Energy efficiency of homes Implementation and need for energy efficiency improvements

Households depending on need and implementation of energy efficiency improvements in their home or building in the last five years by year the house was built and income quintile per unit of consumption

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	Implementation of energy efficiency improvements in households
Year of construction Income quintile per unit of consumption	.	.	.
	.	.	.
	.	.	.

Notes
- 1) The year of construction or completion of the last major renovation of the home is considered.
  2) Homes built in 2022 or later are included in the category No ha hecho mejoras y no las necesita.
  3) Improvements in thermal insulation (such as window replacement or façade renovations) or in the heating system of the home or building are considered energy efficiency improvements.
  4) Income per unit of household consumption is calculated to take into account economies of scale within households. It is obtained by dividing the total household income by the number of consumption units in the household, whose value is obtained by adding the weights of the modified OECD scale, which gives a weight of 1 to an adult household member, a weight of 0.5 to other household members aged 14 and over, and a weight of 0.3 to children under 14. Once the income per unit of consumption has been calculated, it is assigned to each member of the household. For the calculation of quintiles, the distribution of persons is taken.

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