Energy efficiency certificates results after 12,000 m2 audited by keelwit technology

Energy efficiency certificates results after 12,000 m2 audited by keelwit technology

KeelWit Technology has made its own statistics about the results obtained after auditing the energy efficiency of 12,000 m2 of homes and office buildings since Energy Efficiency Certificates became compulsory in Spain in June 2013 for any property sale or rental.

The vast majority of buildings audited (87.8% as shown in attached pie chart) obtains an “E” level in a scale from “A” (representing an optimal energy efficiency) to “G” (meaning a building where a great part of the energy used for heating and cooling is wasted due to inappropriate building materials or old HVAC equipment). Only 7.8% of the audited buildings get a poor result such as “F” or “G”.

When this same analysis is performed with nationwide results obtained by all auditors, results are much worse, showing 35% of the buildings obtained “F” and “G” levels, as seen in the attached pie chart.

The main reason for this difference is that the biggest part of KeelWit’s audits has been performed in high standard private homes and office buildings of recent construction, belonging to Promora, a real estate agency specialized in the sale and rent of luxury homes, chalets, townhouses, office buildings and mansions in the capital city’s most coveted neighborhoods.

When both charts are compared we can easily understand the need to carefully choose the house to rent or buy as well as the need to gradually improve the energy efficiency of existing buildings, especially due to their age when looking at the nationwide average.

There is a need to increase public knowledge of the relevance of energy efficiency results. In order to do so, regional governments try to explain to their citizens the usefulness of energy certificates through different strategies. Asociación de Ciencias Ambientales, a NGO developing different environmental projects in Spain, has recently presented a study on how this duty is fulfilled in each region. The study shows the urgent need for a simpler and more direct way of public diffusion of the benefits of introducing energy efficiency certificates in the real estate market, as it has only been perceived as an additional fee or tax to be paid.

KeelWit Technology foresaw this reaction and built a specific website, where you can find a simple, clear and organized FAQ list of the many doubts citizens have about energy certificates, their compulsory nature, their interest, their results, etc.

To read more on the report comparing Regional Governments strategies to inform the public about energy certificates, visit:

To learn more on the energy efficiency audits, visit:

If you wish to see Promora’s real estate offer:




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