The use of the CEN & ENISO EPBD standards and
the further development in
CEN and ISO.
Jaap Hogeling
Director ISSO, Dutch building services knowledge centre
Chair CEN TC 371 Program Committee on EPBD
Partner in the EU CENSE project
Contract: EIE/07/069/SI2.466698 Duration: October 2007 – March 2010
Also contributing to the BUILP UP project
09-12-2009
REHVA Supporters Seminar
The EPBD standards has been
prepared by the CEN TC’s:
CEN/TC 89 Thermal performance of buildings
and building components

CEN/TC 156 Ventilation for buildings

CEN/TC 169 Light and lighting

CEN/TC 228 Heating systems in buildings

CEN/TC 247 Building automation, controls and
building management
This work is coordinated by:

CEN-TC 371 Programme Committee on EPBD
( the former CEN BT TF 173 on EPBD)

Brussels 9-12-2009
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2
Methodology for calculating energy performance according EPBD
Energy Performance
Requirement
new buildings Art. 4, 5
major renovations Art. 4, 6
Energy performance
EP EXPRESSIONS
EN 15217
Energy Performance
Certificate
and Recommendations
System
inspections
Art. 7
Art. 8, 9
EP Certificate format and content
EP CERTIFICATES
EN 15217
TOTAL ENERGY USE, EP RATING TYPES
EN 15603 Overall energy use, primary energy, CO2 emissions
Total delivered energy Procedures for calculated and measured energy rating
Heating systems
with boilers
EN 15378
Air conditioning
EN 15240
Ventilation
systems
EN 15239
BUILDING NEEDS, SYSTEM USE, (H, V, C, DHW, L, [A])
EN ISO 13790 , EN 15316-1, EN 15316-2, EN 15243, EN 15316-3, EN 15265, EN 15193,
EN 15241, EN 15232
Definitions and terminology, external climate data, indoor conditions, overheating and solar
protection, thermal performance of building components, ventilation and air infiltration, ..
e.g.: EN ISO 6946, EN ISO 13370, EN ISO 10077-1, EN 13947, EN ISO 10211, EN ISO 10077-2, EN ISO 14683, EN ISO 10456,
EN 15242, EN 13779, EN 15251, EN ISO 15927, EN ISO 7345, EN ISO 9288, EN ISO 925, EN 12792
Brussels 9-12-2009
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3
43 (parts of) standards on EPBD have
been published in 2007/2008

The TOP standards


EN15603 : Way of expression Energy Performance and CO2
EN15217 : EP certificate
Standards on thermal property of buildings (TC89)
 Standards on heating systems (TC228)
 Standards on AC, ventilation and cooling systems,
indoor environment (TC156)
 Standards on lighting (TC169)
 Standards on building automation and controls (TC 247)
 Standards on inspection (TC156 & 228)
The umbrella document CEN TR 15615
 Overview
 Common definitions

Brussels 9-12-2009
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4
The set of CEN-EPBD
standards cover different
levels
EP
Overall
Energy
Performance of
buildings
Overall EP:
Energy Performance
of the building
including its technical
building systems
Boundary conditions
Brussels 9-12-2009
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5
1. Energy Performance
certification
Content and models for Energy
Label
1
2. Expressions for
Energy Performance
and EP requirements
EP, EPmax
Numerical indicators (EP, EPmax),
EP classes
2
6. Energy use
by technical
building
5
systems
and
Brussels 9-12-2009
building
3
4
energy
Need
Use
d
H
..
C
..
L
..
..
Etc.
..
..
Per energy
carrier
..
[email protected]
 Total primary energy,
CO2 emission, ….
ls
mbo
d sy
s an
ition
efin
s, d
er m
on t
Specification of
boundary of the
building and
systems; boundary
of energy uses
included, energy
delivered versus
exported
m
Com
EP, ECO2, ..
4. Boundaries
and building
classification
3. (Procedures for)
Weighting factors
for energy carriers
If measured:
convert to kWh
and to standard
conditions
5. Collect
energy
uses:
Heating –
Cooling –
Lighting –
Ventilation –
Hot Water
6
ms ,
defi
4
H
..
Use
d
Per energy
carrier
..
mbo
d sy
Need
s an
energy
5. Collect
energy
uses:
Heating –
Cooling –
Lighting –
Ventilation –
Hot Water
Humid. systems
Heating systems
Cooling and dehum.
systems
ls
..
C
6. Energy use
by technical
..
..
L
building
..
..
Etc.
5
systems and
building
Energy need for heating and cooling
energy needs
(transmission and ventilation heat transfer, internal and solar gains)
Ventilation systems
Hot Water
systems
Lighting systems and daylight
6
7
If measured:
convert to kWh
and to standard
conditions
n
nitio
Specification of
boundary of the
building and
systems; boundary
of energy uses
included, energy
delivered versus
exported
Input on (building and system) components
Boundary conditions: external climate, indoor
conditions, occupancy
Brussels 9-12-2009
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7
Energy Performance of Buildings
CEN experience



cense
www.iee-cense.eu
The use in the EU MS’s of some standards is up
to 80%, but not all, some standards around 50%.
And growing.
More information available from European
CENSE project (Oct. 2007-March 2010)
Also in CENSE: feed back on actual use 
recommendations for 2nd generation of CEN
standards on EP of buildings
Brussels 9-12-2009
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8
Examples: www.iee-cense.eu
Brussels 9-12-2009
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Need to improve the structure of
the CEN (and EN ISO) standards
CEN experience: many countries use CEN
standards but not always as they are /
“in a practical way’
 Example (next page)

Brussels 9-12-2009
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10
Actual situation in many EU Member States
On CEN standards to support the EPBD
Option: a CEN standard is used partly in
national standard.
National standard is used in building
regulations
National
building
regulations
reference
EN xxx
Partly
copied
Brussels 9-12-2009
Nat.
standard
yyy
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Desirable situation
On CEN standards to support the EPBD
Option: a CEN standard is used as such as
national standard, but with a national
annex.
National standard is used in building
regulations
National
building
regulations
reference
EN xxx
Translated
or not
EN-Nat.
standard
xxx
Nat.
annex
Brussels 9-12-2009
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12
On structure of the standards


How to ensure that the standards can be used
as such by the countries (referred to in the
national building regulations)?
E.g. by making in each standard a clear
distinction between:
 General
part
 Part with options (A, B, C..) to be selected at national
level for a specific application
 Part with national input (and optionally: default input
values provided)
Brussels 9-12-2009
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13
Standards providing input for the energy
performance assessment and standards on
boundary conditions
 On building and system components ( 7 )
 On boundary conditions (climate, indoor cond…)
 Action JWG:
 This
need to be identified as such (standards, work
items, gaps)
 Requirements need to be specified on these, e.g.:




The output variables: consistency in (or conversion of) used
terms, definitions and symbols
Type of output: fit for use in annual calculations? Monthly?
Hourly?
Application range (e.g. types of bldg, new/existing
bldng/systems,
Fit for use in context of building regulations
Brussels 9-12-2009
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14
EN-ISO standards: aim is to
develop global standards



 vital: ISO standards also applicable to CEN, for use in
context of Energy Performance of Buildings Directive
(EPBD)
 for CEN: existing set of CEN standards (published
2007-2008) will be replaced by revised standards,
developed as EN ISO standards under Vienna
agreement between CEN and ISO
This is very important, because this will involve
acceptance from different CEN Technical Committees
(CEN TC 89, TC 156, TC 228, TC 247, TC 169) that ISO
takes the lead
Note:


Several of the CEN standards to support the EPBD are already
EN ISO standards, mainly under ISO TC 163. See N06, annex A
Within CEN: CEN standards not voluntary: national standards in
conflict or overlapping have to be withdrawn
Brussels 9-12-2009
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ISO-TC 163 and 205 will
coordinate their work in this field






The JWG of TC163-205 was established
1st meeting of the JWG "Energy performance of
buildings using holistic approach", at ISO in Geneva
on 8th June 2009,
2nd meeting Nov. 16 in Kyoto (ISO TC 205)
Next meeting in combination with ISO TC 163 around
the 7th June 2010, Seoul, Republic of Korea
Task Groups have been formed.
The participation to the TG’s is open: those interested
are invited to contact the TG leaders and their national
standards body.
Brussels 9-12-2009
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16
Terms and definitions
(ISO/WD 12842 clauses 3-4, ISO 16818
and recommendations by SAG E):
 Ziegler (Leader F), Oschatz(G),
Spitzner(G), van Dijk(NL), Railio (Finl),
Fairey(USA), Ljungquist(USA), Sawachi
(J)

Brussels 9-12-2009
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17
Assessment of overall energy
performance
(segments 3-5 of the hierarchic scheme,
ISO/CD 11638 and ISO/WD 12842
clauses 9-15):
 Oschatz (Leader,G) , Ziegler(F), Hogeling
(NL), Zirngibl(F), Khalil(E), van Dijk(NL),
FaireyUSA), Erhorn(G),Udagawa(J),
Watson(USA)

Brussels 9-12-2009
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18
Rating
(segments 1-2 of the hierarchic scheme.
ISO/WD 12842 clauses 5-8):
 Fairey(USA), Erbe(USA), Sawachi(J),
Zirngibl(F), Eriksson(S), van Dijk
(Leader,NL) , KhalilE), Erhorn(G),
Hogeling(NL).

Brussels 9-12-2009
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19
Advisory group on work items (new
proposals and existing items/standards)
and JWG boundaries
, Hogeling (leader,NL), van Dijk(NL), Essam
Khalil(E), Bagge(S), Tucker(USA), van
Winkel(NL), Zirngibl(F), Olesen(D), Erbe(USA),
Ljungquist(USA), Erhorn(G), Udagawa(J).
 NOTE: The participation to the advisory group is
open: those interested are invited to contact the
AG leader and their national standards body.
Brussels 9-12-2009
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20
Meeting(s)
TGs and AG leaders to report and present proposals to the next JWG
meeting. JWG co-convenors to report to the next TC plenary meetings





It is agreed to hold JWG meetings twice a year,
in conjunction with the parent committees'
plenary
TGs meetings 26th and 27th October 2009,
Florida, USA
JWG meeting November 2009, Kyoto, Japan
TC 205 17th - 19th November 2009, Kyoto,
Japan
TC 163 7th-11th June 2010, Seoul, Republic of
Korea
Brussels 9-12-2009
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Brussels 9-12-2009
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