In 2009, China announced a goal to reduce its carbon dioxide intensity (CO2/unit of gross domestic product) by 40-45% by 2020 from the 2005 level. In 2011, China established a goal of reducing its CO2 intensity by 17% during the 12th Five-Year Plan period (2011-2015). Five provinces and eight cities have been selected to pilot low-carbon activities and are required to establish local-level emissions inventories.
The industrial sector dominates the country's energy-related CO2 emissions, using two thirds of the total energy consumption. A better understanding of China's industrial energy use and CO2 emissions at the sub-sectoral and provincial levels can assist researchers and decision-makers in identifying the largest areas of energy-saving and emission-reduction potential. However, previous studies have largely focused on China's energy use and CO2 emissions at an aggregated level. Based on publicly-available information, this paper estimates industrial energy-related CO2 emissions for each manufacturing subsector at the national level and in twelve provinces, including: Chongqing, Guangdong, Hebei, Henan, Jiangsu, Liaoning, Shaanxi, Shandong, Shanghai, Shanxi, Sichuan, and Xinjiang.
This paper first explains data availability issues and discusses the methodology as well as conversion factors used for the CO2 emissions calculations. This paper then presents the results of the calculation of the carbon intensity of fuel and electricity for each manufacturing subsector and identifies the largest CO2-emitting sub-sectors in the selected provinces. In addition, three provinces are highlighted, illustrating that economic and energy structure play an important role in the industrial CO2 emissions within provinces. Finally, this paper discusses how to further improve carbon inventories at the subsectoral level and summarizes the findings of this study in light of China's current domestic carbon inventory efforts.