What are the CO2 emissions emitted per kWh by different fuels?
The official Defra data for kg CO2 per kWh for different fuels is: Average grid electricity: 0.537 Long term marginal grid factor: 0.43 Natural Gas: 0.185 Domestic heating oil: 0.25 LPG: 0.21 The figure for electricity has fallen – it was 0.80 in 1990. Please note thatthese figures are updated each year by Defra. Source: Defras greenhouse gas (GHG) conversion factors for company reporting For energy related emissions, the protocol is based on the product of energy consumption and CO2 emission factors. This approach can be used for determination of the project baseline and the forecast of annual emissions. The calculation of CO2 emissions is simply: CO2 emissions (tonnes) = Energy consumption (kWh) x Fuel emission factor (kgCO2/kWh) x 0.001 The emission factors for a range of different fuels are given in Table 1. In the case of electricity consumption it is in most cases impossible to identify with any certainty the source of generation that has been reduced or displaced. For this reaso
