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Building: energy and environment

Almost 55% of energy consumption in buildings in Portugal is coming from the electricity consumption. In the rest of Europe this value is around 32%. Air conditioning needs are responsible of a significant proportion of this consumption.

According to the DGEG (Direção-Geral de Energia e Geologia) 50% of the energy consumption allocated to the buildings sector could be divided by 2. As a consequence, we could avoid 400 thousand tons of CO2 per year.

Energy performance of buildings in Portugal

Between 2014 and 2019 the majority of certified residential dwellings in Portugal have a D energy class. Only 25.7% obtained a classification between A+ and B-. 

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As a comparison, France is in the same situation. Indeed the majority of residential buildings (apartments, houses, collective housing) have a D-class. Only 21.9% have an energy class between A and B.

Electricity consumption in Portugal

In 2017, each Portuguese person consumed nearly 3.3 kWh of electricity per day (source: INE) and spent an average of €56.80 per month on electricity (source: ADENE 2017 survey).

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Which European households consumed the most electricity in 2014?

For comparison, here are the 2014 data for other European countries:

Finland: 10.7 kWh/day/inhabitant

Sweden: 10.4 kWh/day/inhabitant

France: 6.3 kWh/day/inhabitant

Portugal: 3.13 kWh/day/inhabitant

Romania: 1.6 kWh/day/inhabitant

An opportunity for eco-friendly building in Portugal

These elements on the energy performance of buildings show the possible optimisation of buildings in Portugal.

Optimizations that will have an impact on the quality of life in the home, apartment or even office, but above all, that can have significant financial repercussions since energy consumption (electrical or other) can be drastically reduced with this energy optimization.