In 2020, 84.33% of Chinese primary energy consumption relied on fossil fuels, and 56.56% of it relied on coal, down from 70% in 2011. These energy production processes generated approximately 9.9 billion tonnes of CO2, up from 8.1 billion tonnes in 2010 and accounting for 30.9% of global emissions. In 2021, China produced 7.727% of its energy from hydroelectric, 2.32% from nuclear, and 7.141% from other renewable energy sources, from 2.25%, 8.468%, 5.77%, relatively, in 2020. By 2023, the total non-fossil electricity installed capacity was over 50% of the total capacity installed in the country. Chinese energy experts estimate that by 2050 the share of electricity from coal will decline to 30%–50%, and that the remaining 50%–70% will come from a combination of oil, natural gas, and renewable energy sources, including
hydropower, nuclear power, biomass, solar energy, wind energy, and other renewable energy sources. According to a study by the Energy Research Institute of the
National Development and Reform Commission on the economic circumstances of China's crude oil and
chemical industry as of 2007, China has wasted an average of 400 million tons carbon equivalents annually. In 2020, China consumed 4.98 gigatons coal equivalents, up from 2.46 in 2006. According to Dai Yande, the chairman of the Energy Research Institute of the NDRC, while continued high consumption of energy is unavoidable, China must take steps to change the form of its economic growth and increase substantially the
energy efficiency of industry and society. Among other things, China should find new points of
economic development that move it away from being the "World's Factory" and improves energy efficiency. It also must avoid unnecessary waste, foster a sustainable economy and encourage renewable energy to reduce its reliance on
petrochemical energy resources. This rapid development to build coal to oil projects prompted concerns about wasteful development and
unintended consequences; these include wasteful extraction of coal, excessive water use (this process requires 10 tons of water for every ton of oil produced), and likely increases in coal prices. By importing electricity China not only reduced its dependence on imported crude oil, but also enhanced energy security by diversifying its foreign energy sources, making China less vulnerable to disruptions in supply. == Challenges ==