Reduced energy use in single- and two-dwelling buildings thanks to a warmer 2011
During 2011, the average single- and two-dwelling building used on average 117 kWh per square metre for space heating and hot water, which is a decrease of 10 kWh compared with 2010. This is apparent from new statistics published by the Swedish Energy Agency.
A total of 33 TWh was used for heating and hot water in single and two-dwelling buildings (referred to in this press release simply as houses) in 2011, which is a decrease of TWh compared with 2010. The decrease depends to a large extent on the fact that 2011 was a warmer year than 2010. The statistics do not include the energy extracted with the aid of heat pumps.
An average of 17 300 kWh was used for heating and hot water in houses in 2011, and the energy consumption was 117 kWh per square metre. This can be compared with 2010 when 18 600 kWh was used per house and 127 kWh per square metre.
90 per cent decrease in oil used for heating purposes over a period of 10 years
Oil-fired central heating continues to decrease. Only 12,000, or less than 1 per cent, of houses were heated solely by oil during 2011. Since 2007, the use of oil for space heating purposes has decreased by 65 per cent (from 2.6 TWh to 0.9 TWh). Since 2002, it has decreased from 9 TWh or by 90 per cent.
"It is gratifying to learn that oil-fired central heating has decreased by as much as 90 per cent over the past 10 years. And since major savings can be made by converting to an alternative heating method, the decrease is likely to continue. It means decreased carbon dioxide emissions form our Swedish houses," says Lars Nilsson, Analyst at the Swedish Energy Agency.
Heat pumps installed in many houses
Almost half the single- and two-dwelling buildings in the country, 923 000 in all, are estimated to be equipped with some type of heat pump, the most popular of which being air heat pumps. In 2007, the number of houses with heat pumps was estimated to be 658,000, which entails an increase of 40 per cent in 5 years.
About the statistics
In 2011, an estimated 1,912,000 houses were included in the investigated population.
In brief, the population can be stated to be composed of the following types of houses:
- detached one- and two-family buildings
- terrace and linked houses
- year-round dwellings with non-residential premises
- houses on agricultural property
- buildings used as permanent residences.
The statistics are based on a sample survey that addresses some 7,000 owners of single- and two-dwelling buildings. The response frequency for the survey was 61 per cent. The purpose of the statistics is to provide information on the method of heating used, on the energy used and on how the areas are used in the present stock of multi-dwelling buildings and non-residential premises. The statistics serve as a basis for, among other aspects, energy balances, national accounts and reporting to Eurostat. Both surveys have been conducted since 1977.
The statistics have been drawn up by Statisticon on behalf of the Swedish Energy Agency.