SUMMARY
This study is a part of a project, called "Energy intensity of lifestyles". The target of this project is to get a view on the cumulative energy requirement of primary energy carriers for several lifestyles in the Netherlands.
In this study the energy requirement of houses is analyzed. Also is described how the energy requirement of the house is coupled with the households of the Netherlands Household Expenditure Survey.
Before one can discuss ways of reducing the energy demand of households, one needs to have quantitative information concerning the cumulative (i.e. direct and indirect) energy requirement of households. To make an overview, the energy intensities (in MJ/DFl.) of about 350 consumption categories (which cover together the total Dutch consumption package) are determined with a hybrid energy analyzing method. The used hybrid energy analyzing method combines process analysis and input-output analysis. To calculate the energy requirement of the average Dutch household the 350 energy intensities are combined with data of the Netherlands Household Expenditure Survey of 1990, which contains the spendings of 2767 representative households in the Netherlands. The energy intensities of all the 350 consumption categories are justified in four studies. This study is one of these four studies.
In this study first three reference houses are analyzed for their primary energy requirement during the complete life cycle. For this three reference houses the energy requirement is calculated to be 127, 103 and 85 MJ per m2 per year for respectively a detached house, row house and flat. The total energy requirement for the complete life cycle is calculated to be respectively 669, 543 and 454 GJ. The results of the in this study calculated energy requirements are comparable with the calculated energy requirements from other studies.
The yearly energy requirement for one house can be calculated with a in this study generated formula. The yearly energy requirement for the house can be calculated by multiplying the total surface with the yearly energy requirement per m2. The surface of the living room and kitchen and the total amount of rooms are known from the Netherlands Household Expenditure Survey of 1990.
The total surface of the houses in the Netherlands Household Expenditure Survey varies from 16 to 147 m2, with an average of 70 m2. The total energy requirement of the average dutch house amounts 8.8 GJ per year, varying from 2.4 to 22.5 GJ per year. The house rent (average: DFl. 7,330 per year) has an average energy intensity of 1.2 MJ/DFl, which varies from 0.01 to 12 MJ/DFl.