GHG emission factors for electricity have remained relatively constant in South Africa over the last few years as shown in the table below:
|2007/2008||1.00 kgs CO2/kWh||Eskom 2009 Annual Report|
|2008/2009||1.03 kgs CO2/kWh||Eskom 2009 Annual Report|
|2009/2010||1.03 kgs CO2/kWh||Eskom 2010 Integrated Report|
|2010/2011||0.99 kgs CO2/kWh||Eskom 2011 Integrated Report|
Organisations wishing to calculate the GHG impact of their electricity use can use these emission factors to do the following simple calculation: kWh * Emission Factor = CO2 emitted.
For example: 1,000 kWh * 0.99 kgs CO2/kWh = 990 kgs CO2
The process of generating electricity in South Africa is GHG inefficient because of the high reliance on coal powered plants. As a result, GHG emissions resulting from electricity generation in South Africa are generally higher than GHG emissions from electricity generation in other countries.
The change in emission factor in 2010/2011 is due to the fact that Eskom has decided to report on the factor for electricity generated instead of electricity sold which was done previously.