Aerial photo taken on July 5, 2018 shows a photovoltaic power plant in Ruicheng County of Yuncheng City, north China's Shanxi Province. (Photos: Xinhua)

In recent years, the county has vigorously developed and utilized solar energy by building photovoltaic power plants on barren mountains.

Aerial photo taken on July 5, 2018 shows a photovoltaic power plant in Ruicheng County of Yuncheng City, north China's Shanxi Province.

In recent years, the county has vigorously developed and utilized solar energy by building photovoltaic power plants on barren mountains.

Aerial photo taken on July 5, 2018 shows a photovoltaic power plant in Ruicheng County of Yuncheng City, north China's Shanxi Province.