China aims for non-fossil fuels to account for about 20 percent of total energy consumption by 2030, increasing to more than half of demand by 2050, its state planner said on Tuesday, as Beijing continues its years-long shift away from coal power. In a policy document, the National Development and Reform Commission said carbon dioxide (CO2) emissions will peak by 2030 and total energy demand will be capped at 6 billion tons of standard coal equivalent by 2030. (Reporting by Josephine Mason; Editing by Christian Schmollinger)