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Information - CommunicationDirectorate general for Energy and Transport

European Commission

“Repensar l’Energia”

La CertificacióEnergéticad’Edificis

Mariàngels Pérez Latorre

Col.legi d’Arquitectes de Catalunya

Barcelona, 14 Novembre 2005


European Commission

• Part I EU Energy Performance of Buildings Directive: requirements and latest developments

• Part IIIntelligent Energy-Europe ProgrammeBuildings Sector – Contracted Projects

• Part IIIThe Energy Certification of Berlaymont 2005 – Summary of projects results

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European Commission

Part I

EU Energy Performance of Buildings Directive:

requirements and latest developments

Mariàngels Pérez Latorre

Col.legi d’Arquitectes de CatalunyaBarcelona, 14 Novembre 2005


The EU needs to promote energy savings

Improving the energy Improving the energy performance in buildings: why ?performance in buildings: why ?

Impact of action on energy use in buildings

Largest end-user : 40% of energy is used in the residential/ tertiary sectorsLarge energy savings potential in the building sector: 22% by 2010

Three main reasons.

Security of supply

External energy dependence 70% in 2030 if no measures taken

Energy production and use create 94% of CO2 emissions

Environment

The EU can promote savings in energy use

Limited influence on supply

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The DirectiveThe DirectiveObjectives

Methodology for integrated buildings energy performance standards

Application of these standards on new and existing buildings

Certification schemes for all buildings

Promoting the improvement of energy performance of buildings within the EU through cost-effective measuresConvergence of building standards towards those of Member States which already have ambitious levels

The measures

Inspection & assessment of boilers/heating and cooling installations


Methodology for integrated Methodology for integrated energy performance of buildingsenergy performance of buildings

A common methodology for integrated minimum standards

integrate insulation, heating, cooling, ventilation, lighting, renewable energy installations, passive systems, CHP, DH/C, position and orientation of the buildinggive flexibility to designers to meet energy reduction standards in the most cost-effective way can be expressed in simple energy indicatorsare adopted by Member States for different categories of buildings taking into account climatic differences

The standards:

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Minimum standards for all Minimum standards for all buildingsbuildings

New buildings

Existing buildings

Application of the minimum energy performance standards to all new buildings

Consider the feasibility of renewable energy, CHP, etc for all new buildings over 1000 m²

Application of the minimum energy performance standards to existing buildings greater than 1000 m² when the buildings undergo larger renovations


Certification schemes for all Certification schemes for all buildingsbuildings

Why?To facilitate the transfer of clear and reliable information on the energy performance of buildingsTo make energy efficiency more attractive

How?Energy performance certificates for new and existing buildings should be available when they are constructed, sold or rented outThe certificates should:

•not be more than 10 years old•be accompanied with advice on how to improve the energy performance•be displayed in large public buildings and institutions (over 1000m2).

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Inspection and assessment of Inspection and assessment of heating & cooling installationsheating & cooling installations

Heating systemsInspected regularly boilers with an effective rated output between 20 kW and 100 kWInspected every 2 years: boilers with an effective rated output over 100 kWBoilers larger than 20 kW and older than 15 years: the entire heating installations should be inspected. Advice should be given on alternative solutions which could reduce energy consumption

Cooling systems

Regular inspection of air-conditioning systems with an output of more than 12kW, including room systems used together.


Implementation TimetableImplementation Timetable

• Final adoption by European 16 Dec 2002Parliament and Council of Ministers

• Entry into force 4 Jan 2003

• Deadline for implementation 4 Jan 2006•Laws, •Regulations•Administrative procedures•Training, etc (+ 3 years…)

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National ActivityNational Activity

In principle, the following are left to Member States or regions:

- details of methodology (based on technical annex; taking account of existing and draft European standards)

- setting of minimum energy requirements

- details and format of certification systems

- details of boiler/AC inspection/assessmentschemes


Current EU ActivityCurrent EU Activity

Energy Demand Management Committee

• update Technical Annex (qualified majority)• evaluate Directive and make proposals (advisory)• exchange of experience and information (voluntary)

• Building a European network - Buildings Platform (2005)

• MS working together: helping each other - Concerted Action (2004)

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Standardisation workStandardisation work

• Industry and Member States support harmonisation of methodology using existing and new European Norms

• Support for European guidelines on energy performance certification protocol and format and on inspection of heating/cooling

• Why – increase the accessibility, transparency and objectivity of the energy performance assessment

• Also to reduce costs for MS while ensuring flexibility for national and regional differentiation.


CEN standardsCEN standards

•CEN will deliver approximately 30 standards and an Umbrella Report, outlining the calculation procedure for assessing the energy performance of new and existing buildings. • Challenge to strike the right balance between requirements and guidelines. For example, include operational and asset rating.

Key Dates

• End of 2004 – prEN drafts ready • Early 2005 - full consultation launched • By end of 2007 – Agreement on ENs (stage 64)

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European Commission

Part II

Intelligent Energy-EuropeProgramme

Buildings Sector

Contracted ProjectsOctober 2005


European Commission

Projects contracted: 16

Fields:

• Certification

• Procedures

• Boilers & air conditioning

• Training

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European Commission1 - BUDI - Grazer Energie agentur (AU) - Pilot actions to develop a functioning market for

energy performance certificates2 - ENPER EXISTCS – TB (FR) - Applying the EPBD to improve the Energy

Performance Requirements to Existing buildings3 - IMPACT - Ecofys b.v. (NL) - Improving energy Performance Assessments and

Certification schemes by Tests4 - STABLE - Motiva Oy (FI) - Securing The Take-off of Building Energy Certification:

Improving Market Attractiveness through Building Owner Involvement5 - E-Tool - Naturgas MIdt-Nord, (DK) - Energy-toolset for improving the energy

performance of existing buildings6 - EPA-NR - EBM-consult (NL) - Energy Performance Assessment for Existing Non

Residential Buildings.7 - AUDITAC - Ass. pour la R&D des méthodes & processus industriels (FR) - Field

benchmarking and Market development for Audit methods in Air Conditioning8 - TOWARDS CLASS A – Energie-Cités (FR) - Towards Class A – Municipal buildings as

shining examples


European Commission9 - EPLABEL - Energy for Sustainable Development (UK) - A programme to deliver

energy certificates for display in public buildings across Europe within a harmonising framework

10 - Vent Dis.course - Brunel University (UK) - Development of Distance Learning Vocational Training Material forthe Promotion of Best Practice Ventilation Energy Performance in Buildings

11 - EEBD - Technol. Educational Institute of Crete (GR) - Development of an interactive vocational Web training tool for the take-off of the EPBD

12 - EULEB - University of Dortmund (DE) - European High Quality and Low Energy Architecture

13 - PEP - ECN (NL) - Promotion of European Passive Houses14 – BESTFACADE - MCE Anlagenbau (AU) - Best practice for double skin facades15 - Passive-On - Politecnico di Milano – (IT) - Marketable Passive Homes for Winter

and Summer Comfort16 - KeepCool -Austrian Energy Agency – (AU) - Service Buildings Keep Cool –

Promotion of "sustainable cooling" in the service building sector

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European Commission

Part III

The Energy Certification of

Berlaymont 2005Summary of project results

October 2005


The Berlaymont Building Re-opened since November 2004, after a full scale renovation

2.000 kWCogeneration heat output

2.500 kVACogeneration electrical capacity

13.000 kVAElectrical power

Preserve symbol, flagship building of the Commission

10.000 kWRating of cooling system

Model building: comfort, direction, vision, acoustics, operations

7.800 kWRating of heating system

Model building: environment, energy savings

1.156No. parking spaces

Increase work space933Capacity of meeting rooms

Integrating in environment, accessible2.250Occupant capacity

Adaptable to changing needs16 levelsFloors

Sober & functional building 241.515 m2Total floor space

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Aim of the projectInitiative to illustrate and raise awareness of the buildings’ directive and the measures that MS are required to implement by January 2006Refurbishment of the Berlaymont was a good opportunity for the Commission to lead to way by arranging the energy certification in advance of the Buildings’ DirectiveMarch 2004, EDM Committee set up a sub-group to undertake this project: Austria, France, Germany, Netherlands, Poland and Portugal appointed expertsOffer a practical way to tackle difficulties that may arise in certifying existing buildings & give Member States opportunity to work together & pilot their methods in a complex building


Methodology & Assumptions (1/2)

6 steps:A. Assessment and agreement of data B. Compilation of the final data set and assumptionsC. Interpretation of the data set and assumptions; collection of

supplementary dataD. Berlaymont building tour and inspectionE. Analysis and energy calculation by Member States’ expertsF. Delivery of the energy certificates by the Member States’

experts and reporting3 working meetings of the Sub-group (March, September, November 2004) Presentation of certificates at a Press Conference on 22 June 2005

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Methodology & Assumptions (2/2)

One final set of data & one set of assumptionsWorking assumptions:

The Berlaymont building is located in their country, while using the climate and weather conditions for a reference location that is most similar to the Brussels weather data. To examine the list of input data & building interpretation

assumptions provided by The Netherlands (help reduce the variation of final results);

To include, at least, the first basement (cafeteria and press rooms) in the energy calculation (DE also included the lower floors)

Final data and assumptions collected by COMASE SA experts


Summary of Member States’ results (1/2)

All certificates give “good” to “very good” energy efficiency ratings

All conclude it performs better than the average equivalent building in their country – e.g. 45% better than average air-conditioned office building in DE; 41% better than min. requirements in PT legislation; 24% better than a new building in NL; 7% better than reference building in FR

Consumption/m2 is about ½ of current average for comparable buildings

Results vary from country to country - data acquisition, calculation and determination of an indicator explain the deviation

Format and content of certificates are not final or legally-binding

“C” given by AT & PL was defined as very conservative as it is the first rating for non-residential building in these countries

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Summary of Member States’ results (2/2)

11,4 kWh/m2year5,57 kWh/ m2a (net parking energy)

Lifts and Parking►

27,2 kWh/m2year3,3 kWh/m2a4,6 kWh/ m2aPumps and Fans►

34,7 kWh/m2year23,2 kWh/m2an.a.Equipment (if included) ►

Included in primary energy conversion

74,7 kWhe/m2aIncluded in primary energy

conversion

Cogeneration►

-n.a.Solar Energy►

-8,7 kWh/m2a8,86 kWh/m2a8,57 kWh/m2aDomestic Hot Water►

14,5 kWh/m2year13,4 kWh/m2a18,69 kWh/m2a18,19 kWh/m2a

Lighting►

(included in heating and cooling)

5,9 kWh/m2a12,12 kWh/m2a 16,55 kWh/m2a

Ventilation (mechanical) ►

(included in cooling)7,4 kWh/m2a2,68 kWh/m2a 7,39 kWh/m2aAC moisture/humidifying►


Cooling►


Heating►

Net Energy (specify units)

3.933.038 kgep/year223,4 kWh/m² a71.285.029 MJ/year217,64 kWh/m2a101 kWh/m² aPrimary Energy (sp.

units)►

155,6 kWh/m2year170,9 kWh/m² a182,69 kWh/m2a

198,2 kWh/m2a

Final Energy (specify units)►

139,5 kWh/m2year129,7 kWh/m² a120,38 kWh/m2a

127,1 kWh/m2a

Net Energy (specify units)►

581038219(144)No. of Zones ►

Portugal Poland Netherlands Germany France Austria


Observations & lessons learned

Not easy task: complexity of the building and complex installations; influenced the duration of the exercise;

The hardest part: gather the information in order to make the assumptions; quality of data acquisition is a key element influencing the overall performance of the certification process; exact geometrical and environmental data are very important

Not possible to compare with an existing building: no benchmarks had been set (NL); a key issue relates to striking the right balance Reproducibility - Accuracy

Major difficulty: the building location as far as climate is concerned (PT) The Directive left a very high degree of subsidiarity in

implementation; there is a bottom up push for greater harmonisation; clear desire to exchange information and experience between the various Member States

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