Survey on Households and the Environment 
Classification by characteristics of the dwelling
Percentage of dwellings with thermal insulation or energy-saving lights, by size of the dwelling (no. of persons occupying it) and type of insulation or lighting
Units: % over the total number of dwellings

;With some type of thermal insulation;Canopies;Persian blinds or shutters;Tinted glass or solar protectors;Double glazing for windows;Thermal bridge breaking;With some type of energy-saving lights;Fluorescent tubes or lights;Other energy-saving lightbulbs;
TOTAL;96.2;23.0;94.0;4.1;39.3;11.4;85.5;66.1;67.1;
1-person dwelling;94.4;20.4;92.0;2.7;27.7;7.7;78.5;62.7;53.6;
2-person dwelling;96.1;21.8;94.2;4.2;38.0;11.3;84.3;65.1;63.8;
3-person dwelling;96.7;22.4;94.7;4.1;41.8;12.6;87.6;67.5;71.5;
Dwelling with 4 or more persons;96.8;26.2;94.5;4.8;45.4;12.8;89.3;68.2;75.0;
Notes:
Source: National Statistics Institute