Step 1: Carbon emission per 100 kilometers of fuel vehicle=carbon emission coefficient of gasoline combustion × Weight of 92 # gasoline per liter × Average energy consumption of fuel vehicles
=2.925KgCO2/Kg × 0.75Kg/L × 9L/100km
=19.75KgCO2/100km
Step 2: Carbon emission per 100 kilometers of charging=carbon emission factor for electric energy of East China regional power grid released in 2019 × Average energy consumption of electric vehicles
=0.5896KgCO2/kwg × 14kwh/100km
=8.25KgCO2/100km
Step 3: Electric vehicle emission reduction per 100 kilometers=fuel vehicle carbon emission per 100 kilometers - charging carbon emission per 100 kilometers
=19.75KgCO2/100km-8.25KgCO2/100km
=11.5KgCO2/100km
Step 4: Corresponding emission reduction per unit of charge=emission reduction per 100 kilometers of electric vehicle driving ÷ average energy consumption of electric vehicle
=11.5KgCO2/100km÷14kwh/100km
=0.8214KgCO2/kwh
Relevant parameters: (according to the documented CCER methodology and relevant standards)
1. Average energy consumption parameters for fuel vehicles and electric vehicles - Based on various vehicle sales data from the China Association of Automobile Manufacturers and the Ministry of Industry and Information Technology's vehicle energy consumption per unit mileage data, the weighted average of the top 50% of car brands in sales in the past three years was obtained. Published in the "Announcement of Road Motor Vehicle Manufacturers and Products".
2. Gasoline combustion emission coefficient, weight of 92 # gasoline per liter - international standard.
3. The carbon emission factor for electric energy in the East China regional power grid released in 2019 - based on the marginal emission factor for electric energy in the East China region of 0.7921KgCO2 recorded by CCER, and the marginal emission factor for capacity of 0.3870KgCO2, each obtained on a 50% weighted average.