According to CO2 emission, China is the leader of the list of countries. Last year, have more than doubled production of solar energy, and so the largest polluter has become the largest producer of solar energy in the world. The production has grown to 77.42 GW at the end of last year. When looking to the number of inhabitants compared to other countries, the ratio is not equal. 110 gigawatts of solar energy plan to add up to 2020.