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With a score of 159 points , State Power Investment Corporation is one of the five main power generation companies in mainland China . Founded in 2003 , it moved up in its rankings as a green company , from 11th place in 2017 to 10th in 2018 . Although it ’ s based in Beijing , China , according to the company website , SPIC has operations that span over 35 countries including Japan , India , and South Africa . SPIC provides a range of alternate energy including nuclear power , thermal power , hydro power , solar power , and wind power . According to EI New Energy , SPIC has a total output capacity of 126.2 GW . SEPTEMBER 2019