Impact of energy efficiency measures on the CO2 emissions in the residential sector, a large scale analysis

Like all industrialised countries, Belgium accepted to diminish its greenhouse gas emissions in the frame of the Kyoto agreement. On top of the list figures CO2. A major emission source for CO2 is burning fossil fuels. As the residential sector accounts for 28% of the country’s annual energy consumption and as this consumption mainly concerns fossil fuels, it has an equally important share in the CO2 release. Hence, at first sight, the best policy for a decrease is by improving the energy efficiency. The question to be solved, however, is which improvement could generate the reduction needed?