prEN 15203

Energy performance of buildings - Application of calculation of energy use to existing buildings

Energy labelling of buildings requires a method valid for both new and existing buildings, and treating them in an equivalent way.
In new buildings all required information exists to compute energy use, when necessary using conventional occupancy data; but the actual energy use is not available. In existing buildings, actual energy use is known in some cases from energy meters, but often some information, such as U-values of components or actual air change rate is missing. Since energy use for space heating and cooling strongly depends on occupants' behaviour and that different uses are involved, actual energy use cannot be used for energy labelling of the building without correction.
Therefore, a methodology should be developed to get the same results from different sets of data. The work will propose a methodology to assess missing data and to calculate a "standard" energy use for space heating and cooling. This work item also includes a methodology that allows determining the energy effectiveness of possible improvements.

Energieeffizienz von Gebäuden - Bewertung des Energieverbrauchs und Festlegung der Leistungsindikatoren

Diese Norm legt die Energieverwendungszwecke fest, die bei der Festlegung von Leistungsindikatoren der Energieeffizienz neuer und bereits bestehender Gebäude zu berücksichtigen sind und enthält Folgendes:
a)   Ein Verfahren zur Berechnung des Zielleistungsindikators, einem Normenergieverwendungszweck, der nicht vom Verhalten der Gebäudenutzer, den tatsächlichen Wetterbedingungen und weiteren tatsächlichen (Umwelt  oder Eingangs )Bedingungen abhängig ist. Für die Anwendung dieses Verfahrens stellen die Gebäudebelegung, das Klima und einige weitere Daten, die nicht vom Gebäude selbst abhängig sind, konventionelle Daten dar, die von der bestimmungsgemäßen Nutzung des Gebäudes und der betrachteten Klimazone abhängen.
b)   Ein Verfahren zur Bewertung des Funktionsleistungsindikators auf der Grundlage der Bezugsenergie.
c)   Eine Verfahrensweise zur Verbesserung des Vertrauens in das Gebäudeberechnungsmodell durch einen Vergleich mit dem tatsächlichen Energieverbrauch.
d)   Ein Verfahren zur Bewertung der Energieeffizienz durch mögliche Verbesserungen.
Es ist die Aufgabe der nationalen Körperschaften festzulegen, unter welchen Bedingungen und für welche Gebäudetypen die verschiedenen Leistungsindikatoren gelten.

Performance énergétique des bâtiments - Evaluation de l'énergie utilisée et définition des indices de performance

Energijske lastnosti stavb – Ugotavljanje porabe energije in definicije ocenitev Energetska učinkovitost stavb

General Information

• Status: Not Published
• Technical Committee: CEN/TC 89 - Thermal performance of buildings and building components
• Drafting Committee: CEN/TC 89/WG 4 - Energy use of buildings
• Mandate: M/343 - Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and estimating the environmental impact, in accordance with the terms set forth in Directive 2002/91/EC
• Ref Project: oSIST prEN 15203:2005 - Energy performance of buildings - Application of calculation of energy use to existing buildings

Relations

• Merged Into: EN 15603:2008 - Energy performance of buildings - Overall energy use and definition of energy ratings
• Effective Date: 07-Mar-2023
• Child: EN 15603:2008 - Energy performance of buildings - Overall energy use and definition of energy ratings
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI oSIST prEN 15203:2005

PREDSTANDARD
maj 2005
Energijske karakteristike stavb – Ugotavljanje porabe energije in definicije
ocenitev
Energy performance of buildings - Assessment of energy use and definition of
ratings
ICS 91.120.10 Referenčna številka
oSIST prEN 15203:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
DRAFT
prEN 15203
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2005
ICS
English version
Energy performance of buildings - Assessment of energy use
and definition of ratings
Performance énergétique des bâtiments - Evaluation de Energetische Verhalten von Gebäuden - Evaluierung des
l'énergie utilisée et définition des indices de performance Energieverbrauchs von Gebäuden und Definition der
Leistungsindikatoren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 89.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15203:2005: E
worldwide for CEN national Members.

---------------------- Page: 2 ----------------------
prEN 15203 :2005 (E)
Contents Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .7
4 Symbols and abbreviations .9
5 Assessment of energy use of buildings.10
6 Delivered energy, primary energy, emissions and energy costs .14
7 Calculated rating.17
8 Operational rating.19
9 Validated building calculation model .22
10 Planning of retrofit measures for existing buildings .25
11 Report .26
Annex A (normative) Methods for collecting building data.28
Annex B (normative) Assessing the used amounts of energyware .31
Annex C (informative) Conventional input data related to occupancy.33
Annex D (informative) Confidence intervals.35
Annex E (informative) Other uses of ener
...