Germany has been a powerful adopter of solar energy in Europe and exports modules around the world. It added 8,000 megawatts of solar modules last year,the equivalent of eight nuclear reactors, surpassing Italy, Japan and the U.S., according to Reuters.

However, China's solar companies have been benefiting from Europe’s and the United States' energy companies because the number of subsidies handed out by the PRC gives them a leg up against other countries' manufacturers. The U.S. and Europe's subsidies increase the use of solar energy, regardless of who makes the hardware whereas Chinese subsidies solely help solar manufactures, reported the news source.

"I think we're always afraid of a trade war so we don't act," said U.S. Senator Sherrod Brown. "The Chinese are never afraid of a trade war so they do act. And that's why they're beating us in too many cases on clean energy and other industrial concern."

Chinas's solar companies currently control two thirds of solar cell production in the $39 billion global PV market, the source reported.

German has depended on European Union discussions with China to win the trading arguments.