhou, east China's Zhejiang Province. New energy sources including distributed photovoltaic systems and wind farms have taken increased shares in the power supply of Huzhou since the city adopted a low-carbon development plan. (Xinhua/Xu Yu)

Aerial photo taken on Sept. 19, 2019 shows staff members examining solar panels on the rooftop of a local automobile maker in Huzhou, east China's Zhejiang Province. New energy sources including distributed photovoltaic systems and wind farms have taken increased shares in the power supply of Huzhou since the city adopted a low-carbon development plan. (Xinhua/Xu Yu)

Aerial photo taken on Sept. 19, 2019 shows solar panels on the rooftop of a local automobile maker in Huzhou, east China's Zhejiang Province. New energy sources including distributed photovoltaic systems and wind farms have taken increased shares in the power supply of Huzhou since the city adopted a low-carbon development plan. (Xinhua/Xu Yu)