Learn

Are there any special requirements for public buildings?

Yes. Public buildings require an energy performance certificate not older than 10 years old and the certificate shall be visible to the public in these buildings. Specifically, Article 7.3 of the Directive states that: "Member States shall...

Which buildings are exempted from energy performance certification?

Member States may exclude the following types of buildings from certification (Article 4):"buildings and monuments officially protected as part of a designated environment or because of their special architectural or historic merit, where...

What type of buildings is subject to energy performance certification?

All buildings which are constructed, rented or sold out require an energy performance certificate (Article 7(1)). The production of a certificate does not generally depend on the type or size of the building. Furthermore Member States...

How do European Standards fit in with the fact that the Directive allows a certain national discretion in the approach?

 A number of European Standards are being developed in parallel with the implementation of the Directive(see also Information Paper P02). Unless national legislation demands it, they are not mandatory. However, when agreed, they should...

Will the Directive be applied in the same way everywhere?

Member States have discretion in how they implement the Directive as long as they satisfy its requirements. Depending on their legal and building control systems together with their existing infrastructure and practices, different...

Can you explain the difference between an Asset Rating and an Operational Rating?

An "Asset" Rating is: a calculated rating based on standard weather and building use similar in principle to "typical use" consumption figures for cars useful when comparing two buildings with different users, i.e. provides like-for-like...

What is the purpose of Energy Performance Certificates?

They serve two purposes: 1. Purchasers and renters of buildings will be able to compare the energy performance of different buildings before signing. While Energy Performance Regulations require minimum standards, performance ratings will...

Can you tell me more about the Energy Performance Certificates?

Key aspects of the Certificates include (see also article 7 of the EPBD): They shall be available when buildings are constructed, sold or rented out - so they are applicable to existing buildings as well as new ones. They should be...

What are the main requirements of the EPBD in simple terms?

This Directive lays down requirements as regards (see article 1 of EPBD):  (a)   the general framework for calculation methodology the integrated energy performance of buildings, i.e. there must be in each Member State one or more...

How much can this Directive reduce the threat of climate change?

According to the European Climate Change Programme, the Directive could deliver a reduction of up to 45 million tonnes of carbon dioxide by 2010. In order to meet the agreed Kyoto targets, the European Union must implement reductions of...

Why was the Directive introduced?

The 160 million buildings in the EU use over 40% of Europe's energy and create over 40% of its carbon dioxide emissions, and this proportion is increasing. Under the Kyoto protocol, Europe is committed to reducing emissions and the...

Why not one CEN standard covering all EPBD aspects?

There are several reasons why there is not just one CEN standard covering all EPBD aspects. The two main reasons are: 1. The CEN standards cover different types, with different application areas and different target groups, ranging from...

Are CEN standards only available in English?

It is a fact that in general most of the preparatory work in the Technical Committees and working groups in CEN is in English. The underlying documentation and the preliminary drafts are in English. When publishing a draft standard (prEN...

Why should we use a simplified method for the calculation of the energy need and use of buildings?

In particular in the context of building regulations it is essential that a prescribed method is verifiable and legally secure and that there is consensus on the procedures. Therefore, transparency, robustness and reproducibility are...

Why are the symbols in some of the EN ISO not always the same as in the CEN standards to support the EPBD?

For instance: in EN ISO 13789 the subscripts for transmission and ventilation are T and V in ISO and tr and ve in CEN. There may be two reasons: 1) because the EN ISO standard was already published before the common symbols were agreed...

Are the common definitions given in CEN/TR 15615 mandatory?

CEN/TR 15615 is not a standard, but a technical report and therefore the definitions (annex C) are not mandatory. However, most of the definitions are adopted also in the European standard EN 15603, which is one of the key standards in the...

Why is standardization at EU level so important?

Today most companies (consultants, manufacturers and contractors) work internationally. From their point of view it is preferable to have internationally accepted calculation methods and input data for the energy efficiency of buildings...

What are the future prospects for the status of the CEN standards?

We expect a further harmonization in the near future. In particular when feedback from the Member States and other target groups has lead to recommendations for improvement of the CEN standards and when these recommendations have been...

Why isn’t it possible to download the CEN standards from a website (e.g. www.iee-cense.eu)?

Standards are copyright protected property of the publisher (CEN , ISO etc.) and not part of the public domain. Question submitted by: Dick van Dijk (TNO, The Netherlands) Anwered by: Dick van Dijk, TNO and Jaap Hogeling, ISSO (The...

What to do if I have questions about the use or technical content of a CEN standard to support the EPBD?

In general questions on standards could be answered by the National Standard Body helpdesk. They may also refer you to their national experts who have been involved in the preparation of the standard on a national or international level....