计及绿电扣除的剩余电力碳排放因子计算

Calculation of Residual Mixed Factor Considering Green Electricity Deduction

中文关键词: 剩余混合因子  平均电力碳排放因子  绿电扣除  碳排放核算

英文关键词: residual mixed factor (RMF)  average emission factor (AEF)  green electricity deduction  carbon emission accounting

中文摘要:

      随着电能在终端能源消费中占比的提升，电力碳排放核算对企业节能降碳愈发关键。目前国内剩余混合因子（RMF）尚未实现电网区域和省级层面的计算，难以精准反映绿电价值。本文提出计及绿电扣除的省级RMF计算方法，在计算中扣除省间输送电量和省内发电量中的绿电电量；同时完善省级平均电力碳排放因子（AEF）计算方法，揭示了RMF与AEF呈线性关系，两者系数等于区域用电量中剩余电量的占比。利用 2021 - 2023 年电力数据验证，结果表明该方法能有效反映绿电对受入省份的减碳作用。未来将考虑电网网损及所有市场化交易电量扣除对计算方法的影响，进一步完善基于市场的企业电力碳排放核算方法。

英文摘要:

      With the increase in the proportion of electricity in terminal energy consumption, the accounting of electricity carbon emissions is becoming more crucial for enterprises to save energy and reduce carbon emissions. At present, the calculation of the residual mixed factor (RMF) in China has not been realized at the grid - region and provincial levels, making it difficult to accurately reflect the value of green electricity. This paper proposes a calculation method for provincial RMF considering the deduction of green electricity. Green electricity is deducted from the inter - provincial transmission and provincial - level power generation in the calculation. At the same time, the calculation method of the provincial average emission factor (AEF) is improved, revealing a linear relationship between RMF and AEF, where the coefficient between the two is equal to the proportion of residual electricity in regional electricity consumption. The verification using the electricity data from 2021 to 2023 shows that this method can effectively reflect the carbon - reducing effect of green electricity on the receiving provinces. In the future, the impacts of grid losses and the deduction of all market - based electricity transactions on the calculation method will be considered to further improve the market - based enterprise electricity carbon emission accounting method.