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Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Building components and the Energy Performance Directive
Dr. ir. Peter Wouters Belgian Building Research Institute
ENERBUILD workshop Budapest 24 January 2003
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Structure of the presentation
Background for the presentation
Why in 2003 discussions on Energy Performance Regulations?
What are the challenges?
Information from SAVE ENPER project
Conclusions
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Background for the presentation
Work in relation to EPD and national regulations Coordination of EC SAVE ENPER project
Work in Belgian context Proposal for Flemish regulation and support for other regions
IEA HYBVENT work Task leader on assessment hybrid ventilation in S&R
EC RESHYVENT work Task leader on standardisation and regulation
Kyoto Buildings network Network ‘animator’
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Energy efficiency and indoor climate :Evoluation during the last 20...30 years In seventies :
due to oil crisis, strong interest in energy conservation– Thermal insulation– Efficient boilers
Approach in regulations : minimum requirements with respect to thermal insulation minimum requirements for efficiency of boilers
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Energy efficiency and indoor climate :Evoluation during the last 20...30 years In seventies :
due to oil crisis, strong interest in energy conservation– Thermal insulation– Efficient boilers
Approach in regulations : minimum requirements with respect to thermal insulation minimum requirements for efficiency boilers requirement on net heating demand of buildings
Later on : attention for passive solar energy free gains
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Energy efficiency and indoor climate :Evoluation during the last 20...30 years In seventies :
due to oil crisis, strong interest in energy conservation– Thermal insulation– Efficient boilers
Later on : attention for passive solar energy free gains
Approach in regulations : Energy Performance Regulations
Mainly in nineties : Summer comfort, visual comfort, air quality Total energy use : domestic hot water, fans, renewables
Today : many regulations focus on total primary energy use with
attention for indoor climate conditions
PLEIADE dwelling Louvain-La-Neuve
Thermal insulation of foundations
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
10
15
20
25
30
8/1 8/2 8/3 8/4 8/5 8/6 8/7 8/8 8/9 8/10 8/11
[°C
]
Extérieur Salon Bibliothèque Coin repas
Outside
Living, bedroom and kitchen
Summer temperatures in 1997
10 days
Very importa
nt for d
esigning and
assessing (innovativ
e)building envelopes
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Europe standards and regulations
Standards : Construction Product Directive (CPD - 1989) Streamlining of procedures in national standards Major role for CEN, CENELEC, EOTA,…
Regulations : Energy Performance Directive (EPD - 2003) Minimum requirements for member states with
respect to energy performance requirements No major role for specific European organisation
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Article 1 : Objective The objective of this Directive is to promote the improvement of
the energy performance of buildings within the Community, taking into account outdoor climatic and local conditions, as well as indoor climate requirements and cost-effectiveness.
This Directive lays down requirements as regards: the general framework for a methodology of calculation of
the integrated energy performance of buildings; the application of minimum requirements on the energy
performance of new buildings; the application of minimum requirements on the energy
performance of large existing buildings that are subject to major renovation;
energy certification of buildings; and regular inspection of boilers and of air-conditioning systems in
buildings and in addition an assessment of the heating installation in which the boilers are more than 15 years old.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Artile 3 : Adoption of a methodology
Member States shall apply a methodology, at national or regional level, of calculation of the energy performance of buildings on the basis of the general framework set out in the Annex. Parts 1 and 2 of this framework shall be adapted to technical progress in accordance with the procedure referred to in Article 14(2), taking into account standards or norms applied in Member State legislation.
This methodology shall be set at national or regional level.
The energy performance of a building shall be expressed in a transparent manner and may include a CO2 emission indicator.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
The methodology of calculation of energy performances of buildings shall integrate the following aspects:
(a) thermal characteristics of the building (shell and internal partitions, etc.). These characteristics may also include air-tightness;
(b) heating installation and hot water supply, including their insulation characteristics;
(c) air-conditioning installation;
(d) ventilation;
(e) built-in lighting installation (mainly the non-residential sector);
(f) position and orientation of buildings, including outdoor climate;
(g) passive solar systems and solar protection;
(h) natural ventilation;
(i) indoor climatic conditions, including the designed indoor climate.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
The positive influence of the following aspects shall, where relevant in this calculation, be taken into account:
(a) active solar systems and other heating and electricity systems based on renewable energy sources;
(b) electricity produced by CHP;
(c) district or block heating and cooling systems;
(d) natural lighting.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Article 5 : New buildings
Member States shall take the necessary measures to ensure that new buildings meet the minimum energy performance requirements referred to in Article 4.
For new buildings with a total useful floor area over 1 000 m², Member States shall ensure that the technical, environmental and economic feasibility of alternative systems such as: decentralised energy supply systems based on renewable
energy, CHP, district or block heating or cooling, if available, heat pumps, under certain conditions,
is considered and is taken into account before construction starts.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Article 6 : existing buildings
Member States shall take the necessary measures to ensure that when buildings with a total useful floor area over 1 000 m² undergo major renovation, their energy performance is upgraded in order to meet minimum requirements in so far as this is technically, functionally and economically feasible.
Member States shall derive these minimum energy performance requirements on the basis of the energy performance requirements set for buildings in accordance with Article 4. The requirements may be set either for the renovated building as a whole or for the renovated systems or components when these are part of a renovation to be carried out within a limited time period, with the abovementioned objective of improving the overall energy performance of the building.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Article 7 : Energy Performance Certificate
Member States shall ensure that, when buildings are constructed, sold or rented out, an energy performance certificate is made available to the owner or by the owner to the prospective buyer or tenant, as the case might be. The validity of the certificate shall not exceed 10 years.
The energy performance certificate for buildings shall include reference values such as current legal standards and benchmarks in order to make it possible for consumers to compare and assess the energy performance of the building.
The certificate shall be accompanied by recommendations for the cost-effective improvement of the energy performance.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Percentage (%) of building stock constructed after 1970 (data for most countries period 1970-1995)
Source : EC (1998)
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Effective rated output?
20 – 100 kW(non-renewable liquid or solid fuel)
Member states must lay down the necessary measures
to establish a regular inspection
>100 kW
In general : inspection at least every 2 years
Gas boilers :This period may be extended to 4 years
Older than 15 years?
1. Member states must lay down the necessary measures to establish a one-off inspection of the whole heating system 2. Based on this inspection, (including assessment of boiler efficiency and boiler sizing compared to heating requirements of the building), experts shall provide advice to users on replacement of boilers, other modifications to heating system and on alternative solutions
Article 8 : Inspection of boilers
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
EPD long term priorities
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
EPD limit date certification (option article 15)
Timing for implementing Directive by member states
EPD limit date national implementation 4 January 2006
EPD medium term priorities
EPD approved Published 4 January 2003
What is the present situation?
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
International collaboration in relationto Energy Performance Regulation :
SAVE-EnPeR project(2001-2003)
The SAVE-EnPeR project aims :
to set up a platform for information exchange,
to systematically collect and analyse these approaches and
to develop suggestions for a ‘model code’.
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Identified tasks in SAVE-ENPER
B1 : EP calculation procedures
B2 : Approaches for dealing with innovative concepts
B3 : Legal context for and practical implementation of EP legislation
B4 : Applicability on existing buildings
B5 : Impact of EP regulation on the building and technology market
B6 : Source book ‘best practice concepts’ and model building code
B7 : Website
B8 : Seminars
B9 : Identification of priority areas for further action
2001 2002 2003
B1 : calculation procedures
B2 : Innovative concepts
B3 : Legislation
B4 : Applicability existing build.
B5 : Impact on market
B6 : Building model code
B7 : Website
Meetings
B8 : Seminars
Timing of seminars and tasks…
June 18 - Brussels
November 12 - Paris
March 6 - Athens
September 18 - London
February 3 - Delft
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
What does EPR coverWhat does EPR cover
17 countries 7 5 3
Calculation related aspects(J.C. Visier)
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
SSILIL
A1 B1 C3 D3NONO E2
UKUK A1 B2 C2 D2 E3
DKDK A1 B3 C2 D1 E2
AA A1 B3 C1 D1 E3
SPSP A1 B3 C1 D1 E2
PTPT A1 C1 D1 E2
NLNL A1 B3 D1 E2C2
CHCH A1 B3 D1C1 E1
GRGR A1 B3 D1 E1C2
DD A1 B3 C2 D2 E3FRFR A2 C1 D1 E2BB A2 E2C2 D2FIFI A1 B2 C1 D1 E1
B2
SISI
A1 E2B3 C3A1 B2 C3 D3
D3E1
A1 B3 D2
DesignDesignCalculCalcul
CheckCheckDesignDesign
DuringDuringConstrConstr..
UponUponDeliverDeliver
AfterAfterConstrConstr..
E3C1D2
D2
C2
Leg
al aspects
(M. S
antam
ou
ris)
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Ver
tica
l ac
tivi
ties
Horizontal activities
Generalphilosophy
Strategy - ContactsDG’s, CEN, EOTA, ...
Dissemination(website, newsletter, conferences)
Product databases(concepts, coordination,..)
Global consistencymanagement
Software
EPR calculationprocedures Energy certification Legal aspects
Ad
van
ced
fa
cad
es
an
d w
ind
ow
s
Ad
van
ced
ve
ntil
atio
n
Inte
llig
en
t lig
htin
g
Op
era
tion
al p
erf
orm
an
ces
of
HV
AC
He
at
pu
mp
s
PV
an
d r
en
ew
ab
les
Ind
oo
r cl
ima
te
Inte
liig
en
t co
ntr
ol
Bo
iler
test
ing
AC
te
stin
g
Database ofEnglish doc. (+ FR? GE?)
Economics
Sustainable energy
Studies on compliance of regulationNetworking
Existing buildingsincl. renovations Validation of EP proceduresEP for market support
Loans, subsidies, ...Education
Required activities(just a list of examples…)
There
clearly is
a need fo
r
European/in
tern
ational c
oordinatio
n
Key challenge
To defragment the European
pre-normative and pre-legislative research
on sustainable energy performances of buildings
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment© J. Vyncke
“Monolithic”Partners known at outset
Tasks identified
Budget known
“Incremental” participationTasks identified
Budget known
Not all partners are in
“Incremental”funding
Objectives known
Technology roadmap
Tasks to be completed
Budget to be changed
Participants as well
IntegratedProjectsKyoto Build
ings Platform
is under p
reparation
Energy Environment & Sustainable DevelopmentThematic Network on Energy in the Built Environment
Conclusions
Implementing an approach as required in EPD seems very logical in present context
Such implementation is challenging but, if well prepared and coordinated, feasible
An EPR clearly offers new opportunities for the building industry and should lead to increased quality of buildings at reasonable additional cost
We hope to achieve increased European collaboration