EnvironmentAnalysis: To tackle climate change, China must overhaul its vast power grid Muyu XuJohn Geddie 7 minute read Power lines and wind turbines are pictured at a wind and solar energy storage and transmission power station of State Grid Corporation of China, in Zhangjiakou of Hebei province, China, March 18, 2016. REUTERS/Jason Lee One of the most pressing challenges for China to meet its pledge to cap carbon emissions this decade and pivot toward renewables is overhauling its electricity grid, the world's largest, officials and analysts say. Beijing's surprise announcement last year that it would hit peak emissions by 2030 and become carbon neutral by 2060 could presage the biggest reduction in projected global warming of any climate commitment to date, researchers say.