Group 1 - The 2023 national average carbon dioxide emission factor for electricity is 0.5306 kgCO2/kWh, a decrease of 1.1% from 2022's 0.5366 kgCO2/kWh, attributed to the optimization of the power generation energy structure and a reduction in the proportion of thermal power generation [1][5] - The average carbon dioxide emission factors for electricity in 2023 for various regions are as follows: North China 0.6361 kgCO2/kWh (down 6.1%), Northeast 0.5122 kgCO2/kWh (down 8.0%), East China 0.5500 kgCO2/kWh (down 2.1%), Central China 0.5271 kgCO2/kWh (down 2.3%), and Northwest 0.5543 kgCO2/kWh (down 5.4%), mainly due to the decrease in the proportion of thermal power generation [2][5] - In contrast, the Southern and Southwestern regions have average carbon dioxide emission factors of 0.4042 kgCO2/kWh (up 4.5%) and 0.2472 kgCO2/kWh (up 9.0%), respectively, due to reduced hydropower output from lower rainfall, leading to an increased share of thermal power generation [2][5] Group 2 - At the provincial level, 20 provinces, including Beijing, show a downward trend in the average carbon dioxide emission factor for electricity in 2023 compared to 2022, influenced by a decrease in thermal power generation and an increase in the proportion of clean energy imported from other provinces [3][6] - Conversely, 10 provinces, including Guangdong, have seen an increase in their average carbon dioxide emission factors due to a decline in hydropower generation and an increase in thermal power generation [3][6] - The national average carbon dioxide emission factor for electricity, excluding market-based non-fossil energy, is 0.6096 kgCO2/kWh, an increase of 4.1% from 2022's 0.5856 kgCO2/kWh, primarily due to the growth of market-based non-fossil energy transactions [3][6] Group 3 - The national fossil energy electricity carbon dioxide emission factor is 0.8273 kgCO2/kWh, a decrease of 0.6% from 2022's 0.8325 kgCO2/kWh, mainly due to a reduction in the proportion of coal-fired power generation and a decrease in the carbon content of coal used in thermal power generation [3][6] - Overall, the changes in the carbon dioxide emission factors for electricity in 2023 reflect the actual achievements of China's clean and low-carbon transition in the power industry [7] - The country plans to continue improving the calculation methods for carbon dioxide emission factors and strengthen the analysis of measured parameters to support the establishment of a unified and standardized carbon emission statistical accounting system [7]

近日，生态环境部与国家统计局联合印发《关于发布2023年电力二氧化碳排放因子的公告》（以下简称 《公告》），公布了2023年电力二氧化碳排放因子，以便于不同主体核算电力消费的二氧化碳排放量。 生态环境部应对气候变化司有关负责人表示，整体来看，2023年电力二氧化碳排放因子的变化客观反映 了我国电力行业清洁低碳转型发展的实际成效。 省级层面，北京等20个省份2023年电力平均二氧化碳排放因子相较2022年呈现下降趋势，主要与火力发 电量比重下降、发电煤耗降低、外省清洁能源调入电量比例上升等因素有关。广东等10个省份2023年电 力平均二氧化碳排放因子有所上升，主要与水力发电量占比下降、火力发电量占比上升、外省清洁能源 调入电量比例下降等因素有关。 2023年全国电力平均二氧化碳排放因子（不包括市场化交易的非化石能源电量）为0.6096千克二氧化 碳/千瓦时，较2022年上升4.1%，主要是由于我国市场化交易的非化石能源电量（如绿色电力交易电 量）在不断增长，而扣除了上述电量后的剩余发电量在相应减少，进而推高该因子的数值。 2023年全国化石能源电力二氧化碳排放因子为0.8273千克二氧化碳/千瓦时，较2022年 ...