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Definition

Energy efficiency seeks to obtain the same energy goods and services whilst using less resources and extending the useful life. Being efficient implies offering the same and better quality, whilst contaminating less. Is this an impossible challenge?

Savings, Renewable Energy and Efficiency

Energy efficiency is not an illusion. It is a reality that is sometimes overlooked. Perhaps this is due to the fact that the measures promoting it tend to go hand in hand with policies to reduce atmospheric emissions and foster renewable energy, two objectives that are much better known. However, energy efficiency is on an equal footing. This is reflected in the 20.20-20 Directive, through which the European Union aims to reduce carbon dioxide emissions by 20%; ensure that 20% of Europe’s energy comes from renewable sources and finally, increase efficiency levels by 20% by the end of 2020.

Fields of Application

In developed countries, the industrial sector has taken the lead, adopting new systems that significantly improve the efficiency of their production processes. Transport, agriculture and public lighting are other fields that are beginning to work under these terms. You can also do your bit at home: buildings can be more efficient, both inside and outside.

Efficient Homes

Efficiency at home begins with the outside of the building: façades, roofs, partitions, floors or windows are essential in order to avoid excessive heat loss or failure to make the most of natural light. Use of appropriate materials and adapting construction to bioclimatic criteria are the two keys to saving energy at home without relinquishing comfort.

If you are planning to purchase a newly built property, don’t forget to ask for the energy certificate in order to take an informed decision. This document will provide details on your energy supply systems and the property’s construction characteristics.

Energy Renovation

However, the problem of household energy efficiency lies in homes that have already been built. More than half of the homes in Spain are over 30 years old, and of these, 50% were built more than 50 years ago.  According to experts, this is where there is the most room for improvement. Minor actions can multiply the efficiency of these homes.  For example, installing PVC windows or double glazing; or replacing a coal boiler with more efficient systems, such as cogeneration. At times, some simple adhesive tapes are enough.

Global action throughout the home can improve your energy efficiency by 30% and you will immediately see the difference in your electricity bill.

Efficiency at Home

Having looked at the construction side, efficiency in the rest of your household consumption is much easier.  In reality, it is a question of making an informed choice. For this purpose, the energy label makes it easy. Manufacturers of domestic appliances are required to incorporate this certificate which classifies the efficiency of the appliance from G to A, which is the most efficient. Appliances such as fridges have gone one step further, offering models with an A+ and A++ rating.

Did you know that…

The increased cost of efficient appliances is recovered in the medium term. Comparing the cost of a G rating appliance with a Class A appliance, you will save 800 euros over its useful life if you go for the more efficient option.  

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