Experts say Spain must rehabilitate more than 80% of its housing stock

All buildings in the European Union must emit zero emissions and comply with climate neutrality from 2050

GTRES

28 November 2024, 9:00

The new European Directive on Energy Performance in Buildings (EPBD) calls on EU member states to reform their entire property stock by 2050, by which time all buildings must be zero-emission and comply with climate neutrality.

Spain presents a unique challenge, as more than 80% of its housing stock does not meet these standards and will need to undergo renovation over the next 25 years to align with the climate measures set out by Europe.

Given this exceptional situation, experts gathered at the 16th Spanish Passivhaus Conference (16CEPH) have proposed measures and solutions to improve energy efficiency and achieve better energy performance ratings.

Expert recommendations

Firstly, experts recommend reducing a building's energy demand by implementing various passive measures, such as improving insulation and enhancing the building's air tightness. They also suggest installing efficient heating, ventilation and air-conditioning (HVAC) technologies that require less power to achieve their intended results, such as multifunctional heat pumps instead of traditional boilers.

Once energy demand has been reduced, they propose incorporating renewable energy self-generation systems, such as photovoltaic panels. These not only help decarbonise consumption but also reduce electricity bills and provide greater thermal comfort compared to traditional methods.

After the building has implemented all necessary measures, it can be awarded the "Passivhaus" certificate, which recognises properties – homes, offices, shops or other establishments – that achieve zero emissions and comply with climate neutrality.

Spain's situation compared to other countries

This standard already boasts nearly 500 certified projects in Spain, equivalent to more than 400,000 m² of renovated space, positioning Spain as the third country in the world with the most recognised certifications.

Data released during the 16th CEPH indicate that around 35 million buildings across Europe will need to be renovated, with Spain being particularly affected due to having the highest number of residents living in blocks of flats and apartments.

Given this, the rehabilitation of residential buildings is crucial for the country’s future. This process can be undertaken collectively by all residents of a building, but it is also possible to renovate and certify individual properties that meet environmental criteria within a shared building.