Germany's energy economy act in March 29, 1998 after the introduction of the German electricity market to compete. Its first electric power exchange, Leipzig electric power exchange, was formally established in June 16, 2000, the main trading varieties are calculated by the hour and the bulk of the auction of electricity commodity auction.

After 15 years of development, Germany after the separation of the placing, due to market competition, the expansion of the closure of the company in early 2014, Germany's electricity supplier is the terminal by a total of more than 1000 electricity providers, there are some of the same time and power supply of integrated Service Corporation. These companies in the initial stage to compete with the traditional power company, later still need to cross the extension of business, now in the emerging such as charging and storage can business each other but also launched fierce competition, so if to do some research about the large and small sale of electricity companies, found many interesting stories full of innovative means.