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Existing studies on the evaluation of CO₂ emissions due to electricity consumption in China are inaccurate and incomplete. This study uses a network approach to calculate CO₂ emissions of purchased electricity in Chinese provinces. The CO₂ emission factors of purchased electricity range from 265 g/kWh in Sichuan to 947 g/kWh in Inner Mongolia. We find that emission factors of purchased electricity in many provinces are quite different from the emission factors of electricity generation. This indicates the importance of the network approach in accurately reflecting embodied emissions. We also observe substantial variations of emissions factors of purchased electricity within subnational grids: the provincial emission factors deviate from the corresponding subnational-grid averages from −58% to 44%. This implies that using subnational-grid averages as required by Chinese government agencies can be quite …