Whenever power is saved, less fuel is burned or processed and fewer pollutants are emitted. These emissions invariably include Carbon Oxides, Nitrogen Oxides, Particulates, and Sulphur Oxides, all of which have effects in various situations. In the case of electricity consumption, emission reductions take place at the power station. Increased energy efficiency therefore means either a cleaner environment in the vicinity of the plant or reductions from power stations. By reducing the kWh consumption, this will in turn reduce emissions that are produced when electricity is generated at Eskom power stations. One can outline the environmental impact that the energy efficiency project will have on the environment as shown on the table above. You can calculate the reduction in emissions by using the values for amount of emissions produced/kWh generated.
Carbon Dioxide (CO2) is considered a greenhouse gas and is a major contributor to global warming.
Sulphur Dioxide (SO2) has some major health effects and the effects associated with this pollutant are asthma, respiratory illness and aggravation of existing cardiovascular disease.
Nitrogen Oxides (NO2) are considered contributors to acid rain and ground level ozone (or smog).