In 1997, a young man named Cao Renxian gave up the "iron rice bowl" of a college teacher and dived into the world of business. At that time, such a decision was seen as a bold act, but Cao had a strong belief that he would one day succeed in the area to which he planned to devote his career - new energy.

He stuck to his aim of manufacturing power supply equipment for wind power projects and solar photovoltaics (PV) - technology in which daylight is converted into electrical power.

Fourteen years later, in November 2011, a PV company named Sungrow Power Supply Co Ltd was listed on the Shenzhen Stock Exchange. Cao, of course, was its CEO.