At an electric plant in southern Spain, mirrors as big as houses catch some of the 120 quadrillion watts of sunlight that constantly fall on Earth.

• 在西班牙南部的一家发电厂里，大如房屋的镜阵正在吸收着那源源不断地辐射到地球表面的十二亿亿瓦太阳能中的一部分。